MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1aff1af8cc7bb8d570a97142992b71c34dc24bbe8ae39bbad5ac6dbe974067b1. 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: 16


Intelligence 16 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1aff1af8cc7bb8d570a97142992b71c34dc24bbe8ae39bbad5ac6dbe974067b1
SHA3-384 hash: 7f197d55b0d5d280cfe675784dec3b9c5b4930340ff5ad0243cc8b38f5fce12f6aa2482b551d827d576820646d63d932
SHA1 hash: c3fed2aef4d98a26a989f9147ce284664a1347fc
MD5 hash: c6287a7864c18abcb273e32e3188052d
humanhash: texas-vegan-delta-papa
File name:NBO20-0328.pdf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:660'480 bytes
First seen:2023-10-22 07:40:34 UTC
Last seen:Never
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:NfY1vjJGGna1OHU6HMQNKNJEa4KjB4BQDjDWfvUhvmNV01bstX8KsBo81:NfY1LJ1na1oU6vkZBtDWnYvoV01buuj1
Threatray 354 similar samples on MalwareBazaar
TLSH T138E4124563F8273AC1BE873A656463D01732295C2E33FB179EAC91DB2D67F648240E4B
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon f0d4a26355b2ccf0 (19 x AgentTesla, 6 x Formbook, 2 x SnakeKeylogger)
Reporter abuse_ch
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
285
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
NBO20-0328.pdf.exe
Verdict:
Malicious activity
Analysis date:
2023-10-22 08:48:17 UTC
Tags:
stealer agenttesla
Link:
https://app.any.run/tasks/0a364935-aae5-44f3-84e9-7cc1a491ca78

