MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 37b76e89fcb5bbc28f1984b6bdd58a16e034dc49357dbced7d2aa1a6a25daa17. 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 4 File information Comments

SHA256 hash: 37b76e89fcb5bbc28f1984b6bdd58a16e034dc49357dbced7d2aa1a6a25daa17
SHA3-384 hash: 60f2e012dce74d7b6d4f4db1a97a3d48f222d341e804875f366ad1acc94f65acbb742f1b00790051263358d50a675089
SHA1 hash: 56b20516d595c534fea66e4dc4839ed99154280d
MD5 hash: b3e9703452118c016e8478e598e28836
humanhash: grey-friend-hamper-batman
File name:PO 905987723-24.exe
Download: download sample
Signature AgentTesla
File size:752'128 bytes
First seen:2024-02-01 12:07:16 UTC
Last seen:2024-02-01 16:14:49 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 12288:7lhlfu8liC5ut9r8j8qshDEtUIHvc2/aGZLKOLcsaGercxXwieIr0Fjtu9PAz36+:69r8bshguCvXaerLU1+Xwidr1yGWdr3h
TLSH T1AEF4018AF9608764DC6DA7311836CC3146237C7E91B89A1D7ECE7DBB3EBB9425102847
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon d4c4c4d8ccd4f0c4 (63 x Formbook, 23 x AgentTesla, 8 x RemcosRAT)
Reporter TeamDreier
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
272
Origin country :
DK DK
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
37b76e89fcb5bbc28f1984b6bdd58a16e034dc49357dbced7d2aa1a6a25daa17.exe
Verdict:
Malicious activity
Analysis date:
2024-02-01 12:11:37 UTC
Tags:
agenttesla stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
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.
Result
Threat name:
AgentTesla, PureLog Stealer
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Installs a global keyboard hook
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)
Tries to harvest and steal browser information (history, passwords, etc)
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
Yara detected Generic Downloader
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1384850 Sample: PO_905987723-24.exe Startdate: 01/02/2024 Architecture: WINDOWS Score: 100 29 us2.smtp.mailhostbox.com 2->29 31 api4.ipify.org 2->31 33 api.ipify.org 2->33 49 Found malware configuration 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 Icon mismatch, binary includes an icon from a different legit application in order to fool users 2->53 55 10 other signatures 2->55 7 PO_905987723-24.exe 3 2->7         started        10 NouyJ.exe 3 2->10         started        12 NouyJ.exe 2 2->12         started        signatures3 process4 signatures5 57 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->57 59 Injects a PE file into a foreign processes 7->59 14 PO_905987723-24.exe 16 5 7->14         started        61 Multi AV Scanner detection for dropped file 10->61 63 Machine Learning detection for dropped file 10->63 19 NouyJ.exe 14 2 10->19         started        21 NouyJ.exe 2 12->21         started        23 NouyJ.exe 12->23         started        process6 dnsIp7 35 api4.ipify.org 104.237.62.212, 443, 49707, 49712 WEBNXUS United States 14->35 37 us2.smtp.mailhostbox.com 208.91.199.223, 49709, 49720, 49722 PUBLIC-DOMAIN-REGISTRYUS United States 14->37 25 C:\Users\user\AppData\Roaming\...25ouyJ.exe, PE32 14->25 dropped 27 C:\Users\user\...27ouyJ.exe:Zone.Identifier, ASCII 14->27 dropped 39 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->39 41 Tries to steal Mail credentials (via file / registry access) 14->41 43 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->43 45 Tries to harvest and steal browser information (history, passwords, etc) 21->45 47 Installs a global keyboard hook 21->47 file8 signatures9
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Status:
Malicious
First seen:
2024-01-31 04:24:30 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
19 of 24 (79.17%)
Threat level:
  2/5
Verdict:
malicious
Label(s):
agenttesla_v4 agenttesla
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
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
Looks up external IP address via web service
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:
f5cf2592e521792d3c2536b243e3a85243b1fd7a83fb1dafdab3bce85a8f9df5
MD5 hash:
f51b618603e658228b2256065e758fda
SHA1 hash:
84fd4925bce158e1a3bc1aa874ac2510ef956ef6
SH256 hash:
3014b859be7cafca84f61ab3398e0832d80175d76dc6ff4a45df7b2fef39dcaf
MD5 hash:
17cbde8bc5d57e164c1daa95d1b37d0b
SHA1 hash:
4856da540fd30d018fa511c9ce705871e1e2affa
SH256 hash:
d2cf3273461ffa1b29715828f358368312ae4f08a731f4e449a44f6dc50e26c5
MD5 hash:
df7936d5ea0c80f3003b445c7f8deb44
SHA1 hash:
b995b22e77a11cda256e84a01ccadb85451460ed
SH256 hash:
a7097659d0b8886c761709d7309bf378a7fbc7a325e2d1f4e7a1113698344f4f
MD5 hash:
d5c69b521525fc9e0ad51e65154c63aa
SHA1 hash:
9f9b885250ce857678b0941217f213d9f103f7e0
SH256 hash:
cf4df1120b4646e5c298f62a80544e12b89b1dc6cd9cc97310b2f98982c42f90
MD5 hash:
a5dc3e8471c18518f708147bb4799488
SHA1 hash:
97c2014cbc49f24e35c314db8886e531a0d3e10a
Detections:
AgentTesla win_agent_tesla_g2 INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients Agenttesla_type2 INDICATOR_SUSPICIOUS_Binary_References_Browsers INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients INDICATOR_EXE_Packed_GEN01 INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
SH256 hash:
37b76e89fcb5bbc28f1984b6bdd58a16e034dc49357dbced7d2aa1a6a25daa17
MD5 hash:
b3e9703452118c016e8478e598e28836
SHA1 hash:
56b20516d595c534fea66e4dc4839ed99154280d
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:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
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 37b76e89fcb5bbc28f1984b6bdd58a16e034dc49357dbced7d2aa1a6a25daa17

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments