MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f8b91c3419d4afe1cd3cdb4deffa3baa3f0e8dd92f41784d99497106075267d8. 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: 11


Intelligence 11 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f8b91c3419d4afe1cd3cdb4deffa3baa3f0e8dd92f41784d99497106075267d8
SHA3-384 hash: f100eb8a1d118274d808f72cf5d4084cfc2b6d2b5d7634ec447380d5b113783080d09e98bea9957aa4822a4cd729a362
SHA1 hash: 0de85ae5e7bef47438a0f832e90054b38ddbc1bc
MD5 hash: aff2d10a2e24c16a8c70f57beeb382f2
humanhash: vegan-twenty-emma-fourteen
File name:rtf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:167'424 bytes
First seen:2023-01-04 19:39:50 UTC
Last seen:2023-01-04 21:28:55 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 3072:nSgrHpf8g1jya056CqqLyBiORGFF0xtALqIv2qTMUCJUB:NLjya0MHqLzDLDOErwU
TLSH T137F32A2892858E51D7ECC074C4B011480BB3B1479E37E76D1EA1ACFA3A467D7722FB66
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 mossdinger
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
187
Origin country :
SE SE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
rtf.exe
Verdict:
Malicious activity
Analysis date:
2023-01-04 19:41:16 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/7cc33f65-8c2d-48b8-831a-96f794c24be2

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/349469/
Detection(s):
SecuriteInfo.com.Trojan.TR.Spy.Gen8.3238.19274.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Using the Windows Management Instrumentation requests
Reading critical registry keys
Creating a window
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Stealing user critical data
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
hacktool packed
Link:
https://www.filescan.io/uploads/63b5d6140e926711fd76e662/reports/a95919d7-d701-4586-92c0-e0a2a218677e/overview
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/6373dfbd-5c59-4c18-a437-32c874548b8e
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
84 / 100
Link:
https://www.joesandbox.com/analysis/1145290
Signature
Antivirus / Scanner detection for submitted sample
Machine Learning detection for sample
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)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f8b91c3419d4afe1cd3cdb4deffa3baa3f0e8dd92f41784d99497106075267d8/
Threat name:
ByteCode-MSIL.Trojan.Pwsx
Create hunting rule
Status:
Malicious
First seen:
2023-01-04 20:02:17 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
15 of 26 (57.69%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7c4rynaz2sx6dtj43ng676r3vi7q5dozf5axqtmzjfyqmb2sm7ma._file
Verdict:
unknown
Result
Malware family:
n/a
Score:
  7/10
Tags:
collection spyware stealer
Link:
https://tria.ge/reports/230104-ydh9cshe29/
Behaviour
Suspicious use of AdjustPrivilegeToken
outlook_office_path
outlook_win_path
Accesses Microsoft Outlook profiles
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/1fa63ae2-dca5-4b02-bbd0-0f1e15901058
Unpacked files
SH256 hash:
f8b91c3419d4afe1cd3cdb4deffa3baa3f0e8dd92f41784d99497106075267d8
MD5 hash:
aff2d10a2e24c16a8c70f57beeb382f2
SHA1 hash:
0de85ae5e7bef47438a0f832e90054b38ddbc1bc
Link:
https://www.unpac.me/results/070ad35f-c2f7-4aa7-bedc-4de80bdc1514/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f8b91c3419d4/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.61
Link:
https://yomi.yoroi.company/submissions/f8b91c3419d4afe1cd3cdb4deffa3baa3f0e8dd92f41784d99497106075267d8

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.

Cape
Cape
https://www.capesandbox.com/analysis/349469/

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