MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9c3637d925b3bb46ad68e7667e5958cc6e0926d9b12f022c6e0e990d63f45a9d. 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: 9c3637d925b3bb46ad68e7667e5958cc6e0926d9b12f022c6e0e990d63f45a9d
SHA3-384 hash: 8e93548f96dc8697f4c59f365f09287733bf8e68e8523af832361d967a9272738615cba1fe002327e0a8c9d5a0bf3e75
SHA1 hash: 837d84a42a03f0cf2b8f6cd6898f5b89d0c717f2
MD5 hash: 35065fb8357c2e1d99b1dcfd12af2732
humanhash: dakota-winter-cola-one
File name:PURCHASE ORDER 4501226854_xlsx.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:735'744 bytes
First seen:2023-11-10 06:59:39 UTC
Last seen:2023-11-10 08:22:15 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:j8Y1Faf6B4905QedOtE5bp7tK/qVqiLxKMiK:QY1Fax9fedOW5PK/uXi
TLSH T1C9F47B3D5DAD1637C1BADFB58FC5906BF0D0A9AB7151ADB4A4D303AA4342A46F4C023E
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)
Reporter cocaman
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
270
Origin country :
CH CH
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Trojan.Inject4.59820.13051.23468.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/654dd4fa946b6ab2245d760c/reports/fa6a75cd-d042-440e-8b60-55452455986f/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/9c3637d925b3bb46ad68e7667e5958cc6e0926d9b12f022c6e0e990d63f45a9d
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/6551650e-ba60-4247-81df-a903f69407ec
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1340312
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Adds a directory exclusion to Windows Defender
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)
Multi AV Scanner detection for submitted file
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1340312 Sample: PURCHASE_ORDER_4501226854_x... Startdate: 10/11/2023 Architecture: WINDOWS Score: 96 18 Malicious sample detected (through community Yara rule) 2->18 20 Multi AV Scanner detection for submitted file 2->20 22 Yara detected FormBook 2->22 24 5 other signatures 2->24 7 PURCHASE_ORDER_4501226854_xlsx.exe 4 2->7         started        process3 signatures4 26 Adds a directory exclusion to Windows Defender 7->26 28 Injects a PE file into a foreign processes 7->28 10 powershell.exe 23 7->10         started        12 PURCHASE_ORDER_4501226854_xlsx.exe 7->12         started        process5 process6 14 conhost.exe 10->14         started        16 WerFault.exe 22 16 12->16         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/9c3637d925b3bb46ad68e7667e5958cc6e0926d9b12f022c6e0e990d63f45a9d
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/9c3637d925b3bb46ad68e7667e5958cc6e0926d9b12f022c6e0e990d63f45a9d/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2023-11-09 13:24:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=tq3dpwjfwo5unlli45th4wkyzrxasjwzwexqeldob2mq2y7ulkoq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/231110-hsmx4adc4s/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Loads dropped DLL
Unpacked files
SH256 hash:
905f9cac0c46040cb225556a83a536e66e8f08bf39d8ad4787cfb91a45005af6
MD5 hash:
d2f80bad148f04c9fb61f800b0b69fe9
SHA1 hash:
46ffbc18790030159f22d344b942d0e6f821a831
Link:
https://www.unpac.me/results/70672468-9e37-4733-ae66-4db70e10b0b5/
SH256 hash:
4affe8eccb0183654f4aac08808d02460316b8283441609bb78bc14babdd6f7a
MD5 hash:
90e303cc3cf75bfed919c4b8c384f3a9
SHA1 hash:
54375c92aedacc97722bf91f1c762d3a08a09163
Link:
https://www.unpac.me/results/70672468-9e37-4733-ae66-4db70e10b0b5/
SH256 hash:
d01f3dea3851602ba5a0586c60430d286adf6fcc7e17aab080601a66630606e5
MD5 hash:
579197d4f760148a9482d1ebde113259
SHA1 hash:
cf6924eb360c7e5a117323bebcb6ee02d2aec86d
Link:
https://www.unpac.me/results/70672468-9e37-4733-ae66-4db70e10b0b5/
SH256 hash:
c4caadc260c0f382bb005bafc015209a5ec8e950cbd04bb0721aa09792cf5a87
MD5 hash:
4cf96ebc27df44fbbaecfeddca952227
SHA1 hash:
68de11b34e3c32aa46f19065008a77f7ec396450
Link:
https://www.unpac.me/results/70672468-9e37-4733-ae66-4db70e10b0b5/
SH256 hash:
bfef9eac82e53e8d63bcb3b3022880eaf8f22cbbc6c69f3782b59c438f649f12
MD5 hash:
ddf81912128dd196140e9be656c3a212
SHA1 hash:
51221baf7115f7f2de03cd00b8b25cfde9241a35
Link:
https://www.unpac.me/results/70672468-9e37-4733-ae66-4db70e10b0b5/
SH256 hash:
9c3637d925b3bb46ad68e7667e5958cc6e0926d9b12f022c6e0e990d63f45a9d
MD5 hash:
35065fb8357c2e1d99b1dcfd12af2732
SHA1 hash:
837d84a42a03f0cf2b8f6cd6898f5b89d0c717f2
Link:
https://www.unpac.me/results/70672468-9e37-4733-ae66-4db70e10b0b5/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/9c3637d925b3/report/overview.html
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/9c3637d925b3bb46ad68e7667e5958cc6e0926d9b12f022c6e0e990d63f45a9d

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:NET
Create hunting rule
Author:malware-lu
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

z 90ab81c85dc4579b44691ecb394bc7faf1819d635a51497ad94b9539081446b4

Formbook

Executable exe 9c3637d925b3bb46ad68e7667e5958cc6e0926d9b12f022c6e0e990d63f45a9d

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 90ab81c85dc4579b44691ecb394bc7faf1819d635a51497ad94b9539081446b4
  
Dropped by
MD5 56e227905a1436fc9f47d3bd8adf6ef7

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