MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5b3d2e2924aa88e413b94bb39f5afc3954b78d61f49c4285990969e0b880330f. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5b3d2e2924aa88e413b94bb39f5afc3954b78d61f49c4285990969e0b880330f
SHA3-384 hash: 259ccf84f308b165235290a87bf22d791ba516a3b8c94ddbb18934f3bdd21868e291997563519820be628931af487abb
SHA1 hash: 0f7aa90ab5c57156ef04b43fefe666e182a98714
MD5 hash: 7a4fa64e65e01fd4064f89a95197cb69
humanhash: march-gee-nuts-butter
File name:OFFER.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'006'080 bytes
First seen:2021-10-02 05:55:20 UTC
Last seen:2021-10-04 12:57:55 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:xzTE2a66UbZQTqfmNpwDAum2Rjmp6whC41l:1THi8AqenwDAum2RjyC
Threatray 10'581 similar samples on MalwareBazaar
TLSH T19B25BD394D2686F7D3EEC66CD08C0BCEDAA6A4837B918F1ED495D7C20257B0BE48855C
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
5
# of downloads :
125
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
OFFER.exe
Verdict:
Malicious activity
Analysis date:
2021-10-02 05:58:10 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/9999a31e-13b9-4677-b44e-3a6b0764c61e

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/194105/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1037-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/bf0419eb-9185-4c25-babe-76445262640f
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/863057
Signature
.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 dropped file
Machine Learning detection for sample
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)
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 495481 Sample: OFFER.exe Startdate: 02/10/2021 Architecture: WINDOWS Score: 100 27 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->27 29 Found malware configuration 2->29 31 Multi AV Scanner detection for dropped file 2->31 33 6 other signatures 2->33 7 OFFER.exe 6 2->7         started        process3 file4 19 C:\Users\user\AppData\...\oNRKeNlKvRNGYg.exe, PE32 7->19 dropped 21 C:\Users\user\AppData\Local\...\tmpB910.tmp, XML 7->21 dropped 23 C:\Users\user\AppData\Local\...\OFFER.exe.log, ASCII 7->23 dropped 35 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->35 37 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->37 39 Uses schtasks.exe or at.exe to add and modify task schedules 7->39 41 Injects a PE file into a foreign processes 7->41 11 OFFER.exe 2 7->11         started        15 schtasks.exe 1 7->15         started        signatures5 process6 dnsIp7 25 mail.aldhiyafainteriors.com 199.188.205.66, 49828, 587 NAMECHEAP-NETUS United States 11->25 43 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->43 45 Tries to steal Mail credentials (via file access) 11->45 47 Tries to harvest and steal ftp login credentials 11->47 49 Tries to harvest and steal browser information (history, passwords, etc) 11->49 17 conhost.exe 15->17         started        signatures8 process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5b3d2e2924aa88e413b94bb39f5afc3954b78d61f49c4285990969e0b880330f/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-10-02 03:54:17 UTC
AV detection:
11 of 45 (24.44%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=lm6s4kjevkeoie5zjozz6wx4hfklpdlb6soefbmzbfu6boeagmhq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
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ab68e2437b34af8e6c52602baa89e3bf922a094107f88fb1e9825b45c16ae4c0
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b80c7036c7103ccb917ffe219351bf7e6e4b91421492763fd3ab4918e4d1e1fe
AgentTesla
bd8670ff54fdb88e307e5997213a32ee95f922566923e7a645cbf120094cbbdb
AgentTesla
c03006ce889096c3287e0b33790e10b45b26a376e46bcfb89843f4cc577ca6b9
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d69c941dd2ee95c80b5407a8ec4c97cb907fda4006a0f54012ce199ae4ce8ac7
AgentTesla
+ 10'571 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/211002-gm2cvsdhdr/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
81e3174b56b25e9087d266e61a3ebaf4ce4fac2ea90c58240f0c429847bf380d
MD5 hash:
9293dd54a85335694a9b1fae49631b4f
SHA1 hash:
929f8255962491a8ea38dd5ee295c4497f33be19
Link:
https://www.unpac.me/results/fe726d4a-ef95-4e6c-8794-ff6f35b652d9/
SH256 hash:
f49d9e287426987a9617212fbd09da8a53e3875a998989744006e3da2160ba58
MD5 hash:
0cb8f51712ef5f1477de73a94e52f89e
SHA1 hash:
80bf13d5e71a5e88d1d4643e5caf23360cd2213b
Link:
https://www.unpac.me/results/fe726d4a-ef95-4e6c-8794-ff6f35b652d9/
SH256 hash:
43e38f251dbca9aa20f3470167e5427a7e7a7cdcd25f0b6b045ae8577cd3e345
MD5 hash:
f62ab5d3528d5a3b9e270ea1f9347868
SHA1 hash:
6a74e87711c615adbd9145f829a33f55b7e42dd6
Link:
https://www.unpac.me/results/fe726d4a-ef95-4e6c-8794-ff6f35b652d9/
SH256 hash:
5b3d2e2924aa88e413b94bb39f5afc3954b78d61f49c4285990969e0b880330f
MD5 hash:
7a4fa64e65e01fd4064f89a95197cb69
SHA1 hash:
0f7aa90ab5c57156ef04b43fefe666e182a98714
Link:
https://www.unpac.me/results/fe726d4a-ef95-4e6c-8794-ff6f35b652d9/
Malware family:
Agent Tesla v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/5b3d2e2924aa/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.51
Link:
https://yomi.yoroi.company/submissions/5b3d2e2924aa88e413b94bb39f5afc3954b78d61f49c4285990969e0b880330f

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: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 5b3d2e2924aa88e413b94bb39f5afc3954b78d61f49c4285990969e0b880330f

(this sample)

  
Dropped by
AgentTesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/194105/

Comments