MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 34914f4c50c096b6fdd81a5b4e4459e52cc0d5e6527a7edef207e81592ea4709. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 34914f4c50c096b6fdd81a5b4e4459e52cc0d5e6527a7edef207e81592ea4709
SHA3-384 hash: 68b12a9eeb00dadbdbd36f4e39d55d6f2fe71bbf16bf7a1cb86d7814e8ba687a1cb42e41e95d88bbb26ee6756c1b6664
SHA1 hash: b2e96c72e8ab9a7d2c3cf84dc07e5270d9480ebd
MD5 hash: f58aa4547c0420baae289aeeb1bed27e
humanhash: black-spring-grey-emma
File name:PO 45-1982020,pdf.scr
Download: download sample
Signature AgentTesla
Create hunting rule
File size:5'257'408 bytes
First seen:2020-08-19 14:08:03 UTC
Last seen:2020-08-19 14:45:15 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 98304:rC8/qqbi4m25gLLpLRMGU6kpJclIA08ka8XcdS+YdqfAvplTU4385fo:rC8/qqbi4m25gLLpLRMGUlP/RvbPT
Threatray 10'586 similar samples on MalwareBazaar
TLSH 4D3690403827B257B18930B209C919D4A9DD791C2B702A37CDD7E62CF66DC9B7C9E43A
Reporter abuse_ch
Tags:AgentTesla scr


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: cloudhost-357400.us-midwest-1.nxcli.net
Sending IP: 104.207.254.169
From: TIAN <career@elitegsl.com>
Subject: PO 45-19082020
Attachment: PO 45-1982020.rar (contains "PO 45-1982020,pdf.scr")

AgentTesla SMTP exfil server:
smtp.privateemail.com:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
70
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/48603/
Detection(s):
SecuriteInfo.com.FileRepMalware.13052.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Launching a process
Creating a window
Using the Windows Management Instrumentation requests
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Enabling autorun
Enabling autorun by creating a file
Unauthorized injection to a system process
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.evad
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/438378
Signature
Creates an undocumented autostart registry key
Creates autostart registry keys with suspicious names
Drops PE files to the startup folder
Injects a PE file into a foreign processes
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 271656 Sample: PO 45-1982020,pdf.scr Startdate: 20/08/2020 Architecture: WINDOWS Score: 68 28 Yara detected AgentTesla 2->28 30 Drops PE files to the startup folder 2->30 6 PO 45-1982020,pdf.exe 2->6         started        9 PO 45-1982020,pdf.exe 2 3 2->9         started        12 PO 45-1982020,pdf.exe 2->12         started        14 PO 45-1982020,pdf.exe 2->14         started        process3 file4 32 Creates autostart registry keys with suspicious names 6->32 34 Writes to foreign memory regions 6->34 36 Injects a PE file into a foreign processes 6->36 16 CasPol.exe 6->16         started        24 C:\Users\user\...\PO 45-1982020,pdf.exe, PE32 9->24 dropped 26 C:\...\PO 45-1982020,pdf.exe:Zone.Identifier, ASCII 9->26 dropped 38 Creates an undocumented autostart registry key 9->38 18 CasPol.exe 9->18         started        20 CasPol.exe 12->20         started        22 CasPol.exe 14->22         started        signatures5 process6
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/34914f4c50c096b6fdd81a5b4e4459e52cc0d5e6527a7edef207e81592ea4709/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-19 10:31:33 UTC
AV detection:
20 of 29 (68.97%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=gsiu6tcqyclln7oydjnu4rcz4uwmbvpgkj5h5xxsa7ublexki4eq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
10db1916ce0eeb68ea79bd2aa82f372ed4e2a831f36c7ccfd6292747bd6faa68
AgentTesla
1eda9e7d4d2e9846bd9de68424eb590a324bf19465a1019fca4efda13f7716ab
AgentTesla
446f16b0c437e7be8d51c9365276bcee5cd8709f0a1bbb95fad2969c21e2db54
AgentTesla
4837818e08ee30bf269de7aea2a96c3bf5ad97dcac42a9b119011e2d9a744115
AgentTesla
6da9729b89ad6b0aff3f94e20754a9d46185fe0c9076aa950ddf8e4e720e5ef0
AgentTesla
7c4cc1790fbea6474d3bca240acf5221df1aac14c332cff9bf1a56c33747d7f2
AgentTesla
9daff52b5fd16bd2ff808e6b4ba02d6b46e00d27520ffaabdf42e20d1378a15c
AgentTesla
e070c9b84487dcd9290a34f999f51202c1ab7810bbe060a9817d437c9a7840f2
AgentTesla
ee5d2dab2b72605b3d092c5881f8485a26b8725c70a9fb77f733209e30099463
AgentTesla
fc89e8d722a8625e80e22f5a19ef1371e388e1583e55618f2ea2451dfe356845
AgentTesla
+ 10'576 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer trojan spyware family:agenttesla persistence
Link:
https://tria.ge/reports/200819-yyxqfatbws/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Drops startup file
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla Payload
AgentTesla
Modifies WinLogon for persistence
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Trojan
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/34914f4c50c096b6fdd81a5b4e4459e52cc0d5e6527a7edef207e81592ea4709

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:Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_w1
Create hunting rule
Author:govcert_ch
Description:Detect Agent Tesla based on common .NET code sequences

File information

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

Malspam

AgentTesla

rar e97398d69c45a4689f5515450a7a5b362c0beb742651f88aae0bd95df6a9da7d

AgentTesla

Executable exe 34914f4c50c096b6fdd81a5b4e4459e52cc0d5e6527a7edef207e81592ea4709

(this sample)

  
Dropped by
MD5 d6f59be4cac2c4f9ac103d8480adf6d6
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/48603/
  
Dropped by
SHA256 e97398d69c45a4689f5515450a7a5b362c0beb742651f88aae0bd95df6a9da7d

Comments