MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 71626f4c825903dc56b7df19096cf84ae800ce19aa6e02f23d72fe847eb3cec1. 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: 71626f4c825903dc56b7df19096cf84ae800ce19aa6e02f23d72fe847eb3cec1
SHA3-384 hash: dd96434b71cc2fae1185b825c0de5ee2589742f2a441f5a98d96b5a95e4bdc57621146325afaf05dd456683cf642bf99
SHA1 hash: ea5a849b373d02bf7d5c642feb5a84fc91cf7c03
MD5 hash: 8e64daacc62555378a029407e760c3e4
humanhash: don-virginia-asparagus-winter
File name:z1RT435HT.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:803'840 bytes
First seen:2023-06-16 11:49:39 UTC
Last seen:2023-06-16 12:49:05 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:zNx4/a2iNx5LbzIu9+r9V4qXBJpyPlCm8kCT+lRfTnLKJCO:rOa1j5LA9V4qXBJsPlh8TKfw
Threatray 2'835 similar samples on MalwareBazaar
TLSH T1E005021026E8CB2AC07F0BF548141631877A231AF577E7060DD2B5FD1DA2BD3965BA8B
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)
File icon (PE):PE icon
dhash icon 0000000000000000 (872 x AgentTesla, 496 x Formbook, 296 x RedLineStealer)
Reporter FXOLabs
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
306
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
z1RT435HT.exe
Verdict:
Malicious activity
Analysis date:
2023-06-16 11:52:13 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/56df2117-57ce-4ec0-b024-ea28d2bd502a

