File name:

bau.docx

Full analysis: https://app.any.run/tasks/8a5bde66-233c-4dba-bb28-b75a459cf480
Verdict: Malicious activity
Threats:

A loader is malicious software that infiltrates devices to deliver malicious payloads. This malware is capable of infecting victims’ computers, analyzing their system information, and installing other types of threats, such as trojans or stealers. Criminals usually deliver loaders through phishing emails and links by relying on social engineering to trick users into downloading and running their executables. Loaders employ advanced evasion and persistence tactics to avoid detection.

Analysis date: April 29, 2019, 07:55:07
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
ole-embedded
generated-doc
trojan
loader
smoke
Indicators:
MIME: application/vnd.openxmlformats-officedocument.wordprocessingml.document
File info: Microsoft Word 2007+
MD5:

5DA49B0F512C7842E37911D0BF5F5831

SHA1:

31B414AB65E22E19CE3A6B80303E2ED05C53A885

SHA256:

85997E087240560D408392DF17F262D05DAC5ADAF8155605A28C593572599324

SSDEEP:

768:a3D8WX9xOsttObdmj142h8unQE8hjDakw6LDzo:a3PX9xOpmj14P68YH6LY

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

    • Unusual execution from Microsoft Office

      • WINWORD.EXE (PID: 1848)
    • Changes the autorun value in the registry

      • explorer.exe (PID: 1432)
    • Application was dropped or rewritten from another process

      • stub.exe (PID: 3524)
    • Executable content was dropped or overwritten

      • WINWORD.EXE (PID: 1848)
    • Connects to CnC server

      • explorer.exe (PID: 1432)
    • SMOKE was detected

      • explorer.exe (PID: 1432)
  • SUSPICIOUS

    • Creates files in the user directory

      • explorer.exe (PID: 1432)
  • INFO

    • Creates files in the user directory

      • WINWORD.EXE (PID: 1848)
    • Reads Microsoft Office registry keys

      • WINWORD.EXE (PID: 1848)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.docx | Word Microsoft Office Open XML Format document (52.2)
.zip | Open Packaging Conventions container (38.8)
.zip | ZIP compressed archive (8.8)

EXIF

ZIP

ZipRequiredVersion: 20
ZipBitFlag: 0x0006
ZipCompression: Deflated
ZipModifyDate: 1980:01:01 00:00:00
ZipCRC: 0x24886c04
ZipCompressedSize: 373
ZipUncompressedSize: 1460
ZipFileName: [Content_Types].xml

XMP

Title: -
Subject: -
Creator: John Klok
Description: -

XML

Keywords: -
LastModifiedBy: John Klok
RevisionNumber: 1
CreateDate: 2019:03:17 21:23:00Z
ModifyDate: 2019:03:17 21:23:00Z
Template: Normal
TotalEditTime: -
Pages: 1
Words: 3
Characters: 18
Application: Microsoft Office Word
DocSecurity: None
Lines: 1
Paragraphs: 1
ScaleCrop: No
Company: -
LinksUpToDate: No
CharactersWithSpaces: 20
SharedDoc: No
HyperlinksChanged: No
AppVersion: 16
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
35
Monitored processes
3
Malicious processes
3
Suspicious processes
0

Behavior graph

Click at the process to see the details
drop and start start winword.exe stub.exe no specs #SMOKE explorer.exe

Process information

PID
CMD
Path
Indicators
Parent process
1848"C:\Program Files\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\admin\AppData\Local\Temp\bau.docx"C:\Program Files\Microsoft Office\Office14\WINWORD.EXE
explorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft Word
Exit code:
0
Version:
14.0.6024.1000
Modules
Images
c:\program files\microsoft office\office14\winword.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\winsxs\x86_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.6161_none_50934f2ebcb7eb57\msvcr90.dll
c:\windows\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_5.82.7601.17514_none_ec83dffa859149af\comctl32.dll
3524"C:\Users\admin\AppData\Local\Temp\stub.exe" C:\Users\admin\AppData\Local\Temp\stub.exeWINWORD.EXE
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Modules
Images
c:\users\admin\appdata\local\temp\stub.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\imm32.dll
1432explorer.exeC:\Windows\explorer.exe
stub.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Explorer
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\explorer.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll
Total events
1 663
Read events
955
Write events
698
Delete events
10

