MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 640c647769b22714c9bd5029c10cd5d3c1d863c5320b24911371183e285ebf4e. 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: 11


Intelligence 11 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 640c647769b22714c9bd5029c10cd5d3c1d863c5320b24911371183e285ebf4e
SHA3-384 hash: 689a25d6baabff7304631566ae480a57c04a237fe6ec25c409127a7c544aa439f77114f03e1db20ecd540e4462e3d2b3
SHA1 hash: 8beab8ce6a22a34df47cdaedbd66b2c071a77705
MD5 hash: 25a897438664cc3d358e0a2ee4a24019
humanhash: moon-single-diet-seventeen
File name:TransactionAdviceDetailsReport-20220512-091440.pdf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:565'248 bytes
First seen:2022-05-12 05:50:38 UTC
Last seen:2022-05-16 09:18:12 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 12288:ZM5WFWRLRUSNR80sjCzf7kfptH3Uiel6laEe:Oi4mUK/jCzf7YJedE
Threatray 18'017 similar samples on MalwareBazaar
TLSH T1D9C4222666706332DEAB2F79CD5090EC13386E86DC34E62F3CA1B4DD8DB2394465527B
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% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Reporter lowmal3
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
231
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/269820/
Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed replace.exe
Link:
https://www.filescan.io/uploads/627ca09240028d3247cbc5a1/reports/a7314eea-379d-4a90-a965-963607598a18/overview
Result
Verdict:
UNKNOWN
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/ba7d3578-aa40-49bb-9eff-3d5b7c0979f1
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/992378
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
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 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 / registry access)
Uses an obfuscated file name to hide its real file extension (double extension)
Uses schtasks.exe or at.exe to add and modify task schedules
Uses the Telegram API (likely for C&C communication)
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 624874 Sample: TransactionAdviceDetailsRep... Startdate: 12/05/2022 Architecture: WINDOWS Score: 100 35 Found malware configuration 2->35 37 Malicious sample detected (through community Yara rule) 2->37 39 Multi AV Scanner detection for dropped file 2->39 41 14 other signatures 2->41 7 TransactionAdviceDetailsReport-20220512-091440.pdf.exe 7 2->7         started        process3 file4 25 C:\Users\user\AppData\Roaming\zXFyVyAF.exe, PE32 7->25 dropped 27 C:\Users\...\zXFyVyAF.exe:Zone.Identifier, ASCII 7->27 dropped 29 C:\Users\user\AppData\Local\...\tmp4566.tmp, XML 7->29 dropped 31 TransactionAdviceD...-091440.pdf.exe.log, ASCII 7->31 dropped 43 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->43 45 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->45 47 Uses schtasks.exe or at.exe to add and modify task schedules 7->47 49 2 other signatures 7->49 11 TransactionAdviceDetailsReport-20220512-091440.pdf.exe 15 2 7->11         started        15 powershell.exe 25 7->15         started        17 schtasks.exe 1 7->17         started        19 TransactionAdviceDetailsReport-20220512-091440.pdf.exe 7->19         started        signatures5 process6 dnsIp7 33 api.telegram.org 149.154.167.220, 443, 49766 TELEGRAMRU United Kingdom 11->33 51 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->51 53 Tries to steal Mail credentials (via file / registry access) 11->53 55 Tries to harvest and steal ftp login credentials 11->55 57 Tries to harvest and steal browser information (history, passwords, etc) 11->57 21 conhost.exe 15->21         started        23 conhost.exe 17->23         started        signatures8 process9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/640c647769b22714c9bd5029c10cd5d3c1d863c5320b24911371183e285ebf4e/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-05-12 05:15:37 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mqggi53jwitrjsn5kau4cdgv2pa5qy6fgifsjeitoemd4kc6x5ha._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
03fb638724597e20f6102deff728cdd8265eecc3f08e54e373c304b4c0718c42
AgentTesla
294f474790e387c27574d3786346002d696aa7770f957afc9dce9ab3383a2298
AgentTesla
3982f95e9287b4848e04b2ae0e9b329720842a5cb221dff83f1ed48e2f7ad6fe
AgentTesla
4927c86dc4aded9410ba188fbe33fba1bc527103be0e66693e23a245e731479f
AgentTesla
53276d0a0acc73fb550b5b29cc686c0e646ee69333e803496cac726b337b5515
AgentTesla
6a6cc6f90add70c714c159eb5f0aad3e6e822d17b21090542a9bd0b996379f9b
AgentTesla
8e5ed115b7473306fd41dc1862d463a22e1918369e83a8c2d97bc3498af5f93e
AgentTesla
9c071afc054e8a65329317a6b449e9f4119a5546c2b3a5c2ce9bf2cb1a04a46e
AgentTesla
fa55b06000b6dce4eacaf3509635e9ade98a0b09fd08ab86f5c13920a782ac92
AgentTesla
+ 18'007 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger spyware stealer trojan
Link:
https://tria.ge/reports/220512-gj5wwaafd4/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
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/bot5310370668:AAEdB2nfvvFj53YoaxJ-AleA2m93WUxxyM0/sendDocument
Unpacked files
SH256 hash:
96ec1d5b404b9b9aae712cb5f03381b338caa7498096bcdabc5eca16af61df95
MD5 hash:
0cb9b9883ebe21de733a6b6e354d507d
SHA1 hash:
ca6d15cb9f98a129f31fe95f333ab85948b39557
Link:
https://www.unpac.me/results/aec46135-e96e-4667-a313-04dd1fa63397/
SH256 hash:
0cdb66ee6442d7989b4f951ba46c1badfe8e9a45c66d246753c233d19f93ebc1
MD5 hash:
3199b910a65e384e38a09f1d1c08e7e3
SHA1 hash:
c99ad4f639be47ebc71eb7519646e3b62f96e48c
Link:
https://www.unpac.me/results/aec46135-e96e-4667-a313-04dd1fa63397/
SH256 hash:
c206122a7336385be557580c114ac0923192f61bc8f77aa58c898135438399f9
MD5 hash:
6c9e813248a01432890c476813d210b8
SHA1 hash:
fd54aa3af58fc3a88cb3fd6753d773cd6c51b7f8
Link:
https://www.unpac.me/results/aec46135-e96e-4667-a313-04dd1fa63397/
SH256 hash:
6b68a556f3e082b574f329319ec26ce19acd8a1860dd95393e0dc188b67ff555
MD5 hash:
f4d1e323103cbfde0bdd8bae9a182111
SHA1 hash:
6bb623e7975594acb5cefeef613c2545d38a0168
Link:
https://www.unpac.me/results/aec46135-e96e-4667-a313-04dd1fa63397/
SH256 hash:
640c647769b22714c9bd5029c10cd5d3c1d863c5320b24911371183e285ebf4e
MD5 hash:
25a897438664cc3d358e0a2ee4a24019
SHA1 hash:
8beab8ce6a22a34df47cdaedbd66b2c071a77705
Link:
https://www.unpac.me/results/aec46135-e96e-4667-a313-04dd1fa63397/
Malware family:
AgentTesla.v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/640c647769b2/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/640c647769b22714c9bd5029c10cd5d3c1d863c5320b24911371183e285ebf4e

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: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 640c647769b22714c9bd5029c10cd5d3c1d863c5320b24911371183e285ebf4e

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/269820/

Comments