MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a0bf1e896eb05794adf5797b217f280b6dde3e75ec0223232ea00731b88d3194. 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: 16


Intelligence 16 IOCs YARA 17 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a0bf1e896eb05794adf5797b217f280b6dde3e75ec0223232ea00731b88d3194
SHA3-384 hash: 0589b66461b2b372b5f9b7dd965fa197b2b383ccd3ba28b0af5edb0f33fb74f0f6e3fdf17746b70331c4acd301916ad9
SHA1 hash: f2aa5af96d177589f1d5e6fd66a233a5b0a14203
MD5 hash: cdd0f44a74a5663ac5edb70d93e13d16
humanhash: muppet-coffee-black-cola
File name:DOC PDF New Purchase Order BMSiMbGVzRAUuaJ.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:728'576 bytes
First seen:2024-02-08 17:23:56 UTC
Last seen:2024-05-02 10:04:52 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:p2iNhxEd6buKxOefeFEEIsnY2lN2NqC9XKZocMYf/Hi9VL7h:p1DxczKxfeFHvY+cTQZocMYHHSZ7
TLSH T11FF42344B3F8574AC95A83B35BF5A14267B5F72B2682E70C1EC520E92C33B819150FAF
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 threatcat_ch
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
58
# of downloads :
348
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
a0bf1e896eb05794adf5797b217f280b6dde3e75ec0223232ea00731b88d3194.exe
Verdict:
Malicious activity
Analysis date:
2024-02-08 17:25:28 UTC
Tags:
evasion stealer agenttesla
Link:
https://app.any.run/tasks/2001abcf-f410-4f2d-94aa-8492508cb87e

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/475468/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

