MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 281905755d85f44072ff82b42789ad01d144ef1ed016cba569bcb73d3e98ee49. 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


Formbook


Vendor detections: 14


Intelligence 14 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 281905755d85f44072ff82b42789ad01d144ef1ed016cba569bcb73d3e98ee49
SHA3-384 hash: 249429bfd380f419a378b453f8872151e485fd11b1fb501c944963fcf2c685b2fdb2f17f379c4a8935864640ca107e3f
SHA1 hash: f7a688f6923b85a73c912e136ac4b30c119480f2
MD5 hash: ccab4a9e39ca4cc04e34a9b06cc842f6
humanhash: crazy-river-social-hot
File name:kredi Karti Hesap Özeti- 4508 0519.pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:690'176 bytes
First seen:2023-04-06 10:32:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 12288:J75ou+OGr/37+UiObiCC1L7fJcLxVqbIV/To:JlcLr/LjLbiCmnh+obg/To
Threatray 206 similar samples on MalwareBazaar
TLSH T1E4E4122833E88B26D65E4B76F9A6310047FAB3773862FB0D1EC1B5E84EE73548502597
TrID 49.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
20.9% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
8.7% (.SCR) Windows screen saver (13097/50/3)
7.0% (.EXE) Win64 Executable (generic) (10523/12/4)
4.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
File icon (PE):PE icon
dhash icon 00706dd050697000 (9 x AgentTesla, 5 x Loki, 4 x Formbook)
Reporter abuse_ch
Tags:exe FormBook geo TUR

Intelligence

File Origin
# of uploads :
1
# of downloads :
263
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
kredi Karti Hesap Özeti- 4508 0519.pdf.exe
Verdict:
Malicious activity
Analysis date:
2023-04-06 10:35:36 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/64f74d8f-0184-4b7a-a15c-958d29f54d84

