MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b58eb9f913645c1e2631a20171e1c59b9d745e1aec32bca0debc2357e1920743. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b58eb9f913645c1e2631a20171e1c59b9d745e1aec32bca0debc2357e1920743
SHA3-384 hash: adbd7b3ea69faccbe4aed1e94299a7b8e0f5244f92207098b50c57896c329b698e1060ad1897bbfe24f3be5737170622
SHA1 hash: 4d524e3db8694e19bac7ccd445b8bcbfb0a7fd3b
MD5 hash: f8fd0fd419e762f9f426fbc242fb90c8
humanhash: foxtrot-lion-kansas-carolina
File name:updated soa 2022.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:600'576 bytes
First seen:2022-01-25 06:51:50 UTC
Last seen:Never
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:b/hjApDLTh6BZUPY4ZKUwu1PeYc8aOSKFExjTug:b/hjAJL2ZUpwu1Ppc8xScEf
Threatray 14'025 similar samples on MalwareBazaar
TLSH T135D4DF353A369A01CD6FE6B42733D27C4F64BE6AA197E3B805D47C2738F5742864A123
File icon (PE):PE icon
dhash icon 00b3f2e2b6a6e200 (3 x AgentTesla)
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
164
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/222170/
Detection(s):
SecuriteInfo.com.Variant.Kryptic.18.6822.4838.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Сreating synchronization primitives
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated packed replace.exe
Link:
https://www.filescan.io/uploads/61ef9e160f8c757253e56bbe/reports/b7b753a5-c092-40c6-b836-83a1b223e38e/overview
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c1ff5096-bab6-478c-90a1-7252eb2085c5
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/926795
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
.NET source code contains very large strings
Allocates memory in foreign processes
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)
Sigma detected: Suspicius Add Task From User AppData Temp
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
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 559273 Sample: updated soa 2022.exe Startdate: 25/01/2022 Architecture: WINDOWS Score: 100 45 Found malware configuration 2->45 47 Multi AV Scanner detection for dropped file 2->47 49 Multi AV Scanner detection for submitted file 2->49 51 10 other signatures 2->51 7 updated soa 2022.exe 6 2->7         started        11 tKZVPq.exe 2 2->11         started        13 tKZVPq.exe 1 2->13         started        process3 file4 27 C:\Users\user\AppData\...\bOAptRujGSaC.exe, PE32 7->27 dropped 29 C:\Users\user\AppData\Local\...\tmp6DE9.tmp, XML 7->29 dropped 31 C:\Users\user\...\updated soa 2022.exe.log, ASCII 7->31 dropped 53 Writes to foreign memory regions 7->53 55 Allocates memory in foreign processes 7->55 57 Injects a PE file into a foreign processes 7->57 15 RegSvcs.exe 2 4 7->15         started        19 schtasks.exe 1 7->19         started        21 conhost.exe 11->21         started        23 conhost.exe 13->23         started        signatures5 process6 file7 33 C:\Users\user\AppData\Roaming\...\tKZVPq.exe, PE32 15->33 dropped 35 C:\Windows\System32\drivers\etc\hosts, ASCII 15->35 dropped 37 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 15->37 39 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 15->39 41 Modifies the hosts file 15->41 43 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->43 25 conhost.exe 19->25         started        signatures8 process9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b58eb9f913645c1e2631a20171e1c59b9d745e1aec32bca0debc2357e1920743/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-01-25 05:53:28 UTC
File Type:
PE (.Net Exe)
Extracted files:
22
AV detection:
25 of 43 (58.14%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wwhlt6itmrob4jrruiaxdyoftooxixq25qzlzig6xqrvpymsa5bq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
12bfe1ec8585783c0d21beafa4b9c319cffdf039a9bbf3a9582f9a3d441df03c
AgentTesla
440ea2ee8ce0040d8915262110fc3a99d3970f1da78c162edc86e2b25c50a579
AgentTesla
4e1310dcbe61956354f58b7a45254e17974d431691e4eb21aebe8fcf92b8ef34
AgentTesla
4fb64ce7d358d24f8f6feb96dd1e0fb56b8899b008d80a0ea7754a1aff50c793
AgentTesla
8a327800ffb60ec64017091fe873d8416fc8aa6c0a33c866b36394465e6ae25e
AgentTesla
8cad477be21ea2016f1d334a68127e195aa48ef0717e45cac715e7a5f67d30c9
AgentTesla
a2655dc19c1fbba64ea94b3de86d8cbe1ad1e8bdf0ef1234fd5717f6feae61f2
AgentTesla
+ 14'015 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/220125-hm325aafdq/
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
Adds Run key to start application
Drops file in Drivers directory
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
a1673b7001184d45f1669b79c23d0af109ce788c6d002469e68b89de53e90550
MD5 hash:
f7147c12319f6f5db9181e5e7df6409c
SHA1 hash:
8b0dc0f664293104d17d65e52d984cb4b4c39482
Link:
https://www.unpac.me/results/59c14001-b748-461f-8aa3-5a076b04af35/
SH256 hash:
79823e47436e129def4fba8ee225347a05b7bb27477fb1cc8be6dc9e9ce75696
MD5 hash:
39f524c1ab0eb76dfd79b2852e5e8c39
SHA1 hash:
428018e1701006744e34480b0029982a76d8a57d
Link:
https://www.unpac.me/results/59c14001-b748-461f-8aa3-5a076b04af35/
SH256 hash:
58faae9ab1117a41892996efb456f5a625791a9f41c7d1174032fa215b5e799c
MD5 hash:
434d0f86f32213c7b76f9c9024ccbe38
SHA1 hash:
2342fc3dec4ac6b1e5c66fcfc70d88a36d01bdce
Link:
https://www.unpac.me/results/59c14001-b748-461f-8aa3-5a076b04af35/
SH256 hash:
b58eb9f913645c1e2631a20171e1c59b9d745e1aec32bca0debc2357e1920743
MD5 hash:
f8fd0fd419e762f9f426fbc242fb90c8
SHA1 hash:
4d524e3db8694e19bac7ccd445b8bcbfb0a7fd3b
Link:
https://www.unpac.me/results/59c14001-b748-461f-8aa3-5a076b04af35/
Malware family:
Agent Tesla v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/b58eb9f91364/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/b58eb9f913645c1e2631a20171e1c59b9d745e1aec32bca0debc2357e1920743

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 b58eb9f913645c1e2631a20171e1c59b9d745e1aec32bca0debc2357e1920743

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/222170/

Comments