MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3a99f6960db39c701811edf0ec230f829ac336e829c551f8b849c997e334188a. 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: 11


Intelligence 11 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3a99f6960db39c701811edf0ec230f829ac336e829c551f8b849c997e334188a
SHA3-384 hash: b6eec01fc4d26a254b22a212b9f753251b35f60c5c02a4614ac60213048c81524cc6f6ac63955ad49c736ad6b8f447be
SHA1 hash: a2754c8a9e9f76e83c99a7b0c5de1eebea823108
MD5 hash: 1c0d907f3ead4d3ca9aea33702c83cbe
humanhash: monkey-green-seven-vegan
File name:Invoice.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:916'992 bytes
First seen:2023-07-25 10:48:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:AC426I5+p4+BAbHG506F6j/qtQeTLO8jVfBVfBVfg:nx6I5W4+BAbGv6jyt1XhfLfLf
Threatray 3'337 similar samples on MalwareBazaar
TLSH T1A415DE30F7EBD712C78B0ABD583C7EBB138912C674D2A687680B9D59A584F78490363D
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 19f8e0d0d4d4e871 (6 x Formbook, 1 x Loki)
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
260
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Invoice.exe
Verdict:
No threats detected
Analysis date:
2023-07-25 10:57:38 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/38c8b724-290e-46a0-80a2-17930dda63ba

