MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3b12a35d684a3321084f1c2637f2d467dadd272a68d8318de33c1cdc94c7718e. 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: 5


Intelligence 5 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3b12a35d684a3321084f1c2637f2d467dadd272a68d8318de33c1cdc94c7718e
SHA3-384 hash: 56d3f8b25b1aa44a8e7d4cd2833a26eda8aa8c9a7120e9c37afd74100da00732e1f78dcc080f792be4feccd673dbf359
SHA1 hash: ff5b4d23e65d55271e13a46637d74bfd17ed5e5b
MD5 hash: 0474ebea9210b908499f8213ec824517
humanhash: uniform-asparagus-apart-princess
File name:PO-5A55-12052020,pdf.scr
Download: download sample
Signature AgentTesla
Create hunting rule
File size:630'272 bytes
First seen:2020-05-12 05:47:58 UTC
Last seen:2020-05-12 07:26:12 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:9BB0hwJSwPlQRrdvwE896AuEBaVvRVcHboJwkuReHUGR:wASwPutdk96AQjVcHfkuTGR
Threatray 10'600 similar samples on MalwareBazaar
TLSH ADD4E01CB7AC7D0BF67D17BAC09141C8E2FDD6668406F74F944218E95F0B3A6A9432CA
Reporter abuse_ch
Tags:AgentTesla scr


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: sip1-210.nexcess.net
Sending IP: 209.126.18.174
From: Su-Wei <melchers@melchers.com.tw>
Subject: 紧急命令5A55-12052020
Attachment: PO-5A55-12052020.IMG (contains "PO-5A55-12052020,pdf.scr")

AgentTesla SMTP exfil server:
smtp.privateemail.com:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
84
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.VFL.9021.UNOFFICIAL
Create hunting rule

Gathering data
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-05-12 06:47:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
26 of 31 (83.87%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hmjkgxlijizscccpdqtdp4wum7nn2jzkndmdddpdhqonzfghogha._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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55add5e5138bf35c9ef1a148b681358e4731131a72be0ebed59a28e7f7fd7eaf
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6da9729b89ad6b0aff3f94e20754a9d46185fe0c9076aa950ddf8e4e720e5ef0
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e070c9b84487dcd9290a34f999f51202c1ab7810bbe060a9817d437c9a7840f2
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ee5d2dab2b72605b3d092c5881f8485a26b8725c70a9fb77f733209e30099463
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fc89e8d722a8625e80e22f5a19ef1371e388e1583e55618f2ea2451dfe356845
AgentTesla
+ 10'590 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/201109-6et5a8q332/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Adds Run key to start application
Maps connected drives based on registry
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla Payload
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.

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:Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_w1
Create hunting rule
Author:govcert_ch
Description:Detect Agent Tesla based on common .NET code sequences

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

AgentTesla

img d898a881df1c438e011ee72a4a53d4539361b171da2436ec555c15ba7195f9d2

AgentTesla

Executable exe 3b12a35d684a3321084f1c2637f2d467dadd272a68d8318de33c1cdc94c7718e

(this sample)

  
Dropped by
MD5 a045a28b7ad00d86bcc913ea569ab10b
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 d898a881df1c438e011ee72a4a53d4539361b171da2436ec555c15ba7195f9d2

Comments