MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a9e8c821bdf65ec3bf80857646168be279506f299cc85b44c1f87864757e6a43. 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: 16


Intelligence 16 IOCs YARA 2 File information Comments
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SHA256 hash: a9e8c821bdf65ec3bf80857646168be279506f299cc85b44c1f87864757e6a43
SHA3-384 hash: 954e27cc19f99b9cc1447fb5659f664c57926024d1b47e6f109b6fddbd3374ec492b772351e6de5c15d7337ae8e65eb6
SHA1 hash: d6db67800f0849593a0f07c54c85f404c2f4de2d
MD5 hash: 64972b7080043bd5823e8c6fe83ad73b
humanhash: low-william-ceiling-april
File name:invoice.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:845'312 bytes
First seen:2023-03-28 12:30:09 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:3zKZG45cHHZyvtCQy1mDbMp2zr1sJpdznAyFqs:DKZ7aUtMsMp2WJpPqs
Threatray 2'406 similar samples on MalwareBazaar
TLSH T13005E004EC6A19B7F8D5C7B41450233A07A8BB995462E689CFFA28D93ECBB7344D404F
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)
Reporter Anonymous
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
240
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
invoice.exe
Verdict:
Malicious activity
Analysis date:
2023-03-28 12:30:46 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/c41afb73-3cd0-4c73-88fb-36baf87f794d