Sanesecurity.Rogue.0hr.20240208-1332.UNOFFICIAL
Create hunting rule

Win.Packed.Filerepmalware-10019564-0
Create hunting rule

Win.Packed.Msilheracles-10020638-0
Create hunting rule

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/65c50e35b4bd387cafd26cee/reports/4e76a291-4991-4829-aeb0-cf218252b512/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/a0bf1e896eb05794adf5797b217f280b6dde3e75ec0223232ea00731b88d3194
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/5bdf2735-e113-45fe-a0be-8a435c4c9a76
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1389334
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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)
Sample uses string decryption to hide its real strings
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1389334 Sample: DOC PDF New Purchase Order ... Startdate: 08/02/2024 Architecture: WINDOWS Score: 100 40 us2.smtp.mailhostbox.com 2->40 42 ip-api.com 2->42 48 Found malware configuration 2->48 50 Malicious sample detected (through community Yara rule) 2->50 52 Sigma detected: Scheduled temp file as task from temp location 2->52 54 16 other signatures 2->54 8 qndBcwhrBm.exe 5 2->8         started        11 DOC PDF New Purchase Order BMSiMbGVzRAUuaJ.exe 7 2->11         started        signatures3 process4 file5 56 Multi AV Scanner detection for dropped file 8->56 58 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->58 60 Machine Learning detection for dropped file 8->60 14 qndBcwhrBm.exe 14 2 8->14         started        17 schtasks.exe 1 8->17         started        36 C:\Users\user\AppData\...\qndBcwhrBm.exe, PE32 11->36 dropped 38 C:\Users\user\AppData\Local\...\tmp5A23.tmp, XML 11->38 dropped 62 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 11->62 64 Adds a directory exclusion to Windows Defender 11->64 66 Injects a PE file into a foreign processes 11->66 19 DOC PDF New Purchase Order BMSiMbGVzRAUuaJ.exe 15 2 11->19         started        22 powershell.exe 23 11->22         started        24 schtasks.exe 1 11->24         started        26 DOC PDF New Purchase Order BMSiMbGVzRAUuaJ.exe 11->26         started        signatures6 process7 dnsIp8 68 Tries to steal Mail credentials (via file / registry access) 14->68 70 Tries to harvest and steal browser information (history, passwords, etc) 14->70 28 conhost.exe 17->28         started        44 ip-api.com 208.95.112.1, 49706, 49710, 80 TUT-ASUS United States 19->44 46 us2.smtp.mailhostbox.com 208.91.199.224, 49708, 49712, 587 PUBLIC-DOMAIN-REGISTRYUS United States 19->46 30 WmiPrvSE.exe 22->30         started        32 conhost.exe 22->32         started        34 conhost.exe 24->34         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a0bf1e896eb05794adf5797b217f280b6dde3e75ec0223232ea00731b88d3194
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a0bf1e896eb05794adf5797b217f280b6dde3e75ec0223232ea00731b88d3194/
Threat name:
Win32.Trojan.SnakeKeylogger
Create hunting rule
Status:
Malicious
First seen:
2024-02-08 13:33:26 UTC
File Type:
PE (.Net Exe)
Extracted files:
27
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=uc7r5clowblzjlpvpf5sc7zibnw54ptv5qbcgizouadtdoenggka._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240208-vypebshh77/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Unpacked files
SH256 hash:
a6893955971db0869b93d3e3838f33f6f1fd1f81c06ea8f95496a6b115e55726
MD5 hash:
536622ff2e5df3daad4daa06a0dec7a8
SHA1 hash:
c755499fcbe60b96e7d361cf6c5b3ee629e9e473
Link:
https://www.unpac.me/results/4b0427db-9bf8-4d32-9cf5-e6cdb258e8df/
SH256 hash:
e9c028ecb36a6fb2e3a9f2ce8e58fa444649dd3c47039765cca1967dcc99ef3b
MD5 hash:
65e87dc385029fc40a1d83797b7fbbae
SHA1 hash:
96ee40ce767bf100c7f5c7eb38eda137a9ecd6e5
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_SUSPICIOUS_EXE_SandboxHookingDLL
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/4b0427db-9bf8-4d32-9cf5-e6cdb258e8df/
Parent samples :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 hash:
971c821aa19832e04f1dd44b19cdb909d36d27be2f9e62edd10bf7887a43d15a
MD5 hash:
6d7a285502323918820b8513b5f33d75
SHA1 hash:
9633177bbb29c2563fec4a7dd381f4a278588437
Link:
https://www.unpac.me/results/4b0427db-9bf8-4d32-9cf5-e6cdb258e8df/
SH256 hash:
c826e8d1a44c4c8e1c84e5c561037b1850b5d6bffcc36e11f111b4ebe379c0af
MD5 hash:
dc799d2fcc59ba38157aaf431c9aefef
SHA1 hash:
25a6e473d78b63d8c635fcdbb0cada01c310927d
Link:
https://www.unpac.me/results/4b0427db-9bf8-4d32-9cf5-e6cdb258e8df/
SH256 hash:
a0bf1e896eb05794adf5797b217f280b6dde3e75ec0223232ea00731b88d3194
MD5 hash:
cdd0f44a74a5663ac5edb70d93e13d16
SHA1 hash:
f2aa5af96d177589f1d5e6fd66a233a5b0a14203
Link:
https://www.unpac.me/results/4b0427db-9bf8-4d32-9cf5-e6cdb258e8df/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a0bf1e896eb0/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/a0bf1e896eb05794adf5797b217f280b6dde3e75ec0223232ea00731b88d3194

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:AgentTeslaV3
Create hunting rule
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:INDICATOR_EXE_Packed_GEN01
Create hunting rule
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Create hunting rule
Author:ditekSHen
Description:Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
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
Rule name:Windows_Trojan_AgentTesla_ebf431a8
Create hunting rule
Author:Elastic Security

File information

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

Malspam

AgentTesla

Executable exe a0bf1e896eb05794adf5797b217f280b6dde3e75ec0223232ea00731b88d3194

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/475468/

Comments