MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b5acfa6e4c5b96d5f45f98733f8598cffe32b077c5ff413a93ae9c6a30b9a51e. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments

SHA256 hash: b5acfa6e4c5b96d5f45f98733f8598cffe32b077c5ff413a93ae9c6a30b9a51e
SHA3-384 hash: 0ae43f5937626ea45089708ade45c1555cc819c2f26cd60d56330bc3d1e9db4c3b7cc4c503a4bda038b05f4c31a9cd27
SHA1 hash: c751fce9bdf147774758233508d29befc4eb7e92
MD5 hash: c59af6114434440810cf35ff7db35389
humanhash: tango-pasta-florida-wolfram
File name:NIAFkapJ9YwEp3z.exe
Download: download sample
Signature AgentTesla
File size:906'752 bytes
First seen:2022-05-10 03:57:05 UTC
Last seen:2022-05-10 04:38:11 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:jjlANVaSfBt7J0MsNCN1E36GrUMezWBRxjbQYnJvmjX+ns5ybMOf:CVb2Hu1y6GbBLHJOjKoZ
Threatray 17'131 similar samples on MalwareBazaar
TLSH T100159D517248EDFAC829007AC82585F01229AF4BD1A9C71B6496FEDE35B33C3617B94F
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon f26efec4b6c2c00c (24 x AgentTesla, 14 x Loki, 12 x Formbook)
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
266
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
NIAFkapJ9YwEp3z.exe
Verdict:
Malicious activity
Analysis date:
2022-05-10 03:57:35 UTC
Tags:
agenttesla

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Moving of the original file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
fareit obfuscated packed
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.
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Found malware configuration
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Moves itself to temp directory
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)
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 / registry access)
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.Taskun
Status:
Malicious
First seen:
2022-05-10 01:26:17 UTC
File Type:
PE (.Net Exe)
Extracted files:
38
AV detection:
13 of 26 (50.00%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla collection keylogger spyware stealer trojan
Behaviour
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Unpacked files
SH256 hash:
0059c52d9cdc9ab145c371965b4d912cd5c3f3c5933e787cd9edff64cb28728f
MD5 hash:
598afa09d5e84d7a726fd8ac92b45435
SHA1 hash:
a4bc689e28dc2a1d7e9fe7fcabc97a51a52d0ef4
SH256 hash:
753bb6d3f2107a7ed0071a4efa04ddb1a9d09edbeb382020e4d558d46b572048
MD5 hash:
b5911e16822a39925df899d348f05e0f
SHA1 hash:
47690a21ed470fae27fa0e315dbbee4d97dd43ee
SH256 hash:
5a57cbedc270300e7968824fedfc438eac1d03028e4eb2904a8fa29e3b8d4b77
MD5 hash:
cce38f9010597affa707828f09437376
SHA1 hash:
211b266bafde19c3d4dea7cbad53f0c8a48f2142
SH256 hash:
4353ad4a30019e873fe97ed59cf4d9bc9f43b91dbb72ff0716da7fc5095e28ac
MD5 hash:
ab56b1152896276dae225a1e00ebbd1e
SHA1 hash:
155b7f6894e598bf96920dbf4b670d63afd2ff7a
SH256 hash:
b5acfa6e4c5b96d5f45f98733f8598cffe32b077c5ff413a93ae9c6a30b9a51e
MD5 hash:
c59af6114434440810cf35ff7db35389
SHA1 hash:
c751fce9bdf147774758233508d29befc4eb7e92
Malware family:
AgentTesla.v3
Verdict:
Malicious
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:pe_imphash
Rule name:Skystars_Malware_Imphash
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 b5acfa6e4c5b96d5f45f98733f8598cffe32b077c5ff413a93ae9c6a30b9a51e

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment

Comments