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File name:

C:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\LH043OAM\wordupd3[1].tmp

Full analysis: https://app.any.run/tasks/926b1abf-0e42-46aa-a819-91b8ab4437d6
Verdict: Malicious activity
Threats:

Ransomware is a type of malicious software that locks users out of their system or data using different methods to force them to pay a ransom. Most often, such programs encrypt files on an infected machine and demand a fee to be paid in exchange for the decryption key. Additionally, such programs can be used to steal sensitive information from the compromised computer and even conduct DDoS attacks against affected organizations to pressure them into paying.

Malware Trends Tracker     >>>
Analysis date: September 18, 2019, 15:07:11
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
evasion
trojan
ransomware
buran
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386, for MS Windows
MD5:

636D3C669E36510BF337FD2F1EA64732

SHA1:

288FEFA5D1A74D335D508B1B36453C70071C19B2

SHA256:

83157309528CD13E8D0CF8AA2202449CC454DE56A2E9C689C75847E0F6B7F8F4

SSDEEP:

6144:CSADzS90C6waTX9h+HkTokdKVx5n7MW2yBbbyMrkOK2qx7bys2T:CnrXb9daxZ7MW2yBbbvgHdx7b

ANY.RUN is an interactive service which provides full access to the guest system. Information in this report could be distorted by user actions and is provided for user acknowledgement as it is. ANY.RUN does not guarantee maliciousness or safety of the content.

  • MALICIOUS

    • Starts BCDEDIT.EXE to disable recovery

      • cmd.exe (PID: 3520)

    • Changes settings of System certificates

      • lsass.exe (PID: 3476)

    • Deletes shadow copies

      • cmd.exe (PID: 2300)
      • cmd.exe (PID: 3308)
      • cmd.exe (PID: 3468)

    • Changes the autorun value in the registry

      • reg.exe (PID: 2500)

    • BURAN was detected

      • lsass.exe (PID: 3476)

    • Loads the Task Scheduler COM API

      • wbengine.exe (PID: 3720)

    • Renames files like Ransomware

      • lsass.exe (PID: 2552)

  • SUSPICIOUS

    • Executable content was dropped or overwritten

      • cmd.exe (PID: 3400)

    • Starts CMD.EXE for self-deleting

      • wordupd3[1].tmp.exe (PID: 2896)
      • lsass.exe (PID: 3476)

    • Creates files in the user directory

      • lsass.exe (PID: 3476)
      • cmd.exe (PID: 3400)

    • Creates files in the Windows directory

      • wbadmin.exe (PID: 2864)

    • Starts itself from another location

      • wordupd3[1].tmp.exe (PID: 2896)

    • Adds / modifies Windows certificates

      • lsass.exe (PID: 3476)

    • Starts CMD.EXE for commands execution

      • wordupd3[1].tmp.exe (PID: 2896)
      • lsass.exe (PID: 3476)

    • Uses REG.EXE to modify Windows registry

      • cmd.exe (PID: 3400)
      • cmd.exe (PID: 3148)
      • cmd.exe (PID: 3920)
      • cmd.exe (PID: 2404)

    • Executed as Windows Service

      • wbengine.exe (PID: 3720)
      • vds.exe (PID: 3776)
      • vssvc.exe (PID: 4040)

    • Low-level read access rights to disk partition

      • wbengine.exe (PID: 3720)
      • vds.exe (PID: 3776)

    • Uses WEVTUTIL.EXE to clean Windows Eventlog

      • cmd.exe (PID: 4004)
      • cmd.exe (PID: 3264)
      • cmd.exe (PID: 2716)

    • Executed via COM

      • vdsldr.exe (PID: 2768)

    • Uses ATTRIB.EXE to modify file attributes

      • cmd.exe (PID: 3136)

    • Starts SC.EXE for service management

      • cmd.exe (PID: 3668)

    • Application launched itself

      • lsass.exe (PID: 3476)

    • Creates files like Ransomware instruction

      • lsass.exe (PID: 2552)

    • Creates files in the program directory

      • lsass.exe (PID: 2552)

  • INFO

    • Manual execution by user

      • explorer.exe (PID: 2484)
      • iexplore.exe (PID: 3028)

    • Reads Internet Cache Settings

      • iexplore.exe (PID: 3752)

    • Reads internet explorer settings

      • iexplore.exe (PID: 3752)

    • Changes internet zones settings

      • iexplore.exe (PID: 3028)