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/399474/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
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:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
floxif packed threat virus
Link:
https://www.filescan.io/uploads/648c4c6aab82700939a64c15/reports/7c05a5ff-0249-4994-982e-19de56725936/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/71626f4c825903dc56b7df19096cf84ae800ce19aa6e02f23d72fe847eb3cec1
Result
Verdict:
UNKNOWN
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/91c956ae-ab71-4ec8-a0f6-b572d311e907
Result
Threat name:
AgentTesla, zgRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1256010
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
Malicious sample detected (through community Yara rule)
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 schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected zgRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 889027 Sample: z1RT435HT.exe Startdate: 16/06/2023 Architecture: WINDOWS Score: 100 51 Found malware configuration 2->51 53 Malicious sample detected (through community Yara rule) 2->53 55 Sigma detected: Scheduled temp file as task from temp location 2->55 57 5 other signatures 2->57 7 z1RT435HT.exe 7 2->7         started        11 tkPhDIknum.exe 5 2->11         started        process3 file4 31 C:\Users\user\AppData\...\tkPhDIknum.exe, PE32 7->31 dropped 33 C:\Users\...\tkPhDIknum.exe:Zone.Identifier, ASCII 7->33 dropped 35 C:\Users\user\AppData\Local\...\tmp9794.tmp, XML 7->35 dropped 37 C:\Users\user\AppData\...\z1RT435HT.exe.log, ASCII 7->37 dropped 59 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->59 61 May check the online IP address of the machine 7->61 63 Uses schtasks.exe or at.exe to add and modify task schedules 7->63 65 Adds a directory exclusion to Windows Defender 7->65 13 z1RT435HT.exe 15 7 7->13         started        17 powershell.exe 19 7->17         started        19 schtasks.exe 1 7->19         started        67 Multi AV Scanner detection for dropped file 11->67 69 Injects a PE file into a foreign processes 11->69 21 tkPhDIknum.exe 7 11->21         started        23 schtasks.exe 1 11->23         started        signatures5 process6 dnsIp7 39 smtp.yandex.ru 77.88.21.158, 49708, 49709, 49711 YANDEXRU Russian Federation 13->39 41 api4.ipify.org 64.185.227.155, 443, 49707 WEBNXUS United States 13->41 49 2 other IPs or domains 13->49 71 Installs a global keyboard hook 13->71 25 conhost.exe 17->25         started        27 conhost.exe 19->27         started        43 173.231.16.76, 443, 49710 WEBNXUS United States 21->43 45 smtp.yandex.com 21->45 47 api.ipify.org 21->47 73 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 21->73 75 Tries to steal Mail credentials (via file / registry access) 21->75 77 Tries to harvest and steal browser information (history, passwords, etc) 21->77 29 conhost.exe 23->29         started        signatures8 process9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/71626f4c825903dc56b7df19096cf84ae800ce19aa6e02f23d72fe847eb3cec1/
Threat name:
ByteCode-MSIL.Spyware.Taskun
Create hunting rule
Status:
Malicious
First seen:
2023-06-16 02:58:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
14 of 24 (58.33%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ofrg6tecleb5yvvx34mqs3hyjluabtqzvjxaf4r5ol7ii7vtz3aq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
082c753b9065e2c0db0904195b91ae7b59b23d56252bf941c70cf9b0a5fcb6ea
AgentTesla
0d8247c4ed6a49e33ac5d481f08cdef22d2ed7caf2434d031e0a0cebe296893d
AgentTesla
12384caecb7a336ae37a29e642488b5cc45559c321dad21c4c8fa7868a2ce859
AgentTesla
3c2b603e5f2c4bf67f3e240cff2daa7ffca9703ce808e9893f446963ff72eb1e
AgentTesla
654385028b87dbf8e7387cd76dc69099cdcc344f97dc735647d429d11f7fe95f
AgentTesla
90af14f7e125ba4bb6b30152719708b262b08d77b30b02d02ee136d2acf8bfb5
AgentTesla
c41a86ef4cc333d1fa382b1aef023e72a4316dcbf7e0fd7b2670d2badfd17477
AgentTesla
d7abd39aef9b875bc280512418843d56e027212adfd34c36d7d20203168b8bad
AgentTesla
e9104c6f82a1b8c52bb881161440b8b1a8e3bf358cd60672dbfc14a2bc12518d
AgentTesla
+ 2'825 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger spyware stealer trojan
Link:
https://tria.ge/reports/230616-nzkn7seg96/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
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:
1a46bdf36ddb09029abff427c3359169d3294637bd5d951601eb56588be852da
MD5 hash:
df83a9e20cdc2c45481fa2343112a04a
SHA1 hash:
fffe9743f3ceb03ade0946a3beeca8bcbb89a59e
Link:
https://www.unpac.me/results/d55afe97-41e3-4672-9922-318e098a95ba/
SH256 hash:
f85b07e0286c672db06689b3b04c6524876962f0ba0ee613143ac376f7e6a0fe
MD5 hash:
4bf9fe9ac31d8411908aa4db2f63e278
SHA1 hash:
f1d23f510b7480bd22fca34802650baefccba252
Link:
https://www.unpac.me/results/d55afe97-41e3-4672-9922-318e098a95ba/
SH256 hash:
52f358d201e81d3a0391cedd3042e2f957555b77aa49559f7fb810bbb7673ba1
MD5 hash:
c785ddc46141af772c75101d17c46a41
SHA1 hash:
e248723b6f60cc7607980d07172b64c33b2b2f15
Link:
https://www.unpac.me/results/d55afe97-41e3-4672-9922-318e098a95ba/
SH256 hash:
274c9d689df9ab2fe033f32903e2d741850b412f8060b0e3b7a3a9cf9a676b48
MD5 hash:
d2474aad643d68351b0048f3f2cb2251
SHA1 hash:
6b867a2d09a868969ca47dfe91e273a812ebd8ac
Detections:
AgentTeslaXorStringsNet
Create hunting rule
Link:
https://www.unpac.me/results/d55afe97-41e3-4672-9922-318e098a95ba/
Parent samples :
71626f4c825903dc56b7df19096cf84ae800ce19aa6e02f23d72fe847eb3cec1
d3fa8bd6b585950b90a820e54ce4b98e306dba962498f7f098ebd811dfdc735f
0aea55a753fc5e090556cab151517684fc4526f2fdf65523abea2853ad11ba3c
7f8a95173e17256698324886bb138b7936b9e8c5b9ab8fffbfe01080f02f286c
SH256 hash:
b86193f0f5eeadf451f23596dffb4d015245311c67bc15244c2b1c81293d3679
MD5 hash:
be09d1a9fbdc7fe4ad47e49a0ccf2a0e
SHA1 hash:
3eea7d856de59fefd670110c2edda63c319a5a1b
Link:
https://www.unpac.me/results/d55afe97-41e3-4672-9922-318e098a95ba/
SH256 hash:
71626f4c825903dc56b7df19096cf84ae800ce19aa6e02f23d72fe847eb3cec1
MD5 hash:
8e64daacc62555378a029407e760c3e4
SHA1 hash:
ea5a849b373d02bf7d5c642feb5a84fc91cf7c03
Link:
https://www.unpac.me/results/d55afe97-41e3-4672-9922-318e098a95ba/
Malware family:
AgentTesla.v4
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/71626f4c8259/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/71626f4c825903dc56b7df19096cf84ae800ce19aa6e02f23d72fe847eb3cec1

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 71626f4c825903dc56b7df19096cf84ae800ce19aa6e02f23d72fe847eb3cec1

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/399474/

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