MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6d731cdb770865654178d35ddd42ed30c749311de73924037707997e363e0bb0. 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: 18


Intelligence 18 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6d731cdb770865654178d35ddd42ed30c749311de73924037707997e363e0bb0
SHA3-384 hash: 33c8a9c9aadb565ec7837155940352e251e56b595e12fca19d2050d6f30e34b7a6352ac817e24f851baaf17e5b1745d8
SHA1 hash: 5d09caa39711dd5810b7f1682000362bf2cafae3
MD5 hash: 55c6392ac12e6e53b5815ddfab012bce
humanhash: oranges-william-hawaii-ceiling
File name:00000915862.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:296'635 bytes
First seen:2023-06-14 09:11:15 UTC
Last seen:2023-06-16 13:58:59 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:JYa68Xqne5RVZMsTnw0/ykGimcLwW0siBxO2mwC3uMoRfjZ0VOLQzWXk00fH:JYOqOVc0nLbcVBxvrCefSOLQzW/GH
Threatray 3'644 similar samples on MalwareBazaar
TLSH T152541288A304E5D7E0932BB30E77496B1BFEF81154F8358B2789359EB923551441E3BB
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 64f4d4d4ecf4d4d4 (82 x SnakeKeylogger, 34 x AgentTesla, 24 x Formbook)
Reporter cocaman
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
280
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
00000915862.exe
Verdict:
Malicious activity
Analysis date:
2023-06-14 09:14:02 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/f1ef2cb4-460d-4f85-90b0-60f1b85ee6ef