    • Dropped object may contain Bitcoin addresses

      • lsass.exe (PID: 2552)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | Win64 Executable (generic) (64.6)
.dll | Win32 Dynamic Link Library (generic) (15.3)
.exe | Win32 Executable (generic) (10.5)
.exe | Generic Win/DOS Executable (4.6)
.exe | DOS Executable Generic (4.6)

EXIF

EXE

Subsystem: Windows GUI
SubsystemVersion: 4
ImageVersion: -
OSVersion: 4
EntryPoint: 0x1073
UninitializedDataSize: 13824
InitializedDataSize: 35840
CodeSize: 378880
LinkerVersion: 3.1
PEType: PE32
TimeStamp: 2019:09:15 14:53:37+02:00
MachineType: Intel 386 or later, and compatibles

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 15-Sep-2019 12:53:37
Detected languages:
  • Process Default Language

DOS Header

Magic number: MZ
Bytes on last page of file: 0x0090
Pages in file: 0x0003
Relocations: 0x0000
Size of header: 0x0004
Min extra paragraphs: 0x0000
Max extra paragraphs: 0xFFFF
Initial SS value: 0x0000
Initial SP value: 0x00B8
Checksum: 0x0000
Initial IP value: 0x0000
Initial CS value: 0x0000
Overlay number: 0x0000
OEM identifier: 0x0000
OEM information: 0x0000
Address of NE header: 0x00000080

PE Headers

Signature: PE
Machine: IMAGE_FILE_MACHINE_I386
Number of sections: 6
Time date stamp: 15-Sep-2019 12:53:37
Pointer to Symbol Table: 0x00000000
Number of symbols: 0
Size of Optional Header: 0x00E0
Characteristics:
  • IMAGE_FILE_32BIT_MACHINE
  • IMAGE_FILE_EXECUTABLE_IMAGE
  • IMAGE_FILE_LINE_NUMS_STRIPPED
  • IMAGE_FILE_LOCAL_SYMS_STRIPPED
  • IMAGE_FILE_RELOCS_STRIPPED

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
.text
0x00001000
0x0005912A
0x00059200
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
6.26202
.data
0x0005B000
0x00003576
0x00003600
IMAGE_SCN_CNT_CODE, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_CNT_UNINITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
6.62669
.NewIT
0x00068000
0x000000D6
0x00000200
IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
1.94125
0x00061000
0x000060B9
0x00006200
IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
0.0585309
.rsrc
0x00069000
0x00006122
0x00006200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
5.68131

Resources

Title
Entropy
Size
Codepage
Language
Type
1
6.12671
21504
Latin 1 / Western European
Process Default Language
UNKNOWN

Imports

GdiPlus.dll
kernel32.dll
msimg32.dll
ole32.dll
shell32.dll
winspool.drv
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
112
Monitored processes
52
Malicious processes
6
Suspicious processes
2