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.Siggen21.37872.12032.17238.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Restart of the analyzed sample
Adding an exclusion to Microsoft Defender
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control lolbin masquerade packed
Link:
https://www.filescan.io/uploads/6534d219559595e2910997f0/reports/9c68549a-0fca-4a57-8f6c-9c1a2cc1d750/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/1aff1af8cc7bb8d570a97142992b71c34dc24bbe8ae39bbad5ac6dbe974067b1
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/4c1416fe-5a61-44a0-b9a9-fd06fddb13d7
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1329968
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
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
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses an obfuscated file name to hide its real file extension (double extension)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1329968 Sample: NBO20-0328.pdf.exe Startdate: 22/10/2023 Architecture: WINDOWS Score: 100 55 Found malware configuration 2->55 57 Malicious sample detected (through community Yara rule) 2->57 59 Antivirus / Scanner detection for submitted sample 2->59 61 11 other signatures 2->61 7 NBO20-0328.pdf.exe 7 2->7         started        11 jCjoswgcZ.exe 5 2->11         started        13 MmRKwR.exe 2->13         started        15 MmRKwR.exe 2->15         started        process3 file4 51 C:\Users\user\AppData\Roaming\jCjoswgcZ.exe, PE32 7->51 dropped 53 C:\Users\user\AppData\Local\...\tmpC2C7.tmp, XML 7->53 dropped 69 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->69 71 Uses schtasks.exe or at.exe to add and modify task schedules 7->71 73 Adds a directory exclusion to Windows Defender 7->73 17 NBO20-0328.pdf.exe 1 5 7->17         started        21 powershell.exe 22 7->21         started        23 schtasks.exe 1 7->23         started        75 Antivirus detection for dropped file 11->75 77 Multi AV Scanner detection for dropped file 11->77 79 Machine Learning detection for dropped file 11->79 25 jCjoswgcZ.exe 4 11->25         started        27 schtasks.exe 1 11->27         started        81 Injects a PE file into a foreign processes 13->81 29 MmRKwR.exe 13->29         started        31 schtasks.exe 13->31         started        33 MmRKwR.exe 15->33         started        35 schtasks.exe 15->35         started        signatures5 process6 file7 47 C:\Users\user\AppData\Roaming\...\MmRKwR.exe, PE32 17->47 dropped 49 C:\Users\user\...\MmRKwR.exe:Zone.Identifier, ASCII 17->49 dropped 63 Tries to steal Mail credentials (via file / registry access) 17->63 65 Hides that the sample has been downloaded from the Internet (zone.identifier) 17->65 37 conhost.exe 21->37         started        39 conhost.exe 23->39         started        41 conhost.exe 27->41         started        43 conhost.exe 31->43         started        67 Tries to harvest and steal browser information (history, passwords, etc) 33->67 45 conhost.exe 35->45         started        signatures8 process9
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/1aff1af8cc7bb8d570a97142992b71c34dc24bbe8ae39bbad5ac6dbe974067b1
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/1aff1af8cc7bb8d570a97142992b71c34dc24bbe8ae39bbad5ac6dbe974067b1/
Threat name:
ByteCode-MSIL.Trojan.GenSteal
Create hunting rule
Status:
Malicious
First seen:
2023-10-09 02:18:31 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
24 of 38 (63.16%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=dl7rv6gmpo4nk4fjofbjsk3ryng4es56rlrzxowvvrw35f2am6yq._file
Verdict:
malicious
Similar samples:
077017e5f92ab767447cc02a7017d126fc06e048811da11bb3956eac353e576a
AgentTesla
164d54f565cb9285f383bd2bf702123d8db4f32262bac2ab6324ad1975920cb2
AgentTesla
31c199d5367f91b9db1140cf3718a91c569e124d20b5a7121c877d9d19d64075
AgentTesla
5977996d323c55bc5c986f78eac6da795ea114b0ef57d4f062ca618de28daea5
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7896b4cfc3a0bc24a6833164c934053575628c00473e3af848d361a6b8b02ca4
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9661f2075ff6572dcd35ed7fcb74c4ba11771ddba99f230815962a43b90e907d
AgentTesla
b4897fb2b7450804ea184f77c7661b1af8c022c294d69f127e8c1ee47f37ca68
AgentTesla
c47a112d279634c2f0ed20a66b44d3db3c0fcb0936a07f8a133acd06f506eb09
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e217186b19d2e7fe65dd4687398f007dbafd18b745ddf06c784e4bb4d3a7b5ba
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ecade566a9d6d611fe4ee178d686516aad0c5b0af39d07b8e4d9e7900bb3aec8
AgentTesla
+ 344 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/231022-jh5wlaec2t/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Unpacked files
SH256 hash:
dbca819ed273eee045ae76ea70fdcb88fb749a33968286b6e41a80bb68d51b12
MD5 hash:
e2e4f9b04cb3bb24532ebf67ec84a9bb
SHA1 hash:
fff1d531b9a156dfbefd850607cc73c8fe34976e
Link:
https://www.unpac.me/results/6c63ef9c-a3da-4287-be55-8dfc3f000afb/
SH256 hash:
7a49f373d65715c23a6394f7670c27341adc254a24a7cdc0bbfcd30045e8ba95
MD5 hash:
54d2392c39350e222513ddf104a4d9c4
SHA1 hash:
ab1eabb8f5e915b179d4142d4b65b049c007bb3f
Link:
https://www.unpac.me/results/6c63ef9c-a3da-4287-be55-8dfc3f000afb/
SH256 hash:
a8fe3ae5d26f49fb09ef9c63976e1ac24be4358db31fee16431716adf8055c1c
MD5 hash:
09d4ce9d6a5b4fa7616f672c07bde2c6
SHA1 hash:
8752cd5dcb0bbe63c6e80c350e464c9b72cfedce
Detections:
AgentTesla
Create hunting rule
win_agent_tesla_g2
Create hunting rule
Link:
https://www.unpac.me/results/6c63ef9c-a3da-4287-be55-8dfc3f000afb/
Parent samples :
1aff1af8cc7bb8d570a97142992b71c34dc24bbe8ae39bbad5ac6dbe974067b1
8e8d036b62e2c0dca98dd60db67f3d22f019a52fea426ef03fb3d94a3e335890
SH256 hash:
49e52e2016ccd702c3d0d027f03228373391138a856d8ca0a51e35491f960c4f
MD5 hash:
8363606888bf0bfb6b38535517312eb2
SHA1 hash:
2778a4b2289c9d97f105858ba5da50ab2c5ee360
Link:
https://www.unpac.me/results/6c63ef9c-a3da-4287-be55-8dfc3f000afb/
SH256 hash:
1aff1af8cc7bb8d570a97142992b71c34dc24bbe8ae39bbad5ac6dbe974067b1
MD5 hash:
c6287a7864c18abcb273e32e3188052d
SHA1 hash:
c3fed2aef4d98a26a989f9147ce284664a1347fc
Link:
https://www.unpac.me/results/6c63ef9c-a3da-4287-be55-8dfc3f000afb/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/1aff1af8cc7b/report/overview.html
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/1aff1af8cc7bb8d570a97142992b71c34dc24bbe8ae39bbad5ac6dbe974067b1

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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
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 1aff1af8cc7bb8d570a97142992b71c34dc24bbe8ae39bbad5ac6dbe974067b1

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments