MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b285f3b7cffb5e74fb4fd4b7d632fe9f4b1133b6c04be55d7e20cbc38e1b873b. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b285f3b7cffb5e74fb4fd4b7d632fe9f4b1133b6c04be55d7e20cbc38e1b873b
SHA3-384 hash: 261d2136e96c7923b979f8a9dd99f2307665621ac9d392236772585f68a2c0b7c479ba89ee0ee648a24d59da05b81ad6
SHA1 hash: d6422e61929180a7b13a27c63408108745be7a7f
MD5 hash: 38cbd97000d43a9e2303c891dc6a2f99
humanhash: july-gee-vermont-magazine
File name:Bank details.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:635'392 bytes
First seen:2021-09-21 10:16:59 UTC
Last seen:2021-09-21 13:20:35 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:hxIbw8eGGmtiK5okAFneqaGlbwqbWFsjvVQy1jK0fxoRLNW1mDLA0hZes01JGHYC:Abw8eGG+FokWL1lbBiFIQyZxEE1kLfIs
Threatray 10'073 similar samples on MalwareBazaar
TLSH T17DD412267AEE8959C78D3FB9209193807F72BD7A14C2E64D74DDB09D043B3D58E306A2
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
5
# of downloads :
200
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Bank details.exe
Verdict:
Suspicious activity
Analysis date:
2021-09-21 10:19:49 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/e27d945b-1b09-45f9-aa97-80aeb5331c5c

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/189832/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.VFR-1.UNOFFICIAL
Create hunting rule

Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/bd6595a1-f93e-41d9-817c-b5beed011db3
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/854767
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
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 sample
Modifies the hosts 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: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
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 access)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 487199 Sample: Bank details.exe Startdate: 21/09/2021 Architecture: WINDOWS Score: 100 47 Found malware configuration 2->47 49 Multi AV Scanner detection for submitted file 2->49 51 Yara detected AgentTesla 2->51 53 6 other signatures 2->53 6 Bank details.exe 3 2->6         started        10 NXLun.exe 2 2->10         started        12 NXLun.exe 1 2->12         started        process3 file4 27 C:\Users\user\...\Bank details.exe.log, ASCII 6->27 dropped 55 Writes to foreign memory regions 6->55 57 Allocates memory in foreign processes 6->57 59 Injects a PE file into a foreign processes 6->59 14 RegSvcs.exe 2 4 6->14         started        19 RegSvcs.exe 6->19         started        21 RegSvcs.exe 6->21         started        23 conhost.exe 10->23         started        25 conhost.exe 12->25         started        signatures5 process6 dnsIp7 33 uscentral50.myserverhosts.com 174.136.12.72, 49838, 587 ASMALLORANGE1US United States 14->33 29 C:\Users\user\AppData\Roaming\...29XLun.exe, PE32 14->29 dropped 31 C:\Windows\System32\drivers\etc\hosts, ASCII 14->31 dropped 35 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->35 37 Tries to steal Mail credentials (via file access) 14->37 39 Tries to harvest and steal ftp login credentials 14->39 45 3 other signatures 14->45 41 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 19->41 43 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 19->43 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b285f3b7cffb5e74fb4fd4b7d632fe9f4b1133b6c04be55d7e20cbc38e1b873b/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-09-21 10:15:24 UTC
AV detection:
21 of 28 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wkc7hn6p7nphj62p2s35mmx6t5frcm5wybf6kxl6edf4hdq3q45q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
3074df21396eea8b2249995c040407d2d6edb3bbdc50ad46d706c44104f20817
AgentTesla
7ef350d98e3a0e68b3738dd9f4659f5e39cb6787eaf504c3345d3bf6f5aaa294
AgentTesla
ca87f3892de6e488e61c352cafc36fc06d0d8b6eb9fc4d5429ff92038c4b134f
AgentTesla
d27fd6c029cf8ee94e3765d738300478d94ce269c91b27e883b607684a86e393
AgentTesla
f2b1bd47322d3f42b51f60dd6887fd2228ad14d1290f0853f5c20ec62ef14708
AgentTesla
+ 10'063 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/210921-mbdqbahbe2/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Drops file in Drivers directory
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
8e37a5d4b28572fe6d8e13e6f8c7145b1efd4a9bc96ac9a06aa950963b44edef
MD5 hash:
244fd4584d9b5eb9de0337bb192ec530
SHA1 hash:
e5dc0668ea5dc83f6213257cf3a618621f2cc4a8
Link:
https://www.unpac.me/results/8ac159f9-4d75-47b4-a8ca-e03217a09289/
SH256 hash:
a162f28017d32a718bb82e6242cbcaabf2473bd972ea6a0a0bc19da03c088d66
MD5 hash:
456509d159567706505a501898d1e663
SHA1 hash:
da328dede5a9abb3174978a589eee7fb6f3cb936
Link:
https://www.unpac.me/results/8ac159f9-4d75-47b4-a8ca-e03217a09289/
SH256 hash:
81cac8377884b5ad73c60f0a710f02acb240fadb210f4df6987473314b3db91b
MD5 hash:
a32370f1354f9cf68e389a96f6e146cc
SHA1 hash:
cb28a9f20658d39f88a10941b4d06072383d3741
Link:
https://www.unpac.me/results/8ac159f9-4d75-47b4-a8ca-e03217a09289/
SH256 hash:
cac8b347040a359c02ae5e658d3d76230c7dd7eb33505605ed0b9bc49ff268c7
MD5 hash:
71a894ff252c767b80d65ab1e54fda2b
SHA1 hash:
bcc4ff628585ca28b8b0f2c30e63049b910d4d49
Link:
https://www.unpac.me/results/8ac159f9-4d75-47b4-a8ca-e03217a09289/
SH256 hash:
b285f3b7cffb5e74fb4fd4b7d632fe9f4b1133b6c04be55d7e20cbc38e1b873b
MD5 hash:
38cbd97000d43a9e2303c891dc6a2f99
SHA1 hash:
d6422e61929180a7b13a27c63408108745be7a7f
Link:
https://www.unpac.me/results/8ac159f9-4d75-47b4-a8ca-e03217a09289/
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/b285f3b7cffb5e74fb4fd4b7d632fe9f4b1133b6c04be55d7e20cbc38e1b873b

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: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 b285f3b7cffb5e74fb4fd4b7d632fe9f4b1133b6c04be55d7e20cbc38e1b873b

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/189832/

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