Behavior graph

Click at the process to see the details
start wordupd3[1].tmp.exe explorer.exe no specs cmd.exe reg.exe #BURAN lsass.exe cmd.exe no specs ping.exe no specs iexplore.exe iexplore.exe no specs cmd.exe no specs bcdedit.exe no specs cmd.exe no specs bcdedit.exe no specs cmd.exe no specs wbadmin.exe no specs wbengine.exe no specs vdsldr.exe no specs vds.exe no specs cmd.exe no specs wbadmin.exe no specs cmd.exe no specs wbadmin.exe no specs cmd.exe no specs wbadmin.exe no specs cmd.exe no specs wmic.exe no specs vssvc.exe no specs cmd.exe no specs vssadmin.exe no specs cmd.exe no specs reg.exe no specs cmd.exe no specs reg.exe no specs cmd.exe no specs reg.exe no specs cmd.exe no specs attrib.exe no specs cmd.exe no specs cmd.exe no specs wevtutil.exe no specs cmd.exe no specs wevtutil.exe no specs cmd.exe no specs wevtutil.exe no specs cmd.exe no specs sc.exe no specs lsass.exe no specs lsass.exe no specs lsass.exe no specs notepad.exe no specs cmd.exe no specs ping.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
2896"C:\Users\admin\AppData\Local\Temp\wordupd3[1].tmp.exe" C:\Users\admin\AppData\Local\Temp\wordupd3[1].tmp.exe
explorer.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
2484"C:\Windows\explorer.exe" C:\Windows\explorer.exe—explorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Explorer
Exit code:
1
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
3400"C:\Windows\system32\cmd.exe" /e:on /c md "C:\Users\admin\AppData\Roaming\Microsoft\Windows" & copy "C:\Users\admin\AppData\Local\Temp\wordupd3[1].tmp.exe" "C:\Users\admin\AppData\Roaming\Microsoft\Windows\lsass.exe" & reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /V "Local Security Authority Subsystem Service" /t REG_SZ /F /D "\"C:\Users\admin\AppData\Roaming\Microsoft\Windows\lsass.exe\" -start"C:\Windows\system32\cmd.exe
wordupd3[1].tmp.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Command Processor
Exit code:
0
Version:
6.1.7601.17514 (win7sp1_rtm.101119-1850)
2500reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /V "Local Security Authority Subsystem Service" /t REG_SZ /F /D "\"C:\Users\admin\AppData\Roaming\Microsoft\Windows\lsass.exe\" -start"C:\Windows\system32\reg.exe
cmd.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Registry Console Tool
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
3476"C:\Users\admin\AppData\Roaming\Microsoft\Windows\lsass.exe" -startC:\Users\admin\AppData\Roaming\Microsoft\Windows\lsass.exe
wordupd3[1].tmp.exe
User:
admin
Integrity Level:
HIGH
Exit code:
0
3600"C:\Windows\system32\cmd.exe" /c for /l %x in (1,1,999) do ( ping -n 3 127.1 & del "C:\Users\admin\AppData\Local\Temp\wordupd3[1].tmp.exe" & if not exist "C:\Users\admin\AppData\Local\Temp\wordupd3[1].tmp.exe" exit )C:\Windows\system32\cmd.exe—wordupd3[1].tmp.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Command Processor
Exit code:
0
Version:
6.1.7601.17514 (win7sp1_rtm.101119-1850)
3680ping -n 3 127.1 C:\Windows\system32\PING.EXE—cmd.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
TCP/IP Ping Command
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
3028"C:\Program Files\Internet Explorer\iexplore.exe" C:\Program Files\Internet Explorer\iexplore.exe
explorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Internet Explorer
Version:
8.00.7600.16385 (win7_rtm.090713-1255)
3752"C:\Program Files\Internet Explorer\iexplore.exe" SCODEF:3028 CREDAT:71937C:\Program Files\Internet Explorer\iexplore.exe—iexplore.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
LOW
Description:
Internet Explorer
Version:
8.00.7600.16385 (win7_rtm.090713-1255)
2600"C:\Windows\system32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailuresC:\Windows\system32\cmd.exe—lsass.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Windows Command Processor
Exit code:
0
Version:
6.1.7601.17514 (win7sp1_rtm.101119-1850)
Total events
1 354
Read events
1 240
Write events
111
Delete events
3

Modification events

(PID) Process:(2896) wordupd3[1].tmp.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\wordupd3[1]_RASAPI32
Operation:writeName:EnableFileTracing
Value:
0
(PID) Process:(2896) wordupd3[1].tmp.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\wordupd3[1]_RASAPI32
Operation:writeName:EnableConsoleTracing
Value:
0
(PID) Process:(2896) wordupd3[1].tmp.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\wordupd3[1]_RASAPI32
Operation:writeName:FileTracingMask
Value:
4294901760
(PID) Process:(2896) wordupd3[1].tmp.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\wordupd3[1]_RASAPI32
Operation:writeName:ConsoleTracingMask
Value:
4294901760
(PID) Process:(2896) wordupd3[1].tmp.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\wordupd3[1]_RASAPI32
Operation:writeName:MaxFileSize
Value:
1048576
(PID) Process:(2896) wordupd3[1].tmp.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\wordupd3[1]_RASAPI32
Operation:writeName:FileDirectory
Value:
%windir%\tracing
(PID) Process:(2896) wordupd3[1].tmp.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\wordupd3[1]_RASMANCS
Operation:writeName:EnableFileTracing
Value:
0
(PID) Process:(2896) wordupd3[1].tmp.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\wordupd3[1]_RASMANCS
Operation:writeName:EnableConsoleTracing
Value:
0
(PID) Process:(2896) wordupd3[1].tmp.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\wordupd3[1]_RASMANCS
Operation:writeName:FileTracingMask
Value:
4294901760
(PID) Process:(2896) wordupd3[1].tmp.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\wordupd3[1]_RASMANCS
Operation:writeName:ConsoleTracingMask
Value:
4294901760
Executable files
1
Suspicious files
7 689
Text files
1 275
Unknown types
8

Dropped files

PID
Process
Filename
Type
3028iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\LH043OAM\favicon[1].ico —
MD5:—
SHA256:—
3028iexplore.exeC:\Users\admin\AppData\LocalLow\Microsoft\Internet Explorer\Services\search_{0633EE93-D776-472f-A0FF-E1416B8B2E3A}.ico —
MD5:—
SHA256:—
2552lsass.exeC:\Program Files\Adobe\Acrobat Reader DC\Benioku.htm —
MD5:—
SHA256:—
2552lsass.exeC:\Program Files\Adobe\Acrobat Reader DC\Berime.htm —
MD5:—
SHA256:—
2552lsass.exeC:\Program Files\Adobe\Acrobat Reader DC\IrakHau.htm —
MD5:—
SHA256:—
2552lsass.exeC:\Program Files\Adobe\Acrobat Reader DC\Leame.htm —
MD5:—
SHA256:—
3772wbadmin.exeC:\Windows\Logs\WindowsBackup\Wbadmin.1.etletl
MD5:D14C76A562C10061D7D04645A41CB834
SHA256:045A39DBE94775F49C8A36489ED6323CD62F2520B9899EEEF90945E2EFECFD44
2912wbadmin.exeC:\Windows\Logs\WindowsBackup\Wbadmin.2.etletl
MD5:D14C76A562C10061D7D04645A41CB834
SHA256:045A39DBE94775F49C8A36489ED6323CD62F2520B9899EEEF90945E2EFECFD44
3208wbadmin.exeC:\Windows\Logs\WindowsBackup\Wbadmin.1.etletl
MD5:D14C76A562C10061D7D04645A41CB834
SHA256:045A39DBE94775F49C8A36489ED6323CD62F2520B9899EEEF90945E2EFECFD44
3752iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Low\Content.IE5\index.datdat
MD5:A4B0F5F360CFE4F3E8DF1ECE1A87975C
SHA256:C45036C6E2E3CC6A7ED6C3FF41C56A32B178E8A9AD1BB4D5D268B762C6314A9F
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
3
TCP/UDP connections
7
DNS requests
4
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
3476
lsass.exe
GET
301
88.99.66.31:80
http://iplogger.ru/1Oh8E.jpeg
DE
html
178 b
malicious
3476
lsass.exe
GET
301
158.69.67.193:80
http://geoiptool.com/
CA
html
184 b
whitelisted
3028
iexplore.exe
GET
200
204.79.197.200:80
http://www.bing.com/favicon.ico
US
image
237 b
whitelisted
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
3028
iexplore.exe
204.79.197.200:80
www.bing.com
Microsoft Corporation
US
whitelisted
3476
lsass.exe
88.99.66.31:443
iplogger.ru
Hetzner Online GmbH
DE
malicious
3476
lsass.exe
88.99.66.31:80
iplogger.ru
Hetzner Online GmbH
DE
malicious
3476
lsass.exe
158.69.67.193:443
geoiptool.com
OVH SAS
CA
suspicious
3476
lsass.exe
158.69.67.193:80
geoiptool.com
OVH SAS
CA
suspicious
2896
wordupd3[1].tmp.exe
158.69.67.193:80
geoiptool.com
OVH SAS
CA
suspicious
2896
wordupd3[1].tmp.exe
158.69.67.193:443
geoiptool.com
OVH SAS
CA
suspicious

DNS requests

Domain
IP
Reputation
geoiptool.com
  • 158.69.67.193
whitelisted
www.bing.com
  • 204.79.197.200
  • 13.107.21.200
whitelisted
iplogger.ru
  • 88.99.66.31
malicious
iplogger.org
  • 88.99.66.31
shared

Threats

PID
Process
Class
Message
2896
wordupd3[1].tmp.exe
Potential Corporate Privacy Violation
ET POLICY Geo Location IP info online service (geoiptool.com)
3476
lsass.exe
Potential Corporate Privacy Violation
ET POLICY Geo Location IP info online service (geoiptool.com)
3476
lsass.exe
A Network Trojan was detected
ET TROJAN Observed Buran Ransomware UA (BURAN)
3476
lsass.exe
A Network Trojan was detected
ET TROJAN Buran Ransomware Activity M1
5 ETPRO signatures available at the full report
No debug info
Interactive malware hunting service ANY.RUN
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ANY.RUN
Reports
C:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\LH043OAM\wordupd3[1].tmp