MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c57c8d4d2e724683791c90f26d4499886ab0498688740b5433e1c4a36680564e. 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: 9


Intelligence 9 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c57c8d4d2e724683791c90f26d4499886ab0498688740b5433e1c4a36680564e
SHA3-384 hash: 735e2d524b1ada5ceac9d2a29a0c8ad364ab16b212cee4f06f3f0a4a02a37b0076004b83597195669afaf2b79a1b0b9e
SHA1 hash: 94fc2bc720e88f5f1bcab268fd441c3f640d63c3
MD5 hash: a5640ac4a8b294df8ced6dfd0ca544f3
humanhash: timing-enemy-queen-football
File name:bank account.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:798'720 bytes
First seen:2021-07-28 09:26:44 UTC
Last seen:2021-07-30 07:32:36 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:eTfMnM2iNv4sDFremgK+gxYdUwW+2FMkBZhnmZF4:O6M1usBremd+gxYY+2FMkcZF4
Threatray 7'488 similar samples on MalwareBazaar
TLSH T17005E517672F06B3DB28A37681069DC4A9B0DD8363C8DF1B768AB67A49351120C5FD2F
dhash icon 6cc292e28a8abad4 (2 x AgentTesla)
Reporter cocaman
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
5
# of downloads :
130
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
bank account.exe
Verdict:
Malicious activity
Analysis date:
2021-07-28 09:29:14 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/5484b077-39d3-4586-9927-0b3b70ca630b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/174605/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/7a96cbe2-7b6c-4f0b-8ed6-25ef8c964a3e
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/822978
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Modifies the hosts file
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 455390 Sample: bank account.exe Startdate: 28/07/2021 Architecture: WINDOWS Score: 100 47 Found malware configuration 2->47 49 Multi AV Scanner detection for dropped file 2->49 51 Multi AV Scanner detection for submitted file 2->51 53 11 other signatures 2->53 7 bank account.exe 6 2->7         started        10 hgvQCmQ.exe 5 2->10         started        13 hgvQCmQ.exe 2 2->13         started        process3 file4 31 C:\Users\user\AppData\...\IVNmTSJGrzid.exe, PE32 7->31 dropped 33 C:\Users\user\AppData\Local\...\tmpA621.tmp, XML 7->33 dropped 35 C:\Users\user\...\bank account.exe.log, ASCII 7->35 dropped 15 bank account.exe 2 5 7->15         started        19 schtasks.exe 1 7->19         started        21 bank account.exe 7->21         started        55 Multi AV Scanner detection for dropped file 10->55 57 Machine Learning detection for dropped file 10->57 59 Injects a PE file into a foreign processes 10->59 23 schtasks.exe 1 10->23         started        25 hgvQCmQ.exe 10->25         started        signatures5 process6 file7 37 C:\Users\user\AppData\Roaming\...\hgvQCmQ.exe, PE32 15->37 dropped 39 C:\Windows\System32\drivers\etc\hosts, ASCII 15->39 dropped 41 C:\Users\user\...\hgvQCmQ.exe:Zone.Identifier, ASCII 15->41 dropped 43 Modifies the hosts file 15->43 45 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->45 27 conhost.exe 19->27         started        29 conhost.exe 23->29         started        signatures8 process9
Gathering data
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-07-28 05:31:19 UTC
File Type:
PE (.Net Exe)
Extracted files:
26
AV detection:
12 of 46 (26.09%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=yv6i2tjoojdig6i4sdzg2rezrbvlasmgrb2awvbt4hckgzuakzha._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
0663ffc968c7a2870e7c3234b4c2c2c5bae705a12a1f84ff4527af8d8b9466e5
AgentTesla
112f248bd983696a69465381b2ddadd26bb41419c649b54afd83db67bef21e37
AgentTesla
5defd50046db301c82c85cc8306960982f576cbf5446f24062cc570dcf0becec
AgentTesla
69f4101e63fdfdec4a5b6fc4a778619a69f9511416dd90fe9df33502ff8d9d4f
AgentTesla
80bd30aa05237c35c46fc461f06d04b3a5b4ae90380287125ad011a605ef6298
AgentTesla
996c7d7177a30556d65872fdff745dd5adcfd6742dea6f71318e8cbc7d4cca26
AgentTesla
c57c8d4d2e724683791c90f26d4499886ab0498688740b5433e1c4a36680564e
AgentTesla
cb145909667bd181409f1e14b6b2fd00ec9f8894ffaba82bd2b1888065e6a22a
AgentTesla
d7550aca865eea83340a162a23a30ee5475147eb99a86fe08c3ac404ddda8400
AgentTesla
+ 7'478 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210728-dg7wa5nwmn/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Drops file in Drivers directory
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
c362729899c5956cfa9fc3bcf9b21ac72066a1b84a497ceb1281f76e2f55c54b
MD5 hash:
0327d1374a5ce015ad9c83c5de76e823
SHA1 hash:
e521349d9e96a4191248747c42c78b6f88fc8f63
Link:
https://www.unpac.me/results/95ca553c-37a2-4cd4-adcb-8c1f2ed652bb/
SH256 hash:
25bd093d6ae8a7d984ce5721eae28c5aa178cf3902e9859cdb91d028d8b6ea48
MD5 hash:
89954c3087d714fbba38e3f11d44c49d
SHA1 hash:
c10dc831b60ac312d8ecf5370fc0f8d45211a3a5
Link:
https://www.unpac.me/results/95ca553c-37a2-4cd4-adcb-8c1f2ed652bb/
SH256 hash:
0762ce563abf0d264354c188254aec95ba9414a67878493b4ec1f8c932bc31b8
MD5 hash:
509e2c707526226a72714d089874d10a
SHA1 hash:
7408bca397eb63a8c7e7a3c63d2c666ed6fa5b0f
Link:
https://www.unpac.me/results/95ca553c-37a2-4cd4-adcb-8c1f2ed652bb/
SH256 hash:
c57c8d4d2e724683791c90f26d4499886ab0498688740b5433e1c4a36680564e
MD5 hash:
a5640ac4a8b294df8ced6dfd0ca544f3
SHA1 hash:
94fc2bc720e88f5f1bcab268fd441c3f640d63c3
Link:
https://www.unpac.me/results/95ca553c-37a2-4cd4-adcb-8c1f2ed652bb/
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/c57c8d4d2e724683791c90f26d4499886ab0498688740b5433e1c4a36680564e

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:ach_AgentTesla_20200929
Create hunting rule
Author:abuse.ch
Description:Detects AgentTesla PE
Rule name:AgentTeslaV3
Create hunting rule
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:MALWARE_Win_AgentTeslaV3
Create hunting rule
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_agent_tesla_v1
Create hunting rule
Author:Johannes Bader @viql
Description:detects Agent Tesla

File information

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

Malspam

AgentTesla

rar 804bbe01939efa8390005721104163523d0c3e04c2eab8176e07f96674140245

AgentTesla

Executable exe c57c8d4d2e724683791c90f26d4499886ab0498688740b5433e1c4a36680564e

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 804bbe01939efa8390005721104163523d0c3e04c2eab8176e07f96674140245
  
Dropped by
SHA256 70c5e83dfedc26743c4be5da2c626a00cde94f9926d91d01360801598f58f4f1
Cape
Cape
https://www.capesandbox.com/analysis/174605/

Comments