MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 31c6c7f4f9e823b8a466fd0078d28879370d54ecd53fd4038cd21c38cdf6ba3e. 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: 15


Intelligence 15 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 31c6c7f4f9e823b8a466fd0078d28879370d54ecd53fd4038cd21c38cdf6ba3e
SHA3-384 hash: 6d68866c8e420a5d98cf0e9305ade61021b96b3de0ec81e655cfac72c576a58324d085e8f61ad583c4ebaf8ef026d893
SHA1 hash: 0677c95161f0b192cc3915d78ef936d9e7469c99
MD5 hash: c20afe7753fa1b67aa38275bc63bfed3
humanhash: foxtrot-indigo-salami-sierra
File name:Halkbank_Ekstre_20230914_073809_405251-PDF.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:927'232 bytes
First seen:2023-09-18 08:44:08 UTC
Last seen:2023-09-18 09:40:59 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:7gqAKEcfQYIM4A4aTNNIhR9qCxaLJvp1q:7gfsYYIM4b4NNItEvK
Threatray 6'222 similar samples on MalwareBazaar
TLSH T16D15ADC5F15062ADCC2A97B15A36CD309622BDBA5636A40D14EF3D6B7BFF6C385100A3
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon d4c4c4d8ccd4f0cc (241 x AgentTesla, 65 x Loki, 41 x Formbook)
Reporter abuse_ch
Tags:AgentTesla exe geo Halkbank TUR

Intelligence

File Origin
# of uploads :
2
# of downloads :
300
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
Halkbank_Ekstre_20230914_073809_405251-PDF.exe
Verdict:
Malicious activity
Analysis date:
2023-09-18 11:13:06 UTC
Tags:
stealer agenttesla
Link:
https://app.any.run/tasks/899a91f4-7361-462e-b3c2-2f4cc0ad89ea

