MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 efa920373efaa4bd26fb1704e6ea6cb05ed8e91b5e552db7ff2a7764ace07758. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: efa920373efaa4bd26fb1704e6ea6cb05ed8e91b5e552db7ff2a7764ace07758
SHA3-384 hash: ea3c2709ce400cfa62eb181929d6309e825069887714dc95049c0076e7529f573d68322bd41026f45dba9b3eca37e24b
SHA1 hash: 3a71b6a0b1e6bdfbe6b3ed9624f17f504072f068
MD5 hash: 75e1d17c8431d6b7d840fcdfe0dd9a2d
humanhash: mirror-california-uncle-orange
File name:Credit Note.pdf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:581'120 bytes
First seen:2023-02-08 08:55:24 UTC
Last seen:2023-02-10 03:01:29 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 12288:9cBXiEZz7yDne7f4WYMTyPdLX2tuCAe/ZXazVt1Ek6ugpRZN7gNFSxCDH:uRJe7MTyPdLX2tuCAe/ZXazSkKacxC
TLSH T1F0C4C33E69BB57E2C578F97586E18420B5AD83823303D999DDDA2BC0CF0128A7DCE55C
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter cocaman
Tags:AgentTesla exe INVOICE

Intelligence

File Origin
# of uploads :
4
# of downloads :
199
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Credit Note.pdf.exe
Verdict:
Malicious activity
Analysis date:
2023-02-08 08:55:39 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/6ca970d7-37a6-4ca6-85f9-eda088f91410

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/361847/
Detection(s):
SecuriteInfo.com.IL.Trojan.MSILZilla.24792.32201.10946.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Creating a file
Using the Windows Management Instrumentation requests
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
No Threat
Threat level:
  2/10
Confidence:
100%
Tags:
packed shell32.dll
Link:
https://www.filescan.io/uploads/63e363a42d4f6d560e24b1da/reports/d0782403-8d6f-4358-a368-29c5e2f6c871/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/efa920373efaa4bd26fb1704e6ea6cb05ed8e91b5e552db7ff2a7764ace07758
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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/8f3cc9f8-65d2-43cb-86e1-9986e207b77c
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1168582
Signature
.NET source code contains very large strings
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 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)
Sigma detected: Scheduled temp file as task from temp location
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)
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
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 801362 Sample: Credit Note.pdf.exe Startdate: 08/02/2023 Architecture: WINDOWS Score: 100 52 Malicious sample detected (through community Yara rule) 2->52 54 Sigma detected: Scheduled temp file as task from temp location 2->54 56 Multi AV Scanner detection for submitted file 2->56 58 8 other signatures 2->58 7 Credit Note.pdf.exe 6 2->7         started        11 TZiqjCD.exe 5 2->11         started        13 yGbzOMp.exe 2 2->13         started        15 yGbzOMp.exe 1 2->15         started        process3 file4 40 C:\Users\user\AppData\Roaming\TZiqjCD.exe, PE32 7->40 dropped 42 C:\Users\user\AppData\Local\...\tmpAD7C.tmp, XML 7->42 dropped 44 C:\Users\user\...\Credit Note.pdf.exe.log, ASCII 7->44 dropped 72 Writes to foreign memory regions 7->72 74 Injects a PE file into a foreign processes 7->74 17 RegSvcs.exe 2 4 7->17         started        22 schtasks.exe 1 7->22         started        24 conhost.exe 7->24         started        76 Multi AV Scanner detection for dropped file 11->76 78 Machine Learning detection for dropped file 11->78 26 RegSvcs.exe 11->26         started        28 schtasks.exe 1 11->28         started        30 conhost.exe 13->30         started        32 conhost.exe 15->32         started        signatures5 process6 dnsIp7 46 mail.ppecindia.com 50.87.154.175, 49695, 49698, 587 UNIFIEDLAYER-AS-1US United States 17->46 48 192.168.2.1 unknown unknown 17->48 50 windowsupdatebg.s.llnwi.net 17->50 38 C:\Users\user\AppData\Roaming\...\yGbzOMp.exe, PE32 17->38 dropped 60 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 17->60 62 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 17->62 64 Tries to steal Mail credentials (via file / registry access) 17->64 66 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 17->66 34 conhost.exe 22->34         started        68 Tries to harvest and steal browser information (history, passwords, etc) 26->68 70 Hides that the sample has been downloaded from the Internet (zone.identifier) 26->70 36 conhost.exe 28->36         started        file8 signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/efa920373efaa4bd26fb1704e6ea6cb05ed8e91b5e552db7ff2a7764ace07758/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-02-06 02:17:53 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
19 of 39 (48.72%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=56usanz67ksl2jx3c4con2tmwbpnr2i3lzks3n77fj3wjlhao5ma._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/230208-kv19lshc7z/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Checks computer location settings
AgentTesla
Unpacked files
SH256 hash:
5761e6bd38dbb0cb7ccbe165b40228f209b74736653ad2680b3524278c0513f3
MD5 hash:
ebb3fec52ca6845cd5b5300cb3ad7523
SHA1 hash:
76d693031ff74249ae443905a0b3402d4ec6debd
Link:
https://www.unpac.me/results/353ba156-05ed-4353-986c-9ff1b5402794/
SH256 hash:
efa920373efaa4bd26fb1704e6ea6cb05ed8e91b5e552db7ff2a7764ace07758
MD5 hash:
75e1d17c8431d6b7d840fcdfe0dd9a2d
SHA1 hash:
3a71b6a0b1e6bdfbe6b3ed9624f17f504072f068
Link:
https://www.unpac.me/results/353ba156-05ed-4353-986c-9ff1b5402794/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/efa920373efa/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/efa920373efaa4bd26fb1704e6ea6cb05ed8e91b5e552db7ff2a7764ace07758

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

tar c4a1d021cc3f56cde4c663b53028e21920dcf03bad74f0f842c048d9bd3d205c

AgentTesla

Executable exe efa920373efaa4bd26fb1704e6ea6cb05ed8e91b5e552db7ff2a7764ace07758

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 c4a1d021cc3f56cde4c663b53028e21920dcf03bad74f0f842c048d9bd3d205c
  
Dropped by
SHA256 28de18cf90f5beb1eacb1250791b85f689ac9df67c85578f6d62adcb46fe35a1
Cape
Cape
https://www.capesandbox.com/analysis/361847/
  
Dropped by
MD5 03d6111b38a02d8d3416d04f660b6d8d
  
Dropped by
MD5 c4450dc642eeb865077f02e64730ceeb

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