Modification events

(PID) Process:(1848) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Word\Resiliency\StartupItems
Operation:writeName:p88
Value:
7038380038070000010000000000000000000000
(PID) Process:(1848) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages
Operation:writeName:1033
Value:
Off
(PID) Process:(1848) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages
Operation:writeName:1033
Value:
On
(PID) Process:(1848) WINWORD.EXEKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\00004109D30000000000000000F01FEC\Usage
Operation:writeName:WORDFiles
Value:
1318912030
(PID) Process:(1848) WINWORD.EXEKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\00004109D30000000000000000F01FEC\Usage
Operation:writeName:ProductFiles
Value:
1318912144
(PID) Process:(1848) WINWORD.EXEKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\00004109D30000000000000000F01FEC\Usage
Operation:writeName:ProductFiles
Value:
1318912145
(PID) Process:(1848) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Word
Operation:writeName:MTTT
Value:
38070000DA116EED60FED40100000000
(PID) Process:(1848) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Word\Resiliency\StartupItems
Operation:writeName:':8
Value:
273A38003807000004000000000000008C00000001000000840000003E0043003A005C00550073006500720073005C00610064006D0069006E005C0041007000700044006100740061005C0052006F0061006D0069006E0067005C004D006900630072006F0073006F00660074005C00540065006D0070006C0061007400650073005C004E006F0072006D0061006C002E0064006F0074006D00000000000000
(PID) Process:(1848) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Word\Resiliency\StartupItems
Operation:delete valueName:':8
Value:
273A38003807000004000000000000008C00000001000000840000003E0043003A005C00550073006500720073005C00610064006D0069006E005C0041007000700044006100740061005C0052006F0061006D0069006E0067005C004D006900630072006F0073006F00660074005C00540065006D0070006C0061007400650073005C004E006F0072006D0061006C002E0064006F0074006D00000000000000
(PID) Process:(1848) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:UNCAsIntranet
Value:
0
Executable files
1
Suspicious files
0
Text files
0
Unknown types
4

Dropped files

PID
Process
Filename
Type
1848WINWORD.EXEC:\Users\admin\AppData\Local\Temp\CVR5CF0.tmp.cvr
MD5:
SHA256:
1848WINWORD.EXEC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.Word\~WRS{B77EB048-A218-4998-B577-7179B837E8F0}.tmp
MD5:
SHA256:
1848WINWORD.EXEC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.Word\~WRF{890C995F-7439-4E1C-A09F-6977082C8CC2}.tmp
MD5:
SHA256:
1432explorer.exeC:\Users\admin\AppData\Roaming\Microsoft\hvvtugrr\tesrdgeh.exe
MD5:
SHA256:
1848WINWORD.EXEC:\Users\admin\AppData\Local\Temp\~$bau.docxpgc
MD5:B72E952F916A02C709307EC6972707DA
SHA256:EDB085B0C3533590BA6BA0E863A3117550D962B87333FE0E68F2286082C5813F
1848WINWORD.EXEC:\Users\admin\AppData\Roaming\Microsoft\Templates\~$Normal.dotmpgc
MD5:BAEC04A54AC968DB29FEE2F2ABDA0EA1
SHA256:230C0E0381E2EA1B4CED9700B32635C2548CB4B0CE50C1D60F5BF49BA8E63985
1848WINWORD.EXEC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.MSO\CA0DD517.emfemf
MD5:81E0BA5363CCA75D65D17EA15C45872F
SHA256:C382312E42D2D336C95E2C1E7C1298602E810AF5CBD03806653C3ED73B18AE36
1848WINWORD.EXEC:\Users\admin\AppData\Local\Temp\stub.exeexecutable
MD5:2E7ED53A5AEDFE45425D2944FF8C68DF
SHA256:F66DD3ABEBD56E5313BC6C95CEC4DF2C62D85E1497FF9EC7055823FD6B288D60
1848WINWORD.EXEC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.Word\~WRS{070FC94A-289A-424D-BEBD-77DDE72FDFEF}.tmpsmt
MD5:5D4D94EE7E06BBB0AF9584119797B23A
SHA256:4826C0D860AF884D3343CA6460B0006A7A2CE7DBCCC4D743208585D997CC5FD1
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
19
TCP/UDP connections
14
DNS requests
10
Threats
17

