MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8ac1f7de055ec36e94804c99cf51741ec440b128e92f9a721749802e1204a0dc. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8ac1f7de055ec36e94804c99cf51741ec440b128e92f9a721749802e1204a0dc
SHA3-384 hash: 87306b42043b005ab13799a45bb4be0f3b705d5eba2ca63707607bd966ac01eeb88994073f6a88b46116fe47bc93330f
SHA1 hash: ea2b41ba0965aa7ec1431e95ba5cfa0e425bab8b
MD5 hash: 46932de3d79b8b31004320d4a8900ece
humanhash: mountain-double-diet-nevada
File name:#087file.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:648'192 bytes
First seen:2022-11-24 23:17:39 UTC
Last seen:2022-11-25 00:46:52 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 12288:DVmDMEsPCABfUnfmwvVDCXhSRld2jpnwW/NkhsDiCmHQswWwqoRsVTVn:h+sPCuUhDDlYuLyEHQsDtoRwF
TLSH T1BFD4E03172579A13C3BD0E75C1D6452093F2CA125622EA4B6FF4C1981D17BC3AF9AF8A
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 Anonymous
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
209
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
#087file.exe
Verdict:
Malicious activity
Analysis date:
2022-11-24 23:18:49 UTC
Tags:
agenttesla
Link:
https://app.any.run/tasks/a7d3167c-66bf-4dbf-a167-9daabd5252ab

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/338222/
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.295.18674.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/637ffbac090ea3f04934869a/reports/be2cb873-55ab-4afd-be63-ca547e38929e/overview
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:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/52450e2f-17cb-4ec8-bba6-38b4af7906fe
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1120771
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains very large array initializations
.NET source code references suspicious native API functions
Hides that the sample has been downloaded from the Internet (zone.identifier)
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)
Snort IDS alert for network traffic
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)
Uses the Telegram API (likely for C&C communication)
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 753488 Sample: #087file.exe Startdate: 25/11/2022 Architecture: WINDOWS Score: 100 41 Snort IDS alert for network traffic 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 Multi AV Scanner detection for submitted file 2->45 47 9 other signatures 2->47 6 #087file.exe 3 2->6         started        10 yGbzOMp.exe 2 2->10         started        12 yGbzOMp.exe 3 2->12         started        process3 file4 23 C:\Users\user\AppData\...\#087file.exe.log, ASCII 6->23 dropped 49 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->49 51 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 6->51 53 Injects a PE file into a foreign processes 6->53 14 #087file.exe 17 6 6->14         started        19 yGbzOMp.exe 14 3 10->19         started        55 Multi AV Scanner detection for dropped file 12->55 57 Machine Learning detection for dropped file 12->57 21 yGbzOMp.exe 2 12->21         started        signatures5 process6 dnsIp7 29 api.telegram.org 149.154.167.220, 443, 49695, 49696 TELEGRAMRU United Kingdom 14->29 25 C:\Users\user\AppData\Roaming\...\yGbzOMp.exe, PE32 14->25 dropped 27 C:\Users\user\...\yGbzOMp.exe:Zone.Identifier, ASCII 14->27 dropped 31 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->31 33 Tries to steal Mail credentials (via file / registry access) 14->33 35 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->35 37 Tries to harvest and steal ftp login credentials 19->37 39 Tries to harvest and steal browser information (history, passwords, etc) 19->39 file8 signatures9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8ac1f7de055ec36e94804c99cf51741ec440b128e92f9a721749802e1204a0dc/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-11-24 03:13:44 UTC
File Type:
PE (.Net Exe)
Extracted files:
17
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rla7pxqfl3bw5feajsm46ulud3cebmji5exzu4qxjgac4eqeudoa._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/221124-299yqsac6z/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Malware Config
C2 Extraction:
https://api.telegram.org/bot1591373451:AAH6Q2mvjdA9146Wl0khv2-kuh-iTps2zjw/
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/2b29c5ce-db76-4787-b08c-fcfe8f029242
Unpacked files
SH256 hash:
a327516357b9fa1a75753b3fbd0030e13f374be7cefcdf983d0b731f278b0c59
MD5 hash:
404efdeb9931733904da07f96fabeb72
SHA1 hash:
7ce363cd612f1d9a90b33ec196c4d0a49cdaee02
Link:
https://www.unpac.me/results/045b4e4e-67be-4eb7-8379-418697aed294/
SH256 hash:
a28f531137aeefd07d826c6742a01bd5e3372e8bc7bb495d0c95341722728659
MD5 hash:
87bb79bcecda706b6a7d267bd30fbbf0
SHA1 hash:
2d72e6a559450cf7ffb4e1ee496b610a2aa9e63c
Link:
https://www.unpac.me/results/045b4e4e-67be-4eb7-8379-418697aed294/
SH256 hash:
e86de6cdd467a08433c8f0b4893b55a336c6ad5124ee1fec2727f48321f8ba95
MD5 hash:
06ca189593dc147449a81bbf9b435fec
SHA1 hash:
1cb0b72849b6ae9ae6bf7a9b9341727cf048a1b7
Detections:
AgentTesla
Create hunting rule
Link:
https://www.unpac.me/results/045b4e4e-67be-4eb7-8379-418697aed294/
Parent samples :
8ac1f7de055ec36e94804c99cf51741ec440b128e92f9a721749802e1204a0dc
1e71e56913f6531c96445bc90b51d49e9a69574236d97b3c36ce99db4f9a9ee7
SH256 hash:
8ac1f7de055ec36e94804c99cf51741ec440b128e92f9a721749802e1204a0dc
MD5 hash:
46932de3d79b8b31004320d4a8900ece
SHA1 hash:
ea2b41ba0965aa7ec1431e95ba5cfa0e425bab8b
Link:
https://www.unpac.me/results/045b4e4e-67be-4eb7-8379-418697aed294/
Malware family:
AgentTesla.v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8ac1f7de055e/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/8ac1f7de055ec36e94804c99cf51741ec440b128e92f9a721749802e1204a0dc

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

Executable exe 8ac1f7de055ec36e94804c99cf51741ec440b128e92f9a721749802e1204a0dc

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/338222/

Comments