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/380610/
Detection(s):
Sanesecurity.Malware.28872.BadIN4.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
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 from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/642e9fe1da5bf6666c9cdcff/reports/99c55b7a-caba-4f0a-8abb-f70626f88ec4/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/281905755d85f44072ff82b42789ad01d144ef1ed016cba569bcb73d3e98ee49
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:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0a886131-0322-486a-aae2-61e5e944f772
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1209586
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Initial sample is a PE file and has a suspicious name
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Scheduled temp file as task from temp location
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 FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 842502 Sample: kredi_Karti_Hesap_#U00d6zet... Startdate: 06/04/2023 Architecture: WINDOWS Score: 100 35 Malicious sample detected (through community Yara rule) 2->35 37 Sigma detected: Scheduled temp file as task from temp location 2->37 39 Multi AV Scanner detection for submitted file 2->39 41 4 other signatures 2->41 7 kredi_Karti_Hesap_#U00d6zeti-_4508_0519.pdf.exe 7 2->7         started        11 bNRrkBksQLw.exe 5 2->11         started        process3 file4 29 C:\Users\user\AppData\...\bNRrkBksQLw.exe, PE32 7->29 dropped 31 C:\Users\user\AppData\Local\...\tmpEB5A.tmp, XML 7->31 dropped 33 kredi_Karti_Hesap_...08_0519.pdf.exe.log, ASCII 7->33 dropped 43 Uses schtasks.exe or at.exe to add and modify task schedules 7->43 45 Adds a directory exclusion to Windows Defender 7->45 13 powershell.exe 21 7->13         started        15 schtasks.exe 1 7->15         started        17 kredi_Karti_Hesap_#U00d6zeti-_4508_0519.pdf.exe 7->17         started        47 Multi AV Scanner detection for dropped file 11->47 19 schtasks.exe 1 11->19         started        21 bNRrkBksQLw.exe 11->21         started        signatures5 process6 process7 23 conhost.exe 13->23         started        25 conhost.exe 15->25         started        27 conhost.exe 19->27         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/281905755d85f44072ff82b42789ad01d144ef1ed016cba569bcb73d3e98ee49/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-04-05 08:24:47 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
18 of 37 (48.65%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=famqk5k5qx2ea4x7qk2cpcnnahiuj3y62almxjljxs3t2puy5zeq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
2b25388d41f694e67f7a237681dffe91afa258adbec617a6c203ba6fc0f6ae88
Formbook
341db7699f4f2349d2cec4a85f09a899b322268b811d722aa9da9e035c0db874
Formbook
50e39da793e84dc45780be3dca5aed8fa300ae2aaf7708a58da92e31865f2e81
Formbook
87bbce3aff8ba59a541bd7fdc7c8df35108dd3ca5829a50448d4efee6abaac1f
Formbook
89a1bcbf5cbf06ae932e2c7fe045436200ef03336d4df4202b359c477f08acab
Formbook
92f8a10ac629bce80763a73e362d3266139f4367970bfcecb34b5c1f882f223c
Formbook
a1896f4eab7631eb5e0daa3a5a9a9787cbb5ebc2324f4823f96e3d565b4875e6
Formbook
e05dd4fdf0071a4108eac210a9eeae5c2bfa44d80dc8eac941f4e4a0d1fc0aa1
Formbook
f0e160fc8c0dacffdd789b3a91933fd9c3d629077d25e29a4f69217220689374
Formbook
f0eef09d45e8b0edf907f9fa6f9bd84a33327f62359fef4b92508a413d68c1b3
Formbook
+ 196 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/230406-mljdjscf65/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Unpacked files
SH256 hash:
d85e729c62684bdc5f34613b012f30c0ca59f45c43531eb7a5fbc04ec68f7e93
MD5 hash:
d40976db99bc249211fd127a5844a55b
SHA1 hash:
cc36f5f5418764df2f1a28acc089d31a5e73f3dc
Detections:
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/6d7aee18-fd5c-4452-b451-5eb588bc3abd/
Parent samples :
2b25388d41f694e67f7a237681dffe91afa258adbec617a6c203ba6fc0f6ae88
c7b18628cd2f25508290da77b3ad685ecc1d0e80edc5940dd4773b8dbe037209
281905755d85f44072ff82b42789ad01d144ef1ed016cba569bcb73d3e98ee49
354c8752e895e413f243d8893cb1ba53c61d35c7e44233dfc59b85e382ec3c9b
SH256 hash:
78c2ddf3d7708086beb5ea57c40cc9f583f53bb38902a6ed8f9f57be3033700c
MD5 hash:
29338e689fca5831fb926f1361c098ed
SHA1 hash:
35dbf3f881074b6dffe491df0a77eebf0f7f3d55
Link:
https://www.unpac.me/results/6d7aee18-fd5c-4452-b451-5eb588bc3abd/
SH256 hash:
3a796ef7d113991c112e30b9a49d8e77981aa1519bb160ca92640f07c6084fdb
MD5 hash:
31bba87573b777c5756caaf3ca04ebd4
SHA1 hash:
8377b9d328bd8ad7bf3cd2e019312150145a564e
Link:
https://www.unpac.me/results/6d7aee18-fd5c-4452-b451-5eb588bc3abd/
SH256 hash:
3c507afadbb1c31a9ebdd24baac5739d47576159e01c5e84f973c951885100aa
MD5 hash:
e79bf0e7e9d52d398e0b23b352394c68
SHA1 hash:
682325763a0ec77e0fd475ea3a4021b4651eceac
Link:
https://www.unpac.me/results/6d7aee18-fd5c-4452-b451-5eb588bc3abd/
SH256 hash:
ae09f69ae1f8064255a4cc374070d4a882a3abba00639ee1c206eed3f2982e98
MD5 hash:
c75f4fc5f57dcfda371b334c7baa78b0
SHA1 hash:
608bea0ef153549552916b3089ac2b7334b07464
Link:
https://www.unpac.me/results/6d7aee18-fd5c-4452-b451-5eb588bc3abd/
SH256 hash:
9c898b83c09e5430d29b2a46c3518f609d3011376128f9d19748d1b3087cf96e
MD5 hash:
a51f9522ec6450784d5318514997bc10
SHA1 hash:
10cda22b06fde565fb4ff9e1864df8df9e53cc4c
Link:
https://www.unpac.me/results/6d7aee18-fd5c-4452-b451-5eb588bc3abd/
SH256 hash:
281905755d85f44072ff82b42789ad01d144ef1ed016cba569bcb73d3e98ee49
MD5 hash:
ccab4a9e39ca4cc04e34a9b06cc842f6
SHA1 hash:
f7a688f6923b85a73c912e136ac4b30c119480f2
Link:
https://www.unpac.me/results/6d7aee18-fd5c-4452-b451-5eb588bc3abd/
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/281905755d85f44072ff82b42789ad01d144ef1ed016cba569bcb73d3e98ee49

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

Formbook

Executable exe 281905755d85f44072ff82b42789ad01d144ef1ed016cba569bcb73d3e98ee49

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/380610/

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