MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ac40890fee93449d900fd2248ffc6d12e807546d3c39fc40f38d8dc791a49ad5. 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: 14


Intelligence 14 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ac40890fee93449d900fd2248ffc6d12e807546d3c39fc40f38d8dc791a49ad5
SHA3-384 hash: 1d5bc9527cf16aad3a21845be6dfc1dbdf7d013bfd38fff9fed7f965ca3a96c360d11a7d1abb5c60553e5da193a2dab3
SHA1 hash: c24551e74722e1f86c2676f45299bf4aa3599a44
MD5 hash: 70055279ab7c00897209e054482856aa
humanhash: solar-ink-kansas-foxtrot
File name:new offer 120222_xls.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:891'904 bytes
First seen:2022-02-17 22:17:59 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:LkHtsEWZSEA+AlNPlHC6yoD7ZNQcBmde8UQlsd:L6tboxABbs8735mTsd
TLSH T16315BF5631EF1096C362EBF20FD8BCBF869AF173160F753935816B968366E508902376
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
300
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/242398/
Detection(s):
SecuriteInfo.com.Trojan.Siggen16.57439.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
fareit formbook obfuscated packed
Link:
https://www.filescan.io/uploads/620ec99f875593a3cce0a696/reports/83f4f126-151f-4fbc-a06c-c812c9525b87/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.
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a1a66340-7aa1-4a96-82a1-1f53b420c6f1
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/941940
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
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
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)
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 574418 Sample: new offer 120222_xls.exe Startdate: 17/02/2022 Architecture: WINDOWS Score: 100 20 Found malware configuration 2->20 22 Malicious sample detected (through community Yara rule) 2->22 24 Multi AV Scanner detection for submitted file 2->24 26 9 other signatures 2->26 6 new offer 120222_xls.exe 3 2->6         started        process3 file4 18 C:\Users\...\new offer 120222_xls.exe.log, ASCII 6->18 dropped 28 Injects a PE file into a foreign processes 6->28 10 new offer 120222_xls.exe 2 6->10         started        12 new offer 120222_xls.exe 6->12         started        14 new offer 120222_xls.exe 6->14         started        16 new offer 120222_xls.exe 6->16         started        signatures5 process6
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ac40890fee93449d900fd2248ffc6d12e807546d3c39fc40f38d8dc791a49ad5/
Threat name:
ByteCode-MSIL.Backdoor.NanoCore
Create hunting rule
Status:
Malicious
First seen:
2022-02-17 22:18:13 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
22 of 28 (78.57%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=vraisd7osncj3eap2isi77dncluaovdnhq47yqhtrwg4penetlkq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger spyware stealer trojan
Link:
https://tria.ge/reports/220217-17x1qafbb6/
Behaviour
Checks processor information in registry
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Drops file in Windows directory
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
8af22fcc225084bf7e6911d4cd96f47fadacc986c4a8a01d27bd00c4cbe3cbeb
MD5 hash:
c4ec96b077fc3b136442325bc4aaaac5
SHA1 hash:
ed507321e748d735601a12a2c4e512be28be51d9
Link:
https://www.unpac.me/results/e475759b-fa9a-4aa7-b232-0dfad8782b51/
SH256 hash:
9dcaa6b03c24d84addfbacda2b3fb74c04c9ee1b18ea43c09e15c1247dc4a533
MD5 hash:
54a52ac7d270f03029e734ba38e6c697
SHA1 hash:
75bacf9fb5e590d10186c2c60280a78b28e0c801
Link:
https://www.unpac.me/results/e475759b-fa9a-4aa7-b232-0dfad8782b51/
SH256 hash:
21043fa0c6cf7af73c8c52d7175a50257cb1ed5b6e3c90e98937a2f6c889d2ed
MD5 hash:
a8a68a132c721dfac123fd8cbf41e0ae
SHA1 hash:
6a42a0772676e11920cc8706a9fee3a4e5f9dd09
Link:
https://www.unpac.me/results/e475759b-fa9a-4aa7-b232-0dfad8782b51/
SH256 hash:
a39f4ebc3c842eb681eea54f813b3b4089fb7889a3e493b0f89d28736dd0e71d
MD5 hash:
04e56d70431e528664c4e0be2b62b3f5
SHA1 hash:
4f6a46b2ab5f8b5bb08fa08d735edab3ca7f462e
Link:
https://www.unpac.me/results/e475759b-fa9a-4aa7-b232-0dfad8782b51/
SH256 hash:
ac40890fee93449d900fd2248ffc6d12e807546d3c39fc40f38d8dc791a49ad5
MD5 hash:
70055279ab7c00897209e054482856aa
SHA1 hash:
c24551e74722e1f86c2676f45299bf4aa3599a44
Link:
https://www.unpac.me/results/e475759b-fa9a-4aa7-b232-0dfad8782b51/
Malware family:
Agent Tesla v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/ac40890fee93/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/ac40890fee93449d900fd2248ffc6d12e807546d3c39fc40f38d8dc791a49ad5

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

Executable exe ac40890fee93449d900fd2248ffc6d12e807546d3c39fc40f38d8dc791a49ad5

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/242398/

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