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/432134/
Detection(s):
SecuriteInfo.com.Trojan.Siggen21.10719.7825.31028.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Launching a process
Creating a file
Forced shutdown of a system process
Unauthorized injection to a system process
Gathering data
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/3a99f6960db39c701811edf0ec230f829ac336e829c551f8b849c997e334188a
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/674c78ac-216d-4ce6-8c91-76ae1678cf7e
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1279077
Signature
Initial sample is a PE file and has a suspicious name
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1279077 Sample: Invoice.exe Startdate: 25/07/2023 Architecture: WINDOWS Score: 72 15 Malicious sample detected (through community Yara rule) 2->15 17 Multi AV Scanner detection for submitted file 2->17 19 Yara detected FormBook 2->19 21 2 other signatures 2->21 6 Invoice.exe 3 2->6         started        process3 file4 13 C:\Users\user\AppData\...\Invoice.exe.log, ASCII 6->13 dropped 9 RegSvcs.exe 6->9         started        11 RegSvcs.exe 6->11         started        process5
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3a99f6960db39c701811edf0ec230f829ac336e829c551f8b849c997e334188a/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-07-20 13:41:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
25 of 38 (65.79%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hkm7nfqnwoohagar5xyoyiypqknmgnxifhcvd6fyjhezpyzudcfa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0090f5c3f38d949a7c6c9d165e822cc82ad48bba628c7e9776567002ad4f67db
Formbook
25d490e5ecd01bf73186267d8636482ee4f1f3012e64f214268cee4748cb5369
Formbook
3ee58f59d9f63943f9b78d31c503027f416c7f5cb4ed606768c4c8767133c854
Formbook
572e8b2c173dc361f25400cbbba7a980cea2dcdf91e1245902f31d05387cec1f
Formbook
5d95b52efcb12349fe0a0734622162be408c34b0b970239e3dd374bb47b133ac
Formbook
8e16e5a2e8da8e98b9caa9c492cd7fa65c4845102a8687309c4b40a921c91f11
Formbook
94509d1a6070cfbaeeee0e3de30bf14dce5f4b28bfeef4ab3cf9bedbd0a07dd1
Formbook
b3699701369ab6740b96775c38270cbab60d603be961f09ea5e5384151b43273
Formbook
fd4e8f61142ea384a48b69dd3b5d3b081680c3e7c6508bb5ba3cf646b813ad45
Formbook
+ 3'327 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/230725-mwpcjscg7z/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
039e72b646c8abf541b7d6d87e393c5c634fae83309758ee83ae159534691481
MD5 hash:
17eb09e5a18258bbb42396bb29e0a6d0
SHA1 hash:
69658d2a564ebab1586933530eb877826b556c4e
Detections:
XLoader
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/9b9191db-f270-4fcd-b5fa-c9ae39af0e60/
Parent samples :
69158a09d4c8167f9e137da4fca102ffdeb9f5478d46446a34dd3bbe1ccfa1f6
572e8b2c173dc361f25400cbbba7a980cea2dcdf91e1245902f31d05387cec1f
fd4e8f61142ea384a48b69dd3b5d3b081680c3e7c6508bb5ba3cf646b813ad45
2b4b15b5d5d397385ff0c94694b64f604a284fabcf60b227356ece67a5b64ee7
0090f5c3f38d949a7c6c9d165e822cc82ad48bba628c7e9776567002ad4f67db
25d490e5ecd01bf73186267d8636482ee4f1f3012e64f214268cee4748cb5369
3ee58f59d9f63943f9b78d31c503027f416c7f5cb4ed606768c4c8767133c854
a164652a4336afd460b41b4b744547c5f7999e35ae5b8ccf1abbc6bb2d2c5a32
3931d6780f87facdf721f6e730ec38738afe7bb5378247824a1374802e2d04af
b9cf0848d2bba746fab74aae513f2b9815a1bb134e198e99c12d280568b1210a
459e929fa858fe59c50dc6887ce7fa9a79f13719dc5c759aa069559d2956e6c8
94509d1a6070cfbaeeee0e3de30bf14dce5f4b28bfeef4ab3cf9bedbd0a07dd1
7f16701eeca94cea23e593f41578c9e1d919a18d5b67c72537df507ebbba9267
c79762f99daabb3053394d3b98d951a346c1aeb957606fde0040d3905aca3dfa
5d95b52efcb12349fe0a0734622162be408c34b0b970239e3dd374bb47b133ac
9292d7b24e619b853df2eefe4a41acee5fd6e7af72a42baf497bfa1d17154629
8e16e5a2e8da8e98b9caa9c492cd7fa65c4845102a8687309c4b40a921c91f11
3a99f6960db39c701811edf0ec230f829ac336e829c551f8b849c997e334188a
SH256 hash:
fc67477ee9b396d44ec8e8f94b0e666e15bb105bfc00515cba09d9c33c7357f7
MD5 hash:
b0464ea85f8c39a0971ee714e66eebd7
SHA1 hash:
a60ce444bd774347a40a53ed0b3999b513fb19e7
Link:
https://www.unpac.me/results/9b9191db-f270-4fcd-b5fa-c9ae39af0e60/
SH256 hash:
4dd4fdf1154d3547dd9587465a76f852ee124e2756e4d7598b2c408280907a64
MD5 hash:
b4a3ad17df813180e1c1390a8348fc74
SHA1 hash:
34c070d55060f56ca05555cf43373145b638cb98
Link:
https://www.unpac.me/results/9b9191db-f270-4fcd-b5fa-c9ae39af0e60/
SH256 hash:
30bb4e52f3984bcdd262d8ad3224ad14d0f2426da93f2479a1e6b94e9fc30155
MD5 hash:
29f9e1147f47779166332425eaf4709a
SHA1 hash:
29bafe2b69c148d3cf7e55feff2498f0810b02dc
Link:
https://www.unpac.me/results/9b9191db-f270-4fcd-b5fa-c9ae39af0e60/
SH256 hash:
3a99f6960db39c701811edf0ec230f829ac336e829c551f8b849c997e334188a
MD5 hash:
1c0d907f3ead4d3ca9aea33702c83cbe
SHA1 hash:
a2754c8a9e9f76e83c99a7b0c5de1eebea823108
Link:
https://www.unpac.me/results/9b9191db-f270-4fcd-b5fa-c9ae39af0e60/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/3a99f6960db39c701811edf0ec230f829ac336e829c551f8b849c997e334188a

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:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_imphash
Create hunting rule
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
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 3a99f6960db39c701811edf0ec230f829ac336e829c551f8b849c997e334188a

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/432134/

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