MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a1520040a9646ea2582d5b6ec7ddb720de8195473675a768a60659ec277101dc. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a1520040a9646ea2582d5b6ec7ddb720de8195473675a768a60659ec277101dc
SHA3-384 hash: 95239a0764ffea7ed9a5becc0c66b9e3ecb052146ea60b0b1eaeae0583081c5d247a7dbbe8733263821c2e70bb32320d
SHA1 hash: 9fad72530e98734aa913b36a69b963a91eefac13
MD5 hash: 0f4064452757c9830209d116580adc54
humanhash: potato-sodium-alabama-north
File name:MACHINE SPECIFICATION.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:778'240 bytes
First seen:2021-07-27 12:08:02 UTC
Last seen:2021-07-30 09:31:50 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:pO2PU9CPU9FcT9FBgb9OsBgo0q4wMy9wkfh8GqwWatS1OFThENCaQvwK20Sf:pOJb9OsBgo0q4wMy98G7WaSO/ENNYwDB
Threatray 7'414 similar samples on MalwareBazaar
TLSH T1DEF4CFE4153C7B0FF0AF1BBE907040229BF0509BC969DBE4FF7215E6AF162972152686
Reporter lowmal3
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
4
# of downloads :
202
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
MACHINE SPECIFICATION.exe
Verdict:
Malicious activity
Analysis date:
2021-07-27 12:09:58 UTC
Tags:
keylogger stealer agenttesla
Link:
https://app.any.run/tasks/9a030768-c655-4d4f-9255-f9a9aa7d51f4

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/174338/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.953-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Result
Verdict:
UNKNOWN
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/2cbefe85-76b9-46f7-8c06-ecfe583eb862
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/822328
Signature
.NET source code contains very large array initializations
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
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)
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 454740 Sample: MACHINE SPECIFICATION.exe Startdate: 27/07/2021 Architecture: WINDOWS Score: 100 37 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->37 39 Found malware configuration 2->39 41 Multi AV Scanner detection for submitted file 2->41 43 6 other signatures 2->43 6 MACHINE SPECIFICATION.exe 3 2->6         started        10 newapp.exe 3 2->10         started        12 newapp.exe 2 2->12         started        process3 file4 21 C:\Users\...\MACHINE SPECIFICATION.exe.log, ASCII 6->21 dropped 45 Injects a PE file into a foreign processes 6->45 14 MACHINE SPECIFICATION.exe 17 9 6->14         started        47 Multi AV Scanner detection for dropped file 10->47 49 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 10->49 51 Machine Learning detection for dropped file 10->51 53 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 10->53 19 newapp.exe 2 10->19         started        signatures5 process6 dnsIp7 27 ftp.avonpharmacmachines.com 67.220.187.210, 21, 49742, 49743 24SHELLSUS United States 14->27 23 C:\Users\user\AppData\Roaming\...\newapp.exe, PE32 14->23 dropped 25 C:\Users\user\...\newapp.exe:Zone.Identifier, ASCII 14->25 dropped 29 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->29 31 Tries to steal Mail credentials (via file access) 14->31 33 Tries to harvest and steal ftp login credentials 14->33 35 3 other signatures 14->35 file8 signatures9
Gathering data
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-07-27 09:11:38 UTC
AV detection:
17 of 28 (60.71%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ufjaaqfjmrxkewbnlnxmpxnxedpidfkhgz22o2fgazm6yj3rahoa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
12885b0462e6977afc7c42d03c8e039a5df25f70b610177b8e02f6642847584b
AgentTesla
3be787bec6c661048c534c126761c2be937e70cb5ce8f1922cca5f4f22106b54
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8222a6d72ea0c8cbf308030b5215108f1e4d2549fd88f7a31ef5a905e9070ae6
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8586940b285a92802ff9ca77ab7fb949de2a24784d4724dc18ce6d9c1ad6f187
AgentTesla
9a8d62fa3b66f6afa63911f0e456899199f80686435ac3253a18214ed27460c2
AgentTesla
c076fb8aa8701a1255fad0401bc4d812fad82a0835fd2f95b9d7ade3fe9abec1
AgentTesla
d022b7b48419dbef83e9d084602cbb5b10566d193db01248a72be46251669a97
AgentTesla
d0c624c824be16ad8dc2a5a55fad2667a93e23e022865d74f3d90fe78ee6fb00
AgentTesla
e2a4c088ef95e4dd8cf75d4a3324d043e4b2bc294a3bfd421c2fb285c1decb5b
AgentTesla
+ 7'404 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/210727-f984r5wgtx/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla Payload
CustAttr .NET packer
AgentTesla
Unpacked files
SH256 hash:
91c3e8af682a3257cd594534b87d935bffc0e5512d234505e5cc42f416461694
MD5 hash:
a4c2f861ab7f98f89c9a6ac8070c3c8b
SHA1 hash:
75ebb71739da352e366dd74cb9027277d6639c54
Link:
https://www.unpac.me/results/7c5c065e-69b7-459f-b9b9-d84234724ff1/
SH256 hash:
e7ea7b605d78ab9cbc81e28e7a87483ea85098303ddaeef5493167b9e176b264
MD5 hash:
c09bc331c24253dc048de5f8b68f649e
SHA1 hash:
6347fd88b4c6dca499398dd4ada5482ccbb40819
Link:
https://www.unpac.me/results/7c5c065e-69b7-459f-b9b9-d84234724ff1/
SH256 hash:
97d2fa1d01b2f9a2199896e05e0cf60c14a9f41ef2d72e15fbb862b7afa08438
MD5 hash:
68463851c0e6fe7a254c99fae763d454
SHA1 hash:
4587a5371d88c296a0184fe47ee0c5245b187127
Link:
https://www.unpac.me/results/7c5c065e-69b7-459f-b9b9-d84234724ff1/
SH256 hash:
fbfc8461c68dd5ea60e8bb04ebdd6c0b0e005cdfb20db1808df3e005fb1ed25f
MD5 hash:
66c029203cd119b0097a081388679f52
SHA1 hash:
2a879d9d6a119982ea5078a83b101bacb6912830
Link:
https://www.unpac.me/results/7c5c065e-69b7-459f-b9b9-d84234724ff1/
SH256 hash:
a1520040a9646ea2582d5b6ec7ddb720de8195473675a768a60659ec277101dc
MD5 hash:
0f4064452757c9830209d116580adc54
SHA1 hash:
9fad72530e98734aa913b36a69b963a91eefac13
Link:
https://www.unpac.me/results/7c5c065e-69b7-459f-b9b9-d84234724ff1/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.48
Link:
https://yomi.yoroi.company/submissions/a1520040a9646ea2582d5b6ec7ddb720de8195473675a768a60659ec277101dc

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: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 a1520040a9646ea2582d5b6ec7ddb720de8195473675a768a60659ec277101dc

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/174338/

Comments