MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b531b9a7a424d41fe022f7f4a31aa7f764e8d0bc33793b9d271a8b5f90ac9378. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b531b9a7a424d41fe022f7f4a31aa7f764e8d0bc33793b9d271a8b5f90ac9378
SHA3-384 hash: 7c56a750b9490ce9946538c59e8d925bc9822886ed09dafa857607af6a0eeb5e62eb00738893ce9fb00e3adeff38097d
SHA1 hash: 3057a9156829bb6bcb4afde107cb1a1117885796
MD5 hash: c83e035a250d7f141ddb35f39c47b721
humanhash: speaker-cola-aspen-emma
File name:c83e035a250d7f141ddb35f39c47b721
Download: download sample
Signature AgentTesla
Create hunting rule
File size:847'872 bytes
First seen:2023-02-24 14:25:17 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'655 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 12288:yUhRuQUa1SLKqJkwQn7vbvkndsYgrJdb4sB5++NMbgs2FUb0xC6peV:yUweBDbcnSNrL4sB5dN0gsEUb0x
Threatray 886 similar samples on MalwareBazaar
TLSH T17D059D48EA74472BDAABBD367100225F1DA1F98177219EBDE3F635B4D204AB1E1C44EC
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 7aca8abab4a4b8da (33 x AgentTesla, 32 x SnakeKeylogger, 4 x DarkCloud)
Reporter zbetcheckin
Tags:32 AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
220
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PO 18-3081.xls
Verdict:
Malicious activity
Analysis date:
2023-02-24 13:50:39 UTC
Tags:
macros opendir exploit cve-2017-11882 loader
Link:
https://app.any.run/tasks/b198f989-e934-47c8-a9f0-3259ffa9377d