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
1432
explorer.exe
GET
301
184.31.85.84:80
http://msdn.microsoft.com/vstudio
NL
whitelisted
1432
explorer.exe
GET
301
2.18.233.31:80
http://support.microsoft.com/kb/2460049
unknown
whitelisted
1432
explorer.exe
GET
301
2.18.233.31:80
http://support.microsoft.com/kb/982726
unknown
whitelisted
1432
explorer.exe
GET
301
2.18.233.31:80
http://support.microsoft.com/kb/2460049
unknown
whitelisted
1432
explorer.exe
GET
301
2.18.233.31:80
http://support.microsoft.com/kb/2460049
unknown
whitelisted
1432
explorer.exe
GET
301
2.18.233.31:80
http://support.microsoft.com/kb/2460049
unknown
whitelisted
1432
explorer.exe
GET
301
2.18.233.31:80
http://support.microsoft.com/kb/2460049
unknown
whitelisted
1432
explorer.exe
GET
301
2.18.233.31:80
http://support.microsoft.com/kb/2460049
unknown
whitelisted
1432
explorer.exe
GET
302
23.38.36.63:80
http://go.microsoft.com/fwlink/?LinkId=133405
NL
whitelisted
1432
explorer.exe
GET
2.18.233.31:80
http://support.microsoft.com/kb/2460049
unknown
whitelisted
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
1432
explorer.exe
204.79.197.200:80
www.bing.com
Microsoft Corporation
US
whitelisted
1432
explorer.exe
2.18.233.31:443
support.microsoft.com
Akamai International B.V.
whitelisted
1432
explorer.exe
93.123.73.193:80
level23hacktools.com
Histate Global Corp.
BG
malicious
1432
explorer.exe
184.31.85.84:80
msdn.microsoft.com
Akamai International B.V.
NL
whitelisted
1432
explorer.exe
136.243.154.86:443
filezilla-project.org
Hetzner Online GmbH
DE
unknown
1432
explorer.exe
104.108.60.31:443
www.adobe.com
Akamai Technologies, Inc.
NL
whitelisted
1432
explorer.exe
35.158.61.69:443
www.opera.com
Amazon.com, Inc.
DE
unknown
1432
explorer.exe
23.38.36.63:80
go.microsoft.com
Akamai Technologies, Inc.
NL
whitelisted
1432
explorer.exe
35.158.61.69:80
www.opera.com
Amazon.com, Inc.
DE
unknown
1432
explorer.exe
104.111.214.232:443
helpx.adobe.com
Akamai International B.V.
NL
whitelisted

DNS requests

Domain
IP
Reputation
www.bing.com
  • 204.79.197.200
  • 13.107.21.200
whitelisted
support.microsoft.com
  • 2.18.233.31
whitelisted
go.microsoft.com
  • 23.38.36.63
whitelisted
msdn.microsoft.com
  • 184.31.85.84
whitelisted
visualstudio.microsoft.com
  • 104.111.246.141
whitelisted
level23hacktools.com
  • 93.123.73.193
malicious
www.opera.com
  • 35.158.61.69
  • 52.29.218.141
whitelisted
www.adobe.com
  • 104.108.60.31
whitelisted
helpx.adobe.com
  • 104.111.214.232
whitelisted
filezilla-project.org
  • 136.243.154.86
whitelisted

Threats

PID
Process
Class
Message
A Network Trojan was detected
ET TROJAN Possible Sharik/Smoke Loader Microsoft Connectivity check
A Network Trojan was detected
ET TROJAN Possible Sharik/Smoke Loader Microsoft Connectivity check
A Network Trojan was detected
ET TROJAN Possible Sharik/Smoke Loader Microsoft Connectivity check M2
A Network Trojan was detected
ET TROJAN Possible Sharik/Smoke Loader Microsoft Connectivity check
A Network Trojan was detected
ET TROJAN Sharik/Smoke CnC Beacon 9
A Network Trojan was detected
MALWARE [PTsecurity] Bot.Sharik HTTP Header structure
A Network Trojan was detected
MALWARE [PTsecurity] Sharik/SmokeLoader Check-in
A Network Trojan was detected
ET TROJAN Possible Sharik/Smoke Loader Microsoft Connectivity check
A Network Trojan was detected
ET TROJAN Possible Sharik/Smoke Loader Microsoft Connectivity check
A Network Trojan was detected
ET TROJAN Possible Sharik/Smoke Loader Microsoft Connectivity check
No debug info