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTesla
Create hunting rule
Link:
https://www.capesandbox.com/analysis/449291/
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.26138.14893.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Using the Windows Management Instrumentation requests
Creating a window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/65080e10988a26b6d96e2a26/reports/f6da91fe-a525-4705-93b9-4848fa8c4e9b/overview
Verdict:
Malicious
Labled as:
Ransom.Loki.Generic
Link:
https://www.hybrid-analysis.com/sample/31c6c7f4f9e823b8a466fd0078d28879370d54ecd53fd4038cd21c38cdf6ba3e
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2dd80a59-0489-4995-a02e-19a4e3e5c316
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1309873
Signature
.NET source code contains potential unpacker
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
May check the online IP address of the machine
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)
Sample uses string decryption to hide its real strings
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses the Telegram API (likely for C&C communication)
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1309873 Sample: Halkbank_Ekstre_20230914_07... Startdate: 18/09/2023 Architecture: WINDOWS Score: 100 33 api.telegram.org 2->33 49 Found malware configuration 2->49 51 Icon mismatch, binary includes an icon from a different legit application in order to fool users 2->51 53 Multi AV Scanner detection for submitted file 2->53 55 8 other signatures 2->55 7 NJFUCIF.exe 3 2->7         started        10 Halkbank_Ekstre_20230914_073809_405251-PDF.exe 3 2->10         started        12 NJFUCIF.exe 2 2->12         started        signatures3 process4 signatures5 57 Multi AV Scanner detection for dropped file 7->57 59 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->59 61 May check the online IP address of the machine 7->61 63 Machine Learning detection for dropped file 7->63 14 NJFUCIF.exe 14 2 7->14         started        18 BackgroundTransferHost.exe 7->18         started        20 NJFUCIF.exe 7->20         started        22 NJFUCIF.exe 7->22         started        65 Injects a PE file into a foreign processes 10->65 24 Halkbank_Ekstre_20230914_073809_405251-PDF.exe 17 5 10->24         started        27 NJFUCIF.exe 12->27         started        process6 dnsIp7 35 64.185.227.156, 443, 49713, 49723 WEBNXUS United States 14->35 37 api.ipify.org 14->37 39 tse1.mm.bing.net 18->39 67 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 18->67 41 api4.ipify.org 173.231.16.77, 443, 49710 WEBNXUS United States 24->41 43 api.telegram.org 149.154.167.220, 443, 49711, 49712 TELEGRAMRU United Kingdom 24->43 45 api.ipify.org 24->45 29 C:\Users\user\AppData\Roaming\...29JFUCIF.exe, PE32 24->29 dropped 31 C:\Users\user\...31JFUCIF.exe:Zone.Identifier, ASCII 24->31 dropped 69 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 24->69 71 Tries to steal Mail credentials (via file / registry access) 24->71 73 Hides that the sample has been downloaded from the Internet (zone.identifier) 24->73 47 api.ipify.org 27->47 75 Tries to harvest and steal browser information (history, passwords, etc) 27->75 77 Installs a global keyboard hook 27->77 file8 signatures9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/31c6c7f4f9e823b8a466fd0078d28879370d54ecd53fd4038cd21c38cdf6ba3e/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-09-18 07:35:40 UTC
File Type:
PE (.Net Exe)
Extracted files:
43
AV detection:
21 of 36 (58.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ghdmp5hz5ar3rjdg7uahruuipe3q2vhm2u75ia4m2iodrtpwxi7a._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
076d1d33336d560c55cd222d6e80ea4476119ee8dc51fd8c4c490f366ce66124
AgentTesla
129f85ae2da5c30f9439ef123d09d75e2930f1c025e9913a91c212bbe5758c0b
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402fbecbd491aca725151d4bfe04e48f40bee088a5f492f2ad47751c72b199ce
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48b314f14c55d78d0c708cbe5e55d5871e27c46e8a1e600e29fc160ce61f6237
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6a43a145806aa6aeef3f5c73d915281a6ea092e254ffa4fa8c2d14b0133eb603
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bd8c4eb8ae0047367c1d20d2132d3a2fe2bdf0d197001ea4ecaa3816d59c84e9
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d2ca4fbb0d048c9fcb71ec6146e9a8ef2f648191b4bc8cec3d05f5afa2f0ed5b
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f03f1ae3d3d6bde555d9bc841f8b11ee27459cb9937ae50298b24acb3190552e
AgentTesla
+ 6'212 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/230918-knqjjagb7s/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Looks up external IP address via web service
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Malware Config
C2 Extraction:
https://api.telegram.org/bot6150575626:AAHpE9c3ETZP17P9GlpcOiMFC26P5vpRWxM/
Unpacked files
SH256 hash:
4a8d70ece798fb6955e46bdb4b4813924a3bbcf205e585fd0aef148123a44489
MD5 hash:
3bcd5e9d69da03ebe27b9c2e472d9e8d
SHA1 hash:
aa268bd00ed60a5907b4b2a669ddd21a1b8bb4da
Link:
https://www.unpac.me/results/6919340b-07e4-4ca6-87d3-1717515dda54/
SH256 hash:
c0ffd82febf776b9a676bee048a63a47e0b6a9e340bac3bd717da752a9a71408
MD5 hash:
9d3cf08f2b6c865ee607f63bf57a8966
SHA1 hash:
9819025925f8393aa7d9cb261f64f2a607abd48c
Link:
https://www.unpac.me/results/6919340b-07e4-4ca6-87d3-1717515dda54/
SH256 hash:
1a41302c041856d88ac470f964a874fc89c33b2fe7a3312f5720a01a66f09f1c
MD5 hash:
1b405afbe0016f0d37a617ff75cb6b81
SHA1 hash:
5db11296a850d2f40332c07d594ffaa4dfa5263b
Link:
https://www.unpac.me/results/6919340b-07e4-4ca6-87d3-1717515dda54/
SH256 hash:
0630b864e828fff2d66f33ab7d00fad231df4c00fc0bbad313ee0d12ca503198
MD5 hash:
f559a9abbd849eb977d262d597d6e4fd
SHA1 hash:
0a8769b40b026852690c89b913c2812817ef43c8
Link:
https://www.unpac.me/results/6919340b-07e4-4ca6-87d3-1717515dda54/
Parent samples :
cef72412a1dd9486bae5f7e606d4330660fba98575ba1c939559ccc83536f41a
81ccf158093718305b3499d0f16d8a82bcad69f2740066daca8d5b5ca9979688
SH256 hash:
31c6c7f4f9e823b8a466fd0078d28879370d54ecd53fd4038cd21c38cdf6ba3e
MD5 hash:
c20afe7753fa1b67aa38275bc63bfed3
SHA1 hash:
0677c95161f0b192cc3915d78ef936d9e7469c99
Link:
https://www.unpac.me/results/6919340b-07e4-4ca6-87d3-1717515dda54/
Malware family:
AgentTesla.v4
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/31c6c7f4f9e8/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/31c6c7f4f9e823b8a466fd0078d28879370d54ecd53fd4038cd21c38cdf6ba3e

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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
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

Executable exe 31c6c7f4f9e823b8a466fd0078d28879370d54ecd53fd4038cd21c38cdf6ba3e

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/449291/

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