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/369492/
Detection(s):
Sanesecurity.Malware.28872.BadIN4.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Creating a window
Launching a process
Creating a process with a hidden window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/63f8c8fd0796d7d621e869b8/reports/9549838a-5714-47bd-985b-acb3b51e05a7/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/b531b9a7a424d41fe022f7f4a31aa7f764e8d0bc33793b9d271a8b5f90ac9378
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/30f045a4-b5e4-4abf-afcf-2d688f3a3d25
Result
Threat name:
AgentTesla, zgRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1181950
Signature
Adds a directory exclusion to Windows Defender
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
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 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: 814780 Sample: nR3gOKcWgX.exe Startdate: 24/02/2023 Architecture: WINDOWS Score: 100 68 Malicious sample detected (through community Yara rule) 2->68 70 Sigma detected: Scheduled temp file as task from temp location 2->70 72 Multi AV Scanner detection for submitted file 2->72 74 2 other signatures 2->74 7 nR3gOKcWgX.exe 7 2->7         started        11 mogtDBHw.exe 5 2->11         started        13 gcWPrHZ.exe 5 2->13         started        15 gcWPrHZ.exe 2->15         started        process3 file4 52 C:\Users\user\AppData\Roaming\mogtDBHw.exe, PE32 7->52 dropped 54 C:\Users\...\mogtDBHw.exe:Zone.Identifier, ASCII 7->54 dropped 56 C:\Users\user\AppData\Local\...\tmp38C7.tmp, XML 7->56 dropped 58 C:\Users\user\AppData\...\nR3gOKcWgX.exe.log, ASCII 7->58 dropped 84 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->84 86 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->86 88 Uses schtasks.exe or at.exe to add and modify task schedules 7->88 90 Adds a directory exclusion to Windows Defender 7->90 17 nR3gOKcWgX.exe 2 5 7->17         started        22 powershell.exe 20 7->22         started        24 schtasks.exe 1 7->24         started        92 Multi AV Scanner detection for dropped file 11->92 94 Injects a PE file into a foreign processes 11->94 26 mogtDBHw.exe 11->26         started        34 2 other processes 11->34 28 gcWPrHZ.exe 13->28         started        30 schtasks.exe 13->30         started        32 gcWPrHZ.exe 15->32         started        36 2 other processes 15->36 signatures5 process6 dnsIp7 60 us2.smtp.mailhostbox.com 208.91.198.143, 49695, 49696, 587 PUBLIC-DOMAIN-REGISTRYUS United States 17->60 48 C:\Users\user\AppData\Roaming\...\gcWPrHZ.exe, PE32 17->48 dropped 50 C:\Users\user\...\gcWPrHZ.exe:Zone.Identifier, ASCII 17->50 dropped 76 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 17->76 78 Tries to steal Mail credentials (via file / registry access) 17->78 80 Hides that the sample has been downloaded from the Internet (zone.identifier) 17->80 38 conhost.exe 22->38         started        40 conhost.exe 24->40         started        62 208.91.199.224, 49698, 587 PUBLIC-DOMAIN-REGISTRYUS United States 26->62 82 Tries to harvest and steal browser information (history, passwords, etc) 26->82 42 conhost.exe 30->42         started        64 208.91.199.225, 49697, 587 PUBLIC-DOMAIN-REGISTRYUS United States 32->64 66 192.168.2.1 unknown unknown 32->66 44 conhost.exe 34->44         started        46 conhost.exe 36->46         started        file8 signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b531b9a7a424d41fe022f7f4a31aa7f764e8d0bc33793b9d271a8b5f90ac9378/
Threat name:
Win32.Trojan.Nekark
Create hunting rule
Status:
Malicious
First seen:
2023-02-24 14:26:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
17
AV detection:
17 of 25 (68.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wuy3tj5eetkb7ybc672kggvh65soruf4gn4txhjhdkfv7efmsn4a._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
4bb9b346c5379d2cfc1b8719449e5b8d1a8bdabf2cf1820229e508b5561f70b0
AgentTesla
4c4b6b6c0f4c2a19e46b2ac062954cfc17abce214a422fde206fbe9e28a13766
AgentTesla
5f4426ef4ff23950b7ca635f689c0e2274a36ddb3233509e22e7a6b19d6719ae
AgentTesla
66a14701526d7638706b0a1e8a4bcdc10d575ae43111ff0bc86ad4ea0a447e7e
AgentTesla
9d8720d03350b0737e0a315bdf24d79a1344d87c1027a7f01b9971a3e000d01c
AgentTesla
ed1dd3f734ad29aaa1da6ada3823d8537704310f257e44524ea08d4c5f81ff3e
AgentTesla
f2a4e636a95c5a934cd6a27d9e91fd83482db7b2e94a3f61ed6035f8feea19a3
AgentTesla
+ 876 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/230224-rrve8ahf73/
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
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:
0c95d57651c17101abb99852e73dd0dc333a15501bf692775cb5e4ae33523fc5
MD5 hash:
545b29c84211c7a4038a1f4bec92dfe2
SHA1 hash:
da20d255cd0e9276b3998cee62867f77d7e4a8c5
Link:
https://www.unpac.me/results/c25d51b7-f161-4f78-aeb1-99962a045f1b/
SH256 hash:
d06df7395d561e198f9b7c5481567116ff2e4c2e84437c018d2a2c8ea6c4ca37
MD5 hash:
0fb6061f7d37424fb9e6d0e76b019c19
SHA1 hash:
98a64bf7b459f032d6ec5793003bf61b5ae1dd74
Link:
https://www.unpac.me/results/c25d51b7-f161-4f78-aeb1-99962a045f1b/
Parent samples :
495607b1aef01bf7dfb64b5cb16a8fc0f161c2923627d71c69de97328f8eca3f
2434aa78b46a3afc98fa6e888c3eb56278ba52b0ff800e7e875af9c2e7f9011a
SH256 hash:
dea2369b7d4c0bbad43ececcf9ba24cc7dc8e46c3de236b154cb9d5af0cbf5be
MD5 hash:
6336ffa05034538ea24a4bbd92249135
SHA1 hash:
7641540073babd9c68fd35144475bbeaaf637904
Link:
https://www.unpac.me/results/c25d51b7-f161-4f78-aeb1-99962a045f1b/
SH256 hash:
bd67fb6ce9e5e3a1a0919f3327648b0cc94a32890bf2cd29eea05e62c9fa1e19
MD5 hash:
619fd810ec051bbac2f7da259fec7a61
SHA1 hash:
2fab2daa79e378331ec0068f9f826b9fd7ad3d5a
Link:
https://www.unpac.me/results/c25d51b7-f161-4f78-aeb1-99962a045f1b/
SH256 hash:
a139042bf81c1760f9e828613bcbbf416e3edce3e84d51b28a267947621c4f5c
MD5 hash:
126b4c26b78487c1b14cd185af3be1ff
SHA1 hash:
25d5bf613d4945117bc06f3c7da376160d442db6
Link:
https://www.unpac.me/results/c25d51b7-f161-4f78-aeb1-99962a045f1b/
SH256 hash:
b531b9a7a424d41fe022f7f4a31aa7f764e8d0bc33793b9d271a8b5f90ac9378
MD5 hash:
c83e035a250d7f141ddb35f39c47b721
SHA1 hash:
3057a9156829bb6bcb4afde107cb1a1117885796
Link:
https://www.unpac.me/results/c25d51b7-f161-4f78-aeb1-99962a045f1b/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b531b9a7a424/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/b531b9a7a424d41fe022f7f4a31aa7f764e8d0bc33793b9d271a8b5f90ac9378

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.

Web download

AgentTesla

Executable exe b531b9a7a424d41fe022f7f4a31aa7f764e8d0bc33793b9d271a8b5f90ac9378

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2550029/
Cape
Cape
https://www.capesandbox.com/analysis/369492/

Comments


Avatar
zbet commented on 2023-02-24 14:25:20 UTC

url : hxxp://23.94.148.100/9015/vbc.exe