MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f84cc4838c3d9bacdaa67c1b7e658b8b59dd8e9db2ad1be06f5218defd2c1070. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f84cc4838c3d9bacdaa67c1b7e658b8b59dd8e9db2ad1be06f5218defd2c1070
SHA3-384 hash: 31150e31c37fd853573e929785b50d9800933dfcdc29aff6c36a9fb6985dea379eaff1c48d9e0e3916b1a836589bc000
SHA1 hash: 82d283643825ac28b3d3c2aa8a53ee8562188d3f
MD5 hash: 87ce012ab80916f28d0c729c941a36aa
humanhash: lake-ack-kitten-florida
File name:821-2109060049杜氏诚发_pdf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:862'208 bytes
First seen:2021-09-06 13:58:55 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:U44q/TcqNPrrdY/g/tI/dRvoe6AVfscf++R:U44qIqhrdMtAAac
Threatray 9'568 similar samples on MalwareBazaar
TLSH T182051D3E18FE2327D165D7F5CBE0C823B2D09CAF3122A96457D75B666316A4634C322E
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
213
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
821-2109060049杜氏诚发_pdf.exe
Verdict:
Suspicious activity
Analysis date:
2021-09-06 14:01:37 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/0b57eadf-2da7-4dec-ad9e-54c6578b3535

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Launching the default Windows debugger (dwwin.exe)
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/75ce2d28-f0d9-4647-8784-7d898f2f1623
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/846035
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
.NET source code contains very large strings
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
Moves itself to temp directory
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
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 harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file access)
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 478466 Sample: 821-2109060049#U675c#U6c0f#... Startdate: 06/09/2021 Architecture: WINDOWS Score: 100 41 Found malware configuration 2->41 43 Multi AV Scanner detection for submitted file 2->43 45 Yara detected AgentTesla 2->45 47 6 other signatures 2->47 6 821-2109060049#U675c#U6c0f#U8bda#U53d1_pdf.exe 3 2->6         started        10 guBRet.exe 3 2->10         started        12 guBRet.exe 2 2->12         started        process3 file4 23 821-2109060049#U67...a#U53d1_pdf.exe.log, ASCII 6->23 dropped 49 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->49 51 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 6->51 14 821-2109060049#U675c#U6c0f#U8bda#U53d1_pdf.exe 2 5 6->14         started        19 guBRet.exe 2 10->19         started        53 Injects a PE file into a foreign processes 12->53 21 guBRet.exe 2 12->21         started        signatures5 process6 dnsIp7 29 mail.renlk.me 198.54.115.133, 26, 49728 NAMECHEAP-NETUS United States 14->29 31 192.168.2.1 unknown unknown 14->31 25 C:\Users\user\AppData\Roaming\...\guBRet.exe, PE32 14->25 dropped 27 C:\Users\user\...\guBRet.exe:Zone.Identifier, ASCII 14->27 dropped 33 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->33 35 Moves itself to temp directory 14->35 37 Tries to steal Mail credentials (via file access) 14->37 39 3 other signatures 14->39 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f84cc4838c3d9bacdaa67c1b7e658b8b59dd8e9db2ad1be06f5218defd2c1070/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-09-06 13:59:10 UTC
AV detection:
13 of 41 (31.71%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7bgmja4mhwn2zwvgpqnx4zmlrnm53du5wkwrxydpkimn57jmcbya._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
08b64b4bd7191df64c3b46ef1bb57044cabbafcf80588395742c4532dd63fe6d
AgentTesla
30eab9d2e4ce9e7ad88c6b0206c4d608579d4043ff7f308aa7ab790bf0e24b50
AgentTesla
6ce6f3e5ed0decba840832247a7ce597eb367c8448ea16f82141781feddaf4be
AgentTesla
6f8710e6b6e1995fa20b77cc67c0b06adc292fb8b0a37a827d5155795628e1f4
AgentTesla
7745cfb5dad2fb66719dee21d97d1eabe67eeacf17b4684af8fe67aa5ed0bb96
AgentTesla
a6a8af37b4c8ce1214cb047ea5854e814ea677e3b88eb47e8a898f57e49b2763
AgentTesla
b9b2ce68a18db98a1253e9ece1d2d99a030be25ad433ef2dd3889cff53316d99
AgentTesla
d8365313ee807a43671e695fef494aec45f0604e64718d22f9e8c230a3776562
AgentTesla
+ 9'558 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/210906-rad2xaedbk/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Unpacked files
SH256 hash:
9a569be1313734a7a5657149f890204e1246833e80ac0e45c15b9ebc972cfa99
MD5 hash:
db1ca79a10eb8debc020653b67a41ed4
SHA1 hash:
c9aff868749946879d85e0c75c11a085d3c244c2
Link:
https://www.unpac.me/results/77ca61d9-0e8c-4969-92c0-e7f77f589b6e/
SH256 hash:
6e40d6062837b5345795575c44d273e66db00da111c7ec1ac2ba5cfb126a5ed7
MD5 hash:
c6023ad5915f9c1041b5fac8075adc85
SHA1 hash:
48e9c61c7d14925dbc251ce0c65c5c7c082d89ef
Link:
https://www.unpac.me/results/77ca61d9-0e8c-4969-92c0-e7f77f589b6e/
SH256 hash:
9247e8688f4ef08bea0a48aae32d035c121b8f78c0b50cdc0eeffa2fbacd681c
MD5 hash:
e2c6ab4f49ff24047ffe8d42e50a16f1
SHA1 hash:
1fd44521a230596015e6a040e6d448353429590c
Link:
https://www.unpac.me/results/77ca61d9-0e8c-4969-92c0-e7f77f589b6e/
SH256 hash:
f84cc4838c3d9bacdaa67c1b7e658b8b59dd8e9db2ad1be06f5218defd2c1070
MD5 hash:
87ce012ab80916f28d0c729c941a36aa
SHA1 hash:
82d283643825ac28b3d3c2aa8a53ee8562188d3f
Link:
https://www.unpac.me/results/77ca61d9-0e8c-4969-92c0-e7f77f589b6e/
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/f84cc4838c3d9bacdaa67c1b7e658b8b59dd8e9db2ad1be06f5218defd2c1070

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_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
Create hunting rule
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 f84cc4838c3d9bacdaa67c1b7e658b8b59dd8e9db2ad1be06f5218defd2c1070

(this sample)

  
Delivery method
Distributed via e-mail attachment

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