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/378159/
Detection(s):
Sanesecurity.Malware.28872.BadIN4.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Launching a process
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
clipbanker comodo darkkomet packed
Link:
https://www.filescan.io/uploads/6422de066ed02dd52de5a7e5/reports/e2e3a8e8-f09b-4422-a94e-a2a93912c132/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/a9e8c821bdf65ec3bf80857646168be279506f299cc85b44c1f87864757e6a43
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/fe60f00b-23a3-417b-948d-f10f29e3aac5
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1203422
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 836334 Sample: invoice.exe Startdate: 28/03/2023 Architecture: WINDOWS Score: 100 29 www.wearecatalyst.app 2->29 37 Snort IDS alert for network traffic 2->37 39 Malicious sample detected (through community Yara rule) 2->39 41 Antivirus detection for URL or domain 2->41 43 5 other signatures 2->43 9 invoice.exe 3 2->9         started        signatures3 process4 file5 27 C:\Users\user\AppData\...\invoice.exe.log, ASCII 9->27 dropped 55 Writes to foreign memory regions 9->55 57 Injects a PE file into a foreign processes 9->57 13 RegSvcs.exe 9->13         started        16 RegSvcs.exe 9->16         started        signatures6 process7 signatures8 59 Modifies the context of a thread in another process (thread injection) 13->59 61 Maps a DLL or memory area into another process 13->61 63 Sample uses process hollowing technique 13->63 65 Queues an APC in another process (thread injection) 13->65 18 explorer.exe 4 6 13->18 injected process9 dnsIp10 31 www.53876.world 103.107.236.133, 49693, 80 YISUCLOUDLTD-AS-APYISUCLOUDLTDHK Hong Kong 18->31 33 www.star-house.okinawa 183.181.84.3, 49706, 49707, 49708 VECTANTARTERIANetworksCorporationJP Japan 18->33 35 7 other IPs or domains 18->35 45 System process connects to network (likely due to code injection or exploit) 18->45 22 WWAHost.exe 13 18->22         started        25 autoconv.exe 18->25         started        signatures11 process12 signatures13 47 Tries to steal Mail credentials (via file / registry access) 22->47 49 Tries to harvest and steal browser information (history, passwords, etc) 22->49 51 Modifies the context of a thread in another process (thread injection) 22->51 53 Maps a DLL or memory area into another process 22->53
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a9e8c821bdf65ec3bf80857646168be279506f299cc85b44c1f87864757e6a43/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-03-23 11:10:42 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
22 of 37 (59.46%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vhumqin56zpmhp4aqv3emful4j4va3zjttefwrgb7b4gi5l6njbq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1159e2d483433bd5397e9a41dc4e8200fb927a6ca3192bb47eb6ae3a033ef94e
Formbook
179b98e2cb16a094755f853ae892b47948a8b6a83e7ca050d520e113ff180b2f
Formbook
49fe1618c14d32183b774338d27a474d16e05519bb3967940fb33e6af06170f0
Formbook
7d0f5a98613789c1f2ca5370d85e9b30348da8ce282ddbf9c5e53b1d3a05022d
Formbook
987f477e626f57c4ba440be3016995b5b9d7365a422c0a1d9be524e4993def8a
Formbook
bf03cd8e5554ec62c98931069f436ec71ac21d57a8922b1bb3c1958a0a9256f3
Formbook
c883e6286eeb6bf200ac5bf790b70ba5547f49d0fdc2b2626dccec7727fa7b70
Formbook
e1803249e33265318c9f806db079934571ee55c2554e001cee050bea59e06037
Formbook
fbf4c7eb349a55d1ff19fa05bf33bbe8c0264177c2d3907c5a97cedc61aa804e
Formbook
+ 2'396 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/230328-pp2emsba35/
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Gathers network information
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Program crash
Suspicious use of SetThreadContext
Loads dropped DLL
Unpacked files
SH256 hash:
c68a4adbe3705fb04206db506a1f275fac3ad292e2fb45917ef2e1406c56c28e
MD5 hash:
fac7829d741bf3358a161c7c96ae064f
SHA1 hash:
7b5636dc6c53bd1ebeb21f73b92a1c5e7c8fde7e
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/9741ae01-c010-4808-82e7-4b12f6633403/
Parent samples :
a9e8c821bdf65ec3bf80857646168be279506f299cc85b44c1f87864757e6a43
1b442bbacbc971f64a3bde3b15e0f287d032f6ed75c66dc2555874645aeb4dc3
d5c9eb88e84d396ab177225746e25d5a0ea92424e2225371145c2ccddff01934
SH256 hash:
76fdb5053adf81d54f6009f9b84cb4146dd5346d41283e18cb9a85145b3c4fac
MD5 hash:
4e823a7b122cd78b26cad3f2d50ac355
SHA1 hash:
94ddd5122173324004dad9ca62b90c73017205bf
Link:
https://www.unpac.me/results/9741ae01-c010-4808-82e7-4b12f6633403/
SH256 hash:
f0ba9db494b2a05fd20d61689623c6f9a491ec590d1160ca74128d784ae95994
MD5 hash:
df3a437c9573e660347abbdc43ea39f6
SHA1 hash:
c2011b1e6630903cebf8509ccd1fe54cedd4df2c
Link:
https://www.unpac.me/results/9741ae01-c010-4808-82e7-4b12f6633403/
SH256 hash:
d06df7395d561e198f9b7c5481567116ff2e4c2e84437c018d2a2c8ea6c4ca37
MD5 hash:
0fb6061f7d37424fb9e6d0e76b019c19
SHA1 hash:
98a64bf7b459f032d6ec5793003bf61b5ae1dd74
Link:
https://www.unpac.me/results/9741ae01-c010-4808-82e7-4b12f6633403/
Parent samples :
495607b1aef01bf7dfb64b5cb16a8fc0f161c2923627d71c69de97328f8eca3f
2434aa78b46a3afc98fa6e888c3eb56278ba52b0ff800e7e875af9c2e7f9011a
SH256 hash:
cde0d3400cd787fce5d1b95fa52908d64831430cc90dafddbaa79ae0d03bb3d0
MD5 hash:
06a5bc1d3143bcac174d81c5ffc09def
SHA1 hash:
650fb4549fb98ee4c7be5e03bf670241e6339cd0
Link:
https://www.unpac.me/results/9741ae01-c010-4808-82e7-4b12f6633403/
SH256 hash:
47ec5c518fedf87f8ad5f40ec3e6f68318618f06406bc589faab1336d9fa6eac
MD5 hash:
873646eab0faf47a286c3b13edebdb33
SHA1 hash:
3b7b0d5bde1a36d9cf7759d3e527665e565c2d24
Link:
https://www.unpac.me/results/9741ae01-c010-4808-82e7-4b12f6633403/
SH256 hash:
a9e8c821bdf65ec3bf80857646168be279506f299cc85b44c1f87864757e6a43
MD5 hash:
64972b7080043bd5823e8c6fe83ad73b
SHA1 hash:
d6db67800f0849593a0f07c54c85f404c2f4de2d
Link:
https://www.unpac.me/results/9741ae01-c010-4808-82e7-4b12f6633403/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a9e8c821bdf6/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a9e8c821bdf65ec3bf80857646168be279506f299cc85b44c1f87864757e6a43

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 a9e8c821bdf65ec3bf80857646168be279506f299cc85b44c1f87864757e6a43

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/378159/

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