MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 16bac81cbed6b7de8ceb6634ea6c5777d2e2f5b255c781a68c47398bb7025ae0. 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: 17


Intelligence 17 IOCs YARA 11 File information Comments

SHA256 hash: 16bac81cbed6b7de8ceb6634ea6c5777d2e2f5b255c781a68c47398bb7025ae0
SHA3-384 hash: fdd3f28626f25d9f54f757351d16724c18d55830b3cb79e6f6c59716c5ffda16ba5f0a4ab476a2d38fd00c8404c28a83
SHA1 hash: 1c8e4db718e20d4beaca8693b3035b31f512e67b
MD5 hash: 87e4e76d8e2df4e2ef4311fb94a6ab5d
humanhash: lima-moon-seven-lamp
File name:IMG-02873009pdf.exe
Download: download sample
Signature AgentTesla
File size:2'069'912 bytes
First seen:2023-08-04 12:55:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 49152:12IaSCoAu/ZjhTtnBGl8qCkvoPqPxE34b:fCoAsheskvoSV
Threatray 37 similar samples on MalwareBazaar
TLSH T166A52913B9479AA2E14557B7C2F715244368EBA13323EE0B754B23A70D433AB4B48F67
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 f6f1b5e6c48eb3c9 (7 x AgentTesla, 1 x RedLineStealer, 1 x Loki)
Reporter lowmal3
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
278
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
IMG-02873009pdf.exe
Verdict:
Malicious activity
Analysis date:
2023-08-04 12:56:58 UTC
Tags:
stealer agenttesla

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

Behaviour
Creating a window
Creating a file in the %AppData% directory
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Сreating synchronization primitives
DNS request
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Query of malicious DNS domain
Sending a TCP request to an infection source
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed 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
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
Found malware configuration
Injects a PE file into a foreign processes
May check the online IP address of the machine
Multi AV Scanner detection for domain / URL
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)
Sample uses string decryption to hide its real strings
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 Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AgentTesla
Yara detected Costura Assembly Loader
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1285732 Sample: IMG-02873009pdf.exe Startdate: 04/08/2023 Architecture: WINDOWS Score: 100 38 Multi AV Scanner detection for domain / URL 2->38 40 Found malware configuration 2->40 42 Antivirus detection for URL or domain 2->42 44 6 other signatures 2->44 6 Uawhkr.exe 5 2->6         started        9 IMG-02873009pdf.exe 1 5 2->9         started        12 Uawhkr.exe 4 2->12         started        process3 file4 46 Multi AV Scanner detection for dropped file 6->46 48 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->48 50 May check the online IP address of the machine 6->50 14 Uawhkr.exe 14 2 6->14         started        26 C:\Users\user\AppData\Roaming\Uawhkr.exe, PE32 9->26 dropped 52 Injects a PE file into a foreign processes 9->52 18 IMG-02873009pdf.exe 15 2 9->18         started        20 IMG-02873009pdf.exe 9->20         started        22 IMG-02873009pdf.exe 9->22         started        24 Uawhkr.exe 12->24         started        signatures5 process6 dnsIp7 28 api.ipify.org 14->28 30 server1.sqsendy.shop 63.250.35.178, 49710, 49712, 49714 NAMECHEAP-NETUS United States 18->30 32 api4.ipify.org 173.231.16.76, 443, 49703, 49711 WEBNXUS United States 18->32 34 api.ipify.org 18->34 36 api.ipify.org 24->36 54 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 24->54 56 Tries to steal Mail credentials (via file / registry access) 24->56 58 Tries to harvest and steal browser information (history, passwords, etc) 24->58 signatures8
Threat name:
Win32.Spyware.Negasteal
Status:
Malicious
First seen:
2023-08-04 10:29:47 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
21 of 38 (55.26%)
Threat level:
  2/5
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 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:
1958b9b5cdf974432e48c7e981afd023cea390e6693d510074d872684ccb3ae3
MD5 hash:
05dc3e584fba8289d9413fbbb14b145b
SHA1 hash:
f9e796838d69b3fc65db7fd6567d63a335316aa7
SH256 hash:
16df7a8ca5495cd2aaf8ac2e975dc048fb69018465ad10b665b87712bbbe79f5
MD5 hash:
59c572cbf108d2af6f582e5caeeae80a
SHA1 hash:
f8ccdc79575813d4f3f9e710800788391a66c6a5
SH256 hash:
1ef4ccfd78a87c8e165c66dd4edde3fa2266b768b0323fc387de521bed5ef125
MD5 hash:
54e530a29705ed683b08e327a8ef2dd9
SHA1 hash:
df3a4f3583c6d933715ba493e82dfe946d735b88
Detections:
AgentTeslaXorStringsNet
SH256 hash:
a93fe676038502d1787714cbe73f7cb043b503bf4556c817a74fca92f40e09b1
MD5 hash:
2a800aacadf21bc54a6b07117443f047
SHA1 hash:
c7ef956981e1ca7b30e1971008ba81229d29cff8
SH256 hash:
16bac81cbed6b7de8ceb6634ea6c5777d2e2f5b255c781a68c47398bb7025ae0
MD5 hash:
87e4e76d8e2df4e2ef4311fb94a6ab5d
SHA1 hash:
1c8e4db718e20d4beaca8693b3035b31f512e67b
Malware family:
AgentTesla.v4
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:AgentTeslaV4
Author:Rony (r0ny_123)
Rule name:INDICATOR_EXE_Packed_GEN01
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:MSIL_SUSP_OBFUSC_XorStringsNet
Author:dr4k0nia
Description:Detects XorStringsNET string encryption, and other obfuscators derived from it
Reference:https://github.com/dr4k0nia/yara-rules
Rule name:msil_susp_obf_xorstringsnet
Author:dr4k0nia
Description:Detects XorStringsNET string encryption, and other obfuscators derived from it
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:PE_Digital_Certificate
Author:albertzsigovits
Rule name:pe_imphash
Rule name:PE_Potentially_Signed_Digital_Certificate
Author:albertzsigovits
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 16bac81cbed6b7de8ceb6634ea6c5777d2e2f5b255c781a68c47398bb7025ae0

(this sample)

  
Delivery method
Distributed via e-mail attachment

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