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File name:

buran.exe

Full analysis: https://app.any.run/tasks/7c173286-e293-4f49-9fa2-a156c7b92dab
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 19, 2019, 07:23:10
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:

7271F9D85668A07349E16CE98C7C2C5F

SHA1:

68236F7FD9F66F568E3DC7D46B67A45EC569A04A

SHA256:

576C60F2960F3294002A03A59D84F1569752421B3EDAF6391EA1E14A168E744A

SSDEEP:

6144:qQvVaiw0zKBB5c++Rg1Gj6KWadvpkN+3n:Zai5KBJ+OjnaL1

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

    • Changes the autorun value in the registry

      • reg.exe (PID: 2308)

    • Changes settings of System certificates

      • lsass.exe (PID: 3616)

    • BURAN was detected

      • lsass.exe (PID: 3616)

    • Deletes shadow copies

      • cmd.exe (PID: 2664)
      • cmd.exe (PID: 3220)
      • cmd.exe (PID: 3152)

    • Starts BCDEDIT.EXE to disable recovery

      • cmd.exe (PID: 3940)

    • Loads the Task Scheduler COM API

      • wbengine.exe (PID: 3932)

  • SUSPICIOUS

    • Starts CMD.EXE for commands execution

      • buran.exe (PID: 3524)
      • lsass.exe (PID: 3616)

    • Uses REG.EXE to modify Windows registry

      • cmd.exe (PID: 3864)
      • cmd.exe (PID: 3560)
      • cmd.exe (PID: 3896)
      • cmd.exe (PID: 3972)

    • Executable content was dropped or overwritten

      • cmd.exe (PID: 3864)

    • Creates files in the user directory

      • cmd.exe (PID: 3864)
      • lsass.exe (PID: 3616)

    • Starts itself from another location

      • buran.exe (PID: 3524)

    • Starts CMD.EXE for self-deleting

      • buran.exe (PID: 3524)

    • Adds / modifies Windows certificates

      • lsass.exe (PID: 3616)

    • Creates files in the Windows directory

      • wbadmin.exe (PID: 3176)

    • Low-level read access rights to disk partition

      • wbengine.exe (PID: 3932)
      • vds.exe (PID: 3776)

    • Executed via COM

      • vdsldr.exe (PID: 2948)

    • Executed as Windows Service

      • wbengine.exe (PID: 3932)
      • vds.exe (PID: 3776)
      • vssvc.exe (PID: 2624)

    • Uses ATTRIB.EXE to modify file attributes

      • cmd.exe (PID: 2976)

    • Starts SC.EXE for service management

      • cmd.exe (PID: 3148)

    • Uses WEVTUTIL.EXE to clean Windows Eventlog

      • cmd.exe (PID: 4092)
      • cmd.exe (PID: 3576)
      • cmd.exe (PID: 2952)

    • Application launched itself

      • lsass.exe (PID: 3616)

    • Creates files in the program directory

      • lsass.exe (PID: 2308)

  • INFO

    No info indicators.
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

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2019:09:03 18:41:38+02:00
PEType: PE32
LinkerVersion: 3.2
CodeSize: 320000
InitializedDataSize: 7168
UninitializedDataSize: -
EntryPoint: 0x79f2
OSVersion: 4
ImageVersion: -
SubsystemVersion: 4
Subsystem: Windows GUI

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 03-Sep-2019 16:41:38

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: 2
Time date stamp: 03-Sep-2019 16:41:38
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
0x0004E032
0x0004E200
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
6.1012
.data
0x00050000
0x00001ADA
0x00001C00
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
2.85882

Imports

advapi32.dll
comctl32.dll
comdlg32.dll
gdi32.dll
gdiplus.dll
imagehlp.dll
kernel32.dll
msimg32.dll
ole32.dll
oleacc.dll
No data.
screenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
101
Monitored processes
46
Malicious processes
6
Suspicious processes
2

Behavior graph

Click at the process to see the details
start buran.exe cmd.exe reg.exe #BURAN lsass.exe cmd.exe no specs ping.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

Process information

PID
CMD
Path
Indicators
Parent process
3524"C:\Users\admin\AppData\Local\Temp\buran.exe" C:\Users\admin\AppData\Local\Temp\buran.exe
explorer.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
3864"C:\Windows\system32\cmd.exe" /e:on /c md "C:\Users\admin\AppData\Roaming\Microsoft\Windows" & copy "C:\Users\admin\AppData\Local\Temp\buran.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
buran.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)
2308reg 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)
3616"C:\Users\admin\AppData\Roaming\Microsoft\Windows\lsass.exe" -startC:\Users\admin\AppData\Roaming\Microsoft\Windows\lsass.exe
buran.exe
User:
admin
Integrity Level:
HIGH
3792"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\buran.exe" & if not exist "C:\Users\admin\AppData\Local\Temp\buran.exe" exit )C:\Windows\system32\cmd.exe—buran.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)
2900ping -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)
3080"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)
3632bcdedit /set {default} bootstatuspolicy ignoreallfailuresC:\Windows\system32\bcdedit.exe—cmd.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Boot Configuration Data Editor
Exit code:
0
Version:
6.1.7601.17514 (win7sp1_rtm.101119-1850)
3940"C:\Windows\system32\cmd.exe" /C bcdedit /set {default} recoveryenabled noC:\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)
2440bcdedit /set {default} recoveryenabled noC:\Windows\system32\bcdedit.exe—cmd.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Boot Configuration Data Editor
Exit code:
0
Version:
6.1.7601.17514 (win7sp1_rtm.101119-1850)
Total events
644
Read events
578
Write events
0
Delete events
0

Modification events

No data
Executable files
1
Suspicious files
505
Text files
29
Unknown types
6

Dropped files

PID
Process
Filename
Type
2308lsass.exeC:\Program Files\Adobe\Acrobat Reader DC\Benioku.htm —
MD5:—
SHA256:—
2308lsass.exeC:\Program Files\Adobe\Acrobat Reader DC\Berime.htm —
MD5:—
SHA256:—
2308lsass.exeC:\Program Files\Adobe\Acrobat Reader DC\IrakHau.htm —
MD5:—
SHA256:—
2308lsass.exeC:\Program Files\Adobe\Acrobat Reader DC\Leame.htm —
MD5:—
SHA256:—
2308lsass.exeC:\Program Files\Adobe\Acrobat Reader DC\LeesMij.htm —
MD5:—
SHA256:—
2308lsass.exeC:\Program Files\Adobe\Acrobat Reader DC\Leggimi.htm —
MD5:—
SHA256:—
2308lsass.exeC:\Program Files\Adobe\Acrobat Reader DC\LeiaMe.htm —
MD5:—
SHA256:—
2308lsass.exeC:\Program Files\Adobe\Acrobat Reader DC\Liesmich.htm —
MD5:—
SHA256:—
2308lsass.exeC:\Program Files\Adobe\Acrobat Reader DC\Lisezmoi.htm —
MD5:—
SHA256:—
2308lsass.exeC:\Program Files\Adobe\Acrobat Reader DC\Llegiu-me.htm —
MD5:—
SHA256:—
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
1
TCP/UDP connections
7
DNS requests
5
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
3616
lsass.exe
GET
301
88.99.66.31:80
http://iplogger.ru/1I7Zz.jpeg
DE
html
178 b
malicious
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
3616
lsass.exe
88.99.66.31:443
iplogger.ru
Hetzner Online GmbH
DE
malicious
3524
buran.exe
158.69.67.193:80
geoiptool.com
OVH SAS
CA
suspicious
3524
buran.exe
158.69.67.193:443
geoiptool.com
OVH SAS
CA
suspicious
—
—
88.99.66.31:80
iplogger.ru
Hetzner Online GmbH
DE
malicious
3616
lsass.exe
158.69.67.193:80
geoiptool.com
OVH SAS
CA
suspicious
3616
lsass.exe
158.69.67.193:443
geoiptool.com
OVH SAS
CA
suspicious

DNS requests

Domain
IP
Reputation
geoiptool.com
  • 158.69.67.193
whitelisted
dns.msftncsi.com
  • 131.107.255.255
shared
iplogger.ru
  • 88.99.66.31
malicious
iplogger.org
  • 88.99.66.31
shared

Threats

PID
Process
Class
Message
3524
buran.exe
Potential Corporate Privacy Violation
ET POLICY Geo Location IP info online service (geoiptool.com)
3616
lsass.exe
Potential Corporate Privacy Violation
ET POLICY Geo Location IP info online service (geoiptool.com)
3616
lsass.exe
A Network Trojan was detected
ET TROJAN Observed Buran Ransomware UA (BURAN)
3616
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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Reports
buran.exe