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
XorStringsNET
Create hunting rule
Link:
https://www.capesandbox.com/analysis/398667/
Detection(s):
SecuriteInfo.com.Gen.Variant.Nemesis.22782.10011.23971.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP request
Reading critical registry keys
Searching for the window
Creating a file in the %temp% directory
Creating a window
Creating a file
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/90654/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
lolbin overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/6489846639f32abaefb351fe/reports/f24500f1-6924-485b-bb83-28f82af193b5/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/6d731cdb770865654178d35ddd42ed30c749311de73924037707997e363e0bb0
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/14ad444f-dde0-4b79-af4b-de65c4df5bef
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1254323
Signature
Creates multiple autostart registry keys
Detected unpacking (changes PE section rights)
Detected unpacking (creates a PE file in dynamic memory)
Detected unpacking (overwrites its own PE header)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
Maps a DLL or memory area into another process
May check the online IP address of the machine
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 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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 887342 Sample: 00000915862.exe Startdate: 14/06/2023 Architecture: WINDOWS Score: 100 42 Found malware configuration 2->42 44 Multi AV Scanner detection for submitted file 2->44 46 Yara detected AgentTesla 2->46 48 2 other signatures 2->48 6 gpxtdy.exe 19 2->6         started        10 00000915862.exe 1 21 2->10         started        12 gpxtdy.exe 19 2->12         started        process3 file4 22 C:\Users\user\AppData\Local\...\xyzcvxdqi.dll, PE32 6->22 dropped 50 Multi AV Scanner detection for dropped file 6->50 52 Detected unpacking (changes PE section rights) 6->52 54 Detected unpacking (creates a PE file in dynamic memory) 6->54 66 2 other signatures 6->66 14 gpxtdy.exe 14 2 6->14         started        24 C:\Users\user\AppData\Roaming\...\gpxtdy.exe, PE32 10->24 dropped 26 C:\Users\user\AppData\Local\...\xyzcvxdqi.dll, PE32 10->26 dropped 56 Detected unpacking (overwrites its own PE header) 10->56 58 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 10->58 60 May check the online IP address of the machine 10->60 62 Creates multiple autostart registry keys 10->62 18 00000915862.exe 17 3 10->18         started        28 C:\Users\user\AppData\Local\...\xyzcvxdqi.dll, PE32 12->28 dropped 64 Maps a DLL or memory area into another process 12->64 20 gpxtdy.exe 2 12->20         started        signatures5 process6 dnsIp7 30 64.185.227.155, 443, 49699 WEBNXUS United States 14->30 32 api.ipify.org 14->32 34 api4.ipify.org 173.231.16.76, 443, 49697, 49701 WEBNXUS United States 18->34 36 smtp.gmail.com 142.250.145.109, 49698, 49700, 49702 GOOGLEUS United States 18->36 38 api.ipify.org 18->38 68 Creates multiple autostart registry keys 18->68 40 api.ipify.org 20->40 70 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 20->70 72 Tries to steal Mail credentials (via file / registry access) 20->72 74 Tries to harvest and steal browser information (history, passwords, etc) 20->74 signatures8
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/6d731cdb770865654178d35ddd42ed30c749311de73924037707997e363e0bb0/
Threat name:
Win32.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2023-06-14 06:55:06 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
20 of 24 (83.33%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=nvzrzw3xbbswkqly2no52qxngddusmi5444sia3xa6mx4nr6boya._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
0cc8d93630b4068b0b72119c061925754274478463014d05696a34603f88eaf7
AgentTesla
38b7e813402447704258ca274ea142fc05f52da70913bbd3d31392a855287f8e
AgentTesla
60221fe8c0c8b95270816c5f36f3e5c0f01cede1c822a7d7a115189dc78a0cb5
AgentTesla
7ca4331b53cb649259648314c7e8eb267cfba6d16fdbc58273fd1005584f4b91
AgentTesla
+ 3'634 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/230614-k56l3sfc75/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
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
Looks up external IP address via web service
Loads dropped DLL
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:
13acbdb402e6e67fd4588e60191a4848212fabc62355585b8419aa186d170223
MD5 hash:
34413856f7d66161e770ba120a4e0e18
SHA1 hash:
a1dea0ae76f748a9c872a6f80c0286eb7e314811
Link:
https://www.unpac.me/results/52aaf540-099c-485a-b17c-270f6cbb0340/
SH256 hash:
be1ce816797ca98e02fb730d0b14c63df4b52c0edcea8f9db0ed0b4c4c436609
MD5 hash:
7bf5d6dca3100b92f38d6748da9f2b54
SHA1 hash:
60a4bede7a41eb48baec78de9a414ae43c853271
Link:
https://www.unpac.me/results/52aaf540-099c-485a-b17c-270f6cbb0340/
SH256 hash:
d495833f204e4cf02f08493c2b76edc8aa20e1e801f8ad4a0eae2bdf8481fedd
MD5 hash:
c94d886c503c4b4975cd92e80429ccbc
SHA1 hash:
1e8307717a3812d2321ececd55bebaf52ae1548f
Detections:
AgentTeslaXorStringsNet
Create hunting rule
Link:
https://www.unpac.me/results/52aaf540-099c-485a-b17c-270f6cbb0340/
Parent samples :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 hash:
6d731cdb770865654178d35ddd42ed30c749311de73924037707997e363e0bb0
MD5 hash:
55c6392ac12e6e53b5815ddfab012bce
SHA1 hash:
5d09caa39711dd5810b7f1682000362bf2cafae3
Link:
https://www.unpac.me/results/52aaf540-099c-485a-b17c-270f6cbb0340/
Malware family:
AgentTesla.v4
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/6d731cdb7708/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/6d731cdb770865654178d35ddd42ed30c749311de73924037707997e363e0bb0

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:MSIL_SUSP_OBFUSC_XorStringsNet
Create hunting rule
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
Create hunting rule
Author:dr4k0nia
Description:Detects XorStringsNET string encryption, and other obfuscators derived from it
Rule name:pe_imphash
Create hunting rule
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
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

zip 471abb66ab9da6ec99d1a501a0cfcb6cb8f0b5de262f12b8f3d334bceadeca9a

AgentTesla

Executable exe 6d731cdb770865654178d35ddd42ed30c749311de73924037707997e363e0bb0

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 471abb66ab9da6ec99d1a501a0cfcb6cb8f0b5de262f12b8f3d334bceadeca9a
Cape
Cape
https://www.capesandbox.com/analysis/398667/
  
Dropped by
MD5 c96860ffddade9836a1a27bdf576a383

Comments