MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b4c054552d0f43cc104795ddcb504cd3dbe8fe92a01d5e03dcb7363010bf31ba. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b4c054552d0f43cc104795ddcb504cd3dbe8fe92a01d5e03dcb7363010bf31ba
SHA3-384 hash: 48cf1482ac25986ba4e455db1a9fa6cec10310c13f1ead5cba478b9f7eef93e017a28b2f451fc501d4d4e8e6189fb1ca
SHA1 hash: 060bfb89ead4e514d055daf1c766d1f39d4a7268
MD5 hash: 9e080e3520ac487d2149381fd9757d03
humanhash: table-bulldog-salami-floor
File name:BL # SUN2011049.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'225'216 bytes
First seen:2020-12-05 15:18:46 UTC
Last seen:2020-12-05 16:41:59 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:SgjL3jxQJUYS/+xz8pcdfJYb7nXqej7uytsOURF51wEp8CcVhKUtn50GF4Iz/OUY:rvxQmYSpckPkST0sDdxKkeF
Threatray 1'690 similar samples on MalwareBazaar
TLSH FB4519BC7A5071AEE877D67DCAB41C68EA9935B7930B4907A03711DD8B0E943DF900B2
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: lom-logistics.com
Sending IP: 103.99.1.174
From: Hemanth Karthick<docs@lom-logistics.com>
Subject: NEW ORDER: New freight forwarding in Qingdao branch (DMC IMPORT CARGO)
Attachment: BL SUN2011049.rar (contains "BL # SUN2011049.exe")

AgentTesla SMTP exfil server:
mail.akdogulojistik.com:587

Intelligence

File Origin
# of uploads :
3
# of downloads :
323
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
BL # SUN2011049.exe
Verdict:
Malicious activity
Analysis date:
2020-12-05 21:23:47 UTC
Tags:
rat agenttesla
Link:
https://app.any.run/tasks/b633b1bf-ba52-4a09-bece-78bb88d7a357

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/106872/
Detection(s):
SecuriteInfo.com.BehavesLike.Win32.Generic.th.20238.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Launching a process
Creating a process with a hidden window
Result
Gathering data
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/556269
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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
May check the online IP address of the machine
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: Scheduled temp file as task from temp location
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 327235 Sample: BL # SUN2011049.exe Startdate: 05/12/2020 Architecture: WINDOWS Score: 100 54 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->54 56 Found malware configuration 2->56 58 Antivirus detection for dropped file 2->58 60 12 other signatures 2->60 7 BL # SUN2011049.exe 7 2->7         started        11 CsGlckR.exe 2 2->11         started        13 CsGlckR.exe 1 2->13         started        process3 file4 32 C:\Users\user\AppData\Roaming\gJfDXStmd.exe, PE32 7->32 dropped 34 C:\Users\...\gJfDXStmd.exe:Zone.Identifier, ASCII 7->34 dropped 36 C:\Users\user\AppData\Local\...\tmp5574.tmp, XML 7->36 dropped 38 C:\Users\user\...\BL # SUN2011049.exe.log, ASCII 7->38 dropped 62 Writes to foreign memory regions 7->62 64 Allocates memory in foreign processes 7->64 66 Injects a PE file into a foreign processes 7->66 15 RegSvcs.exe 17 4 7->15         started        20 schtasks.exe 1 7->20         started        22 conhost.exe 11->22         started        24 conhost.exe 13->24         started        signatures5 process6 dnsIp7 40 akdogulojistik.com 94.199.200.89, 49758, 587 AEROTEK-ASTR Turkey 15->40 42 mail.akdogulojistik.com 15->42 44 3 other IPs or domains 15->44 28 C:\Users\user\AppData\Roaming\...\CsGlckR.exe, PE32 15->28 dropped 30 C:\Windows\System32\drivers\etc\hosts, ASCII 15->30 dropped 46 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->46 48 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 15->48 50 Tries to steal Mail credentials (via file access) 15->50 52 5 other signatures 15->52 26 conhost.exe 20->26         started        file8 signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b4c054552d0f43cc104795ddcb504cd3dbe8fe92a01d5e03dcb7363010bf31ba/
Threat name:
ByteCode-MSIL.Backdoor.Androm
Create hunting rule
Status:
Malicious
First seen:
2020-12-05 15:19:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
46
AV detection:
17 of 28 (60.71%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wtafivjnb5b4yechsxo4wucm2pn6r7usuaov4a64w43daef7gg5a._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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80d2742ad2aa2b84c5c32278be4a819400da0135ce52389e6ad711539d6ab9d6
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90799ed90f14308c0bf60f347070d57b5d236cb87122ae9988145415428a391b
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baded1a52a51006d751c63ebecdb3ed8f07590a7773f6a40bb4a62b8f8a09210
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d7105dfaf2690af5ecb82d31c891c8b6e36af889ddf4c10af513f4d0efd2d073
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e1f5926510004ac959610023cc41d1af5d9e719c220f6cc81078d9c3a6429923
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e582696b2f3c980a6d81be401fc5da4c24a4b0c490ff6764516a0aa3e3aae23b
AgentTesla
+ 1'680 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
persistence
Link:
https://tria.ge/reports/201205-mwn4k8zsw2/
Behaviour
Creates scheduled task(s)
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
Unpacked files
SH256 hash:
b4c054552d0f43cc104795ddcb504cd3dbe8fe92a01d5e03dcb7363010bf31ba
MD5 hash:
9e080e3520ac487d2149381fd9757d03
SHA1 hash:
060bfb89ead4e514d055daf1c766d1f39d4a7268
Link:
https://www.unpac.me/results/a1a20f64-9a6d-4d74-aeaa-66910cec81ae/
SH256 hash:
9584f6d01e6452371cc9b4828030a13045d99c243c497b63628828e66aabe26f
MD5 hash:
7476e403eef14ac403c63c7279831780
SHA1 hash:
8387f558e30dc115987ac2b5c174a41302471abf
Link:
https://www.unpac.me/results/a1a20f64-9a6d-4d74-aeaa-66910cec81ae/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b4c054552d0f43cc104795ddcb504cd3dbe8fe92a01d5e03dcb7363010bf31ba

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: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 62b31737ee801492bdd676dd65afdd4b0ad305390fe69cae35d696c7c58f0623

AgentTesla

Executable exe b4c054552d0f43cc104795ddcb504cd3dbe8fe92a01d5e03dcb7363010bf31ba

(this sample)

  
Dropped by
MD5 f4c08035e182cc365f04a454816b2701
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/106872/
  
Dropped by
SHA256 62b31737ee801492bdd676dd65afdd4b0ad305390fe69cae35d696c7c58f0623

Comments