MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8fbf89ff9f1c63329f5251feed90590b8f3bd725e469b5afd25be717f3cb2ca9. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


AgentTesla


Vendor detections: 18


Intelligence 18 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8fbf89ff9f1c63329f5251feed90590b8f3bd725e469b5afd25be717f3cb2ca9
SHA3-384 hash: 7b88905371fd6087c768aac484a883ac78502eb8ff8d0862501e7f48f4da624142b8274cbe18c519d897da4990e163b3
SHA1 hash: 303d2f4a1b8ce101e9957c299ca57a4621d3a016
MD5 hash: 594c88f0815435836775f4af6fd465d4
humanhash: mountain-fourteen-speaker-shade
File name:Shipping documents.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:700'936 bytes
First seen:2024-06-07 13:10:32 UTC
Last seen:2024-06-11 16:35:42 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'749 x AgentTesla, 19'653 x Formbook, 12'246 x SnakeKeylogger)
ssdeep 12288:weATclGRjKCKooZVEhPkzIOiRv+NBTp/U2pQ3pRCXDuIJqyJMq40Bbf25kR:nackROioZCGsJOc2pYkX6OJP
Threatray 2'054 similar samples on MalwareBazaar
TLSH T188E40188352071CEC967CD318AA41C54FA7174AB6B1BC40BA16710AEED4DBD6DF20AF3
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4504/4/1)
Reporter James_inthe_box
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
349
Origin country :
US US
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
8fbf89ff9f1c63329f5251feed90590b8f3bd725e469b5afd25be717f3cb2ca9.exe
Verdict:
Malicious activity
Analysis date:
2024-06-07 13:11:53 UTC
Tags:
stealer agenttesla exfiltration smtp
Link:
https://app.any.run/tasks/31ecfdbe-3507-4cba-ac4c-9d728e44294d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.Taskun-10031574-0
Create hunting rule

Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a file
Using the Windows Management Instrumentation requests
Forced shutdown of a system process
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade overlay packed
Link:
https://www.filescan.io/uploads/666306eaeae3878d8f38801e/reports/07c6b422-fd20-4040-acfc-74cd584e0892/overview
Verdict:
Malicious
Labled as:
Lazy.Generic
Link:
https://www.hybrid-analysis.com/sample/8fbf89ff9f1c63329f5251feed90590b8f3bd725e469b5afd25be717f3cb2ca9
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/cb95bef6-d2d4-4d51-b13c-fa40559a4e6b
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1453696
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
Suspicious powershell command line found
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1453696 Sample: Shipping documents.exe Startdate: 07/06/2024 Architecture: WINDOWS Score: 100 57 mail.springandsummer.lk 2->57 61 Snort IDS alert for network traffic 2->61 63 Found malware configuration 2->63 65 Malicious sample detected (through community Yara rule) 2->65 67 16 other signatures 2->67 8 Shipping documents.exe 7 2->8         started        12 gYctFdAIXtTSr.exe 5 2->12         started        14 boqXv.exe 2->14         started        16 boqXv.exe 2->16         started        signatures3 process4 file5 49 C:\Users\user\AppData\...\gYctFdAIXtTSr.exe, PE32 8->49 dropped 51 C:\...\gYctFdAIXtTSr.exe:Zone.Identifier, ASCII 8->51 dropped 53 C:\Users\user\AppData\Local\...\tmp14A3.tmp, XML 8->53 dropped 55 C:\Users\user\...\Shipping documents.exe.log, ASCII 8->55 dropped 83 Suspicious powershell command line found 8->83 85 Adds a directory exclusion to Windows Defender 8->85 18 RegSvcs.exe 1 4 8->18         started        23 powershell.exe 23 8->23         started        25 powershell.exe 23 8->25         started        27 schtasks.exe 1 8->27         started        87 Antivirus detection for dropped file 12->87 89 Multi AV Scanner detection for dropped file 12->89 91 Machine Learning detection for dropped file 12->91 93 3 other signatures 12->93 29 RegSvcs.exe 12->29         started        31 schtasks.exe 12->31         started        33 conhost.exe 14->33         started        35 conhost.exe 16->35         started        signatures6 process7 dnsIp8 59 mail.springandsummer.lk 50.87.235.85, 49710, 49712, 587 UNIFIEDLAYER-AS-1US United States 18->59 47 C:\Users\user\AppData\Roaming\...\boqXv.exe, PE32 18->47 dropped 69 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 18->69 71 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->71 73 Loading BitLocker PowerShell Module 23->73 37 conhost.exe 23->37         started        39 WmiPrvSE.exe 23->39         started        41 conhost.exe 25->41         started        43 conhost.exe 27->43         started        75 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 29->75 77 Tries to steal Mail credentials (via file / registry access) 29->77 79 Tries to harvest and steal ftp login credentials 29->79 81 Tries to harvest and steal browser information (history, passwords, etc) 29->81 45 conhost.exe 31->45         started        file9 signatures10 process11
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8fbf89ff9f1c63329f5251feed90590b8f3bd725e469b5afd25be717f3cb2ca9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8fbf89ff9f1c63329f5251feed90590b8f3bd725e469b5afd25be717f3cb2ca9/
Threat name:
Win32.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2024-06-05 23:27:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
15
AV detection:
27 of 38 (71.05%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=r67yt747drrtfh2skh7o3eczbohtxvzf4ru3ll6slptrp46lfsuq._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
113e56cc0bb3dca13bf13c0e47a25b102b4f8e7af8b156fc7e6fcd76ba40c8ff
AgentTesla
27fd2ef620c481f51dfa374bcc896396f2afcf809f1d5733c49aa1dbd59989d7
AgentTesla
6f4fe5f02ccbea743f38c50e8876c145db647247654ee55031e42682fa8ef6da
AgentTesla
8fbf89ff9f1c63329f5251feed90590b8f3bd725e469b5afd25be717f3cb2ca9
AgentTesla
+ 2'044 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla execution keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/240607-qex5xahf49/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Command and Scripting Interpreter: PowerShell
AgentTesla
Unpacked files
SH256 hash:
b2018c503c54a91db1daa2807eea61360da3bc293322ad593732bc462dcdba89
MD5 hash:
db9703b093eed64a678ffcb7146f4298
SHA1 hash:
23ad9fe1bd8d01a362c7488291a19d8561b3b952
Link:
https://www.unpac.me/results/e1c85c70-8e53-4476-b509-c43ac392521b/
SH256 hash:
4430cead66992dab78ff7a5b524f361d55ac9c994c019579c4ff047de201ca98
MD5 hash:
c4b318fe1aabaf925e7ab31a0ad92d0c
SHA1 hash:
f61948d8264117f0f787ed14c3eff7625df4fbc9
Link:
https://www.unpac.me/results/e1c85c70-8e53-4476-b509-c43ac392521b/
SH256 hash:
1782e441900cf6fe57a2a1697b16cef43db792365991814621ad1f545b39afda
MD5 hash:
b4cec1725a68f13fdd2e3db6a720e137
SHA1 hash:
6439db4a427962ee0eafcc98ae7b96c1e3888948
Link:
https://www.unpac.me/results/e1c85c70-8e53-4476-b509-c43ac392521b/
SH256 hash:
2ae01061251de51af0f6536047a68d137b5a13c7ea6d02c4cf2235273860318f
MD5 hash:
374e512403b6723a5eda9f5fcf0b027e
SHA1 hash:
519e380f45bc17b2cb62decdb3b33c3ad16f19d1
Detections:
AgentTesla
Create hunting rule
win_agent_tesla_g2
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
Agenttesla_type2
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
INDICATOR_EXE_Packed_GEN01
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Link:
https://www.unpac.me/results/e1c85c70-8e53-4476-b509-c43ac392521b/
Parent samples :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 hash:
55729815a6ad44739f2af0c7a7096f4153fcc109d440f23d0d609065e96b625e
MD5 hash:
82a8fdab718d8d9c1c82472293a72e3d
SHA1 hash:
042c0d08baf858128d32c01476380e142891456e
Link:
https://www.unpac.me/results/e1c85c70-8e53-4476-b509-c43ac392521b/
SH256 hash:
8fbf89ff9f1c63329f5251feed90590b8f3bd725e469b5afd25be717f3cb2ca9
MD5 hash:
594c88f0815435836775f4af6fd465d4
SHA1 hash:
303d2f4a1b8ce101e9957c299ca57a4621d3a016
Detections:
INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Create hunting rule
Link:
https://www.unpac.me/results/e1c85c70-8e53-4476-b509-c43ac392521b/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8fbf89ff9f1c/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/8fbf89ff9f1c63329f5251feed90590b8f3bd725e469b5afd25be717f3cb2ca9

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Create hunting rule
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_imphash
Create hunting rule
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

AgentTesla

zip 3f24b8845c43b9a8d469b7535e178189b12441426875858edff8c638c8ce31e5

AgentTesla

Executable exe 8fbf89ff9f1c63329f5251feed90590b8f3bd725e469b5afd25be717f3cb2ca9

(this sample)

  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 3f24b8845c43b9a8d469b7535e178189b12441426875858edff8c638c8ce31e5
  
Dropped by
MD5 ba7669eaa5d29bfc1d9fb5790ddcb629

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

Comments