MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3a736b576c9acb60defc9fc65fdf2c20677df07068b805bcb1da3e05aeae72ab. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3a736b576c9acb60defc9fc65fdf2c20677df07068b805bcb1da3e05aeae72ab
SHA3-384 hash: bd8c0fa1fa5e57845b9bf5a8f55022a94eeaa5933998b266fd72dd2c6b2f3514f657378eb2d883c25acae35f0d92bcae
SHA1 hash: 7bdbb138bb2ec9a4a7e90b8e1ce564db0358157f
MD5 hash: 6402f3dc5dfc34f719837e1611b144c5
humanhash: cola-winter-whiskey-michigan
File name:07623.pdf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:847'872 bytes
First seen:2023-06-16 11:26:59 UTC
Last seen:2023-06-19 14:12:19 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:bHrRlhaDnLMzIL2q+RTdOL8kaRgEbfcPm+6B/2aB69J/9d0XPbwV2TBHihM+eI:bNOyqGUL8FLIPmvITbUPbo21CML
Threatray 2'830 similar samples on MalwareBazaar
TLSH T1E505D014337B5F25C8396BFA48506A3497F8AA1A783FD24B5ED2B4CAAD50F104E80F57
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter threatcat_ch
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
316
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
07623.pdf.exe
Verdict:
Malicious activity
Analysis date:
2023-06-16 11:29:42 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/4c019f7c-0031-4d23-95a9-015b7e2feb5e

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/399471/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.67423843.8102.17579.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
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Creating a file
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/648c47060ef24c46f74c3b49/reports/2ce10df4-ea09-470b-bb52-893c8b3ba75f/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/3a736b576c9acb60defc9fc65fdf2c20677df07068b805bcb1da3e05aeae72ab
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/945042fa-a64b-4ce3-83ff-1ded5af791d8
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1255972
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Found malware configuration
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
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
Sigma detected: Scheduled temp file as task from temp location
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
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 888989 Sample: 07623.pdf.exe Startdate: 16/06/2023 Architecture: WINDOWS Score: 100 74 Found malware configuration 2->74 76 Sigma detected: Scheduled temp file as task from temp location 2->76 78 Multi AV Scanner detection for submitted file 2->78 80 5 other signatures 2->80 7 07623.pdf.exe 7 2->7         started        11 OlnUvUFE.exe 5 2->11         started        13 sOFvE.exe 2->13         started        15 sOFvE.exe 2->15         started        process3 file4 52 C:\Users\user\AppData\Roaming\OlnUvUFE.exe, PE32 7->52 dropped 54 C:\Users\...\OlnUvUFE.exe:Zone.Identifier, ASCII 7->54 dropped 56 C:\Users\user\AppData\Local\...\tmp42D1.tmp, XML 7->56 dropped 58 C:\Users\user\AppData\...\07623.pdf.exe.log, ASCII 7->58 dropped 90 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->90 92 May check the online IP address of the machine 7->92 94 Uses schtasks.exe or at.exe to add and modify task schedules 7->94 96 Adds a directory exclusion to Windows Defender 7->96 17 07623.pdf.exe 17 10 7->17         started        22 powershell.exe 21 7->22         started        24 schtasks.exe 1 7->24         started        98 Multi AV Scanner detection for dropped file 11->98 100 Injects a PE file into a foreign processes 11->100 26 OlnUvUFE.exe 11->26         started        28 schtasks.exe 1 11->28         started        30 sOFvE.exe 13->30         started        32 schtasks.exe 13->32         started        34 sOFvE.exe 15->34         started        36 3 other processes 15->36 signatures5 process6 dnsIp7 60 api4.ipify.org 104.237.62.211, 443, 49692, 49700 WEBNXUS United States 17->60 62 us2.smtp.mailhostbox.com 208.91.199.223, 49693, 49695, 49699 PUBLIC-DOMAIN-REGISTRYUS United States 17->62 64 api.ipify.org 17->64 48 C:\Users\user\AppData\Roaming\...\sOFvE.exe, PE32 17->48 dropped 50 C:\Users\user\...\sOFvE.exe:Zone.Identifier, ASCII 17->50 dropped 82 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 17->82 84 Tries to steal Mail credentials (via file / registry access) 17->84 86 Hides that the sample has been downloaded from the Internet (zone.identifier) 17->86 38 conhost.exe 22->38         started        40 conhost.exe 24->40         started        66 173.231.16.76, 443, 49694, 49702 WEBNXUS United States 26->66 72 2 other IPs or domains 26->72 42 conhost.exe 28->42         started        68 api.ipify.org 30->68 44 conhost.exe 32->44         started        70 api.ipify.org 34->70 88 Tries to harvest and steal browser information (history, passwords, etc) 34->88 46 conhost.exe 36->46         started        file8 signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3a736b576c9acb60defc9fc65fdf2c20677df07068b805bcb1da3e05aeae72ab/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-06-07 16:11:59 UTC
File Type:
PE (.Net Exe)
Extracted files:
16
AV detection:
24 of 37 (64.86%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hjzwwv3mtlfwbxx4t7df7xzmebtx34dqnc4alpfr3i7allvookvq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
0957084aa1da579049aecc78dfcc29b5113a491fbdd4980e2d47110bb2a17c39
AgentTesla
12d37f94ebe64d74e7cc1a4290af6797832b512a223d03d410171f47cd979065
AgentTesla
221cbe3d9337980d54b25da354e9668353bdce5fc307905821617dc767265d90
AgentTesla
2e7ca0ae22bdc084dbdc5672fc1d6f858d935e03866da20c898d6e69222aa32c
AgentTesla
6053c4c96027a86c60053056dc1f2a90142179b628d82f4ac73315ddf36bf544
AgentTesla
98636575f13e34031b0ccae5e2385decdbd8bd51fc08e1a755694534043390a4
AgentTesla
a9c8b6ec1d3d72ddb29a511e1fc672176d5a3637cb57a32c40d3043af22bed5f
AgentTesla
cec5cc9dfa8e64cd0bacc6aa6f7767729dec65d6a8d53184b887dc89a6a76884
AgentTesla
d682a1ef2502e7cf9e5b16a35469e615cec1eab8eb0385ed763f30346b311b7a
AgentTesla
+ 2'820 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/230616-nkejmseg47/
Behaviour
Creates scheduled task(s)
Modifies system certificate store
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
Looks up external IP address via web service
Checks computer location settings
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:
c440617e04a50ced73c8ab992cbe8d8954a3e41f21f046ee9d1f2a41ea9b416d
MD5 hash:
9390df6c9a6111978dee5414bc42eda6
SHA1 hash:
d3cb1c366b9e466afa93eb369838a04d30777795
Link:
https://www.unpac.me/results/76b8e889-9eee-41dd-9ca0-72a38a9aada3/
SH256 hash:
3f1bb439dc1e39bdc7ea992cdbacc9583d53e6c4949433f94a8e5be5fa4d3d29
MD5 hash:
be030d800cea4838ad5a4a7559ed3c32
SHA1 hash:
81a03d90b451475d7b229ae91a811800e03f6cb2
Link:
https://www.unpac.me/results/76b8e889-9eee-41dd-9ca0-72a38a9aada3/
SH256 hash:
d9903fa5a2a280a50b80aa693bcbd3c465fec53e869d8f39764dd78883e68482
MD5 hash:
654add636a79b02f47a6db7ae36170ae
SHA1 hash:
66fc115759d980ac1d732d70e4191905e0ba63b7
Link:
https://www.unpac.me/results/76b8e889-9eee-41dd-9ca0-72a38a9aada3/
SH256 hash:
1347f043aeb2d4f063d2531ff883478514014cd8b2a80ed164df4bdf3a6b9f5b
MD5 hash:
f7f97f5019107cb68f06c6bef71ca96f
SHA1 hash:
3854ec617b35ff138ecd0ad2088b8a23fee46d4b
Link:
https://www.unpac.me/results/76b8e889-9eee-41dd-9ca0-72a38a9aada3/
SH256 hash:
dc3631d8ee7b78d238da3818d231b5f8a9cb1b3a6540643b792d1fc3e9a7ab62
MD5 hash:
62b9923a4c681e6552f3074ad1069ef2
SHA1 hash:
14102ea7ea5f90ac22e0a824b4d3a0a41fdab57d
Detections:
AgentTeslaXorStringsNet
Create hunting rule
Link:
https://www.unpac.me/results/76b8e889-9eee-41dd-9ca0-72a38a9aada3/
Parent samples :
dc3631d8ee7b78d238da3818d231b5f8a9cb1b3a6540643b792d1fc3e9a7ab62
3a736b576c9acb60defc9fc65fdf2c20677df07068b805bcb1da3e05aeae72ab
0d49707dd3dc7f33643c03ec81f9dc60fdacb43d47a577f3a80eb6ffd2851254
SH256 hash:
3a736b576c9acb60defc9fc65fdf2c20677df07068b805bcb1da3e05aeae72ab
MD5 hash:
6402f3dc5dfc34f719837e1611b144c5
SHA1 hash:
7bdbb138bb2ec9a4a7e90b8e1ce564db0358157f
Link:
https://www.unpac.me/results/76b8e889-9eee-41dd-9ca0-72a38a9aada3/
Malware family:
AgentTesla.v4
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3a736b576c9a/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/3a736b576c9acb60defc9fc65fdf2c20677df07068b805bcb1da3e05aeae72ab

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 3a736b576c9acb60defc9fc65fdf2c20677df07068b805bcb1da3e05aeae72ab

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/399471/

Comments