MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4a62aa62e4dbe3f70ef100846e6c7d41bc4ce6a7825c3a5df5253f8314983025. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4a62aa62e4dbe3f70ef100846e6c7d41bc4ce6a7825c3a5df5253f8314983025
SHA3-384 hash: e3b9f018b1c075c4a19b4fab37966969c58a803795bd01f07b13d55ae8843b885f24e8d2c74a7bb615df2b8e7ccdcf18
SHA1 hash: 6fa4e961d508aeb4bcd3bf9ae6abf7f2dc2ee493
MD5 hash: 1493d3c610eab662b43ec8c8204f588f
humanhash: snake-finch-arizona-william
File name:询价.pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:286'306 bytes
First seen:2023-03-20 07:25:33 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:JYa6LlB//Xe1eNE8AIUCAfVB74MeC0IuGuIvzC:JYll3UCAVB7deCRuGrvzC
Threatray 2'451 similar samples on MalwareBazaar
TLSH T1E654120D5F75C973E4B352730DB90B36A6BB85161470CA8B83149BB97B22B81E94E743
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 7c8c8ccc84c6c5e1 (3 x Loki, 3 x RemcosRAT, 2 x Formbook)
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
202
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
询价.pdf.exe
Verdict:
Malicious activity
Analysis date:
2023-03-20 07:29:53 UTC
Tags:
stealer formbook trojan
Link:
https://app.any.run/tasks/1a584509-408b-483c-b8e2-a25095980b8b

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/375801/
Detection(s):
SecuriteInfo.com.Variant.Babar.172047.14284.23853.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Searching for synchronization primitives
Reading critical registry keys
Launching a process
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/74185/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
comodo nemesis overlay packed remcos shell32.dll
Link:
https://www.filescan.io/uploads/64180a9fc60b3295f52c07a2/reports/b8202a80-e418-43d2-abf2-86693ad92558/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/4a62aa62e4dbe3f70ef100846e6c7d41bc4ce6a7825c3a5df5253f8314983025
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/b1d2dfcb-f474-4a60-9ef4-a0d77a9423e9
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
evad.rans.troj.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1197389
Signature
Antivirus detection for URL or domain
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found potential ransomware demand text
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 domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
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)
Uses an obfuscated file name to hide its real file extension (double extension)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 830295 Sample: #U8be2#U4ef7.pdf.exe Startdate: 20/03/2023 Architecture: WINDOWS Score: 100 38 www.yeah-go.com 2->38 40 www.veles59.online 2->40 42 26 other IPs or domains 2->42 50 Snort IDS alert for network traffic 2->50 52 Multi AV Scanner detection for domain / URL 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 8 other signatures 2->56 12 #U8be2#U4ef7.pdf.exe 19 2->12         started        signatures3 process4 file5 36 C:\Users\user\AppData\Local\...\fswicshp.exe, PE32 12->36 dropped 15 fswicshp.exe 12->15         started        18 colorcpl.exe 12->18         started        process6 signatures7 76 Multi AV Scanner detection for dropped file 15->76 78 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 15->78 80 Maps a DLL or memory area into another process 15->80 20 fswicshp.exe 15->20         started        process8 signatures9 58 Modifies the context of a thread in another process (thread injection) 20->58 60 Maps a DLL or memory area into another process 20->60 62 Sample uses process hollowing technique 20->62 64 Queues an APC in another process (thread injection) 20->64 23 RAVCpl64.exe 20->23 injected process10 process11 25 chkdsk.exe 13 23->25         started        signatures12 66 Tries to steal Mail credentials (via file / registry access) 25->66 68 Tries to harvest and steal browser information (history, passwords, etc) 25->68 70 Writes to foreign memory regions 25->70 72 3 other signatures 25->72 28 explorer.exe 5 1 25->28 injected 32 firefox.exe 25->32         started        process13 dnsIp14 44 www.de-nagel.com 46.30.213.73, 49873, 49874, 49875 ONECOMDK Denmark 28->44 46 www.performingartshub.co.uk 217.160.0.64, 49807, 49808, 49810 ONEANDONE-ASBrauerstrasse48DE Germany 28->46 48 15 other IPs or domains 28->48 74 System process connects to network (likely due to code injection or exploit) 28->74 34 WerFault.exe 4 32->34         started        signatures15 process16
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4a62aa62e4dbe3f70ef100846e6c7d41bc4ce6a7825c3a5df5253f8314983025/
Threat name:
Win32.Trojan.Nsisx
Create hunting rule
Status:
Malicious
First seen:
2023-03-15 00:31:14 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
25 of 39 (64.10%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jjrkuyxe3pr7odxraccg43d5ig6ezzvhqjoduxpveu7ygfeygasq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
07a32665c106d4c5fab2625bda4d52f6c40b8137728f2ded016b90cad95a8545
Formbook
0e83b40d751f735b6088f7c998ed7dd3321527adecf03ad156d91120adccd9eb
Formbook
7ac2e4aad0054c77e7a2205d156da7032021be264702c8fa76eab7ebc44556ff
Formbook
80de560dcd30d364bc855a7ec22607f884b9f9f4e8989e85c2d71377c399f1d8
Formbook
82d448cb2461440d0ab1777690a41e228118c36961d8ee506ce94a9622b8af5d
Formbook
8dd634edea7c470fe551cc425ff6851db72af868b04b747e5c516d4743fa3055
Formbook
afbccae6537d0602edbc99ef03ec8b89ec23df241079f949c0b8a0aa6f9aa8f0
Formbook
c448049c359c9ada55dbdefbb772020aa3962804d485ccf52adefb3a2030e3fb
Formbook
c94cfe8d1abb19cac8d63d9b2d45cc311f04fb02f87a8fc3bde8646970a74fef
Formbook
ee818f26515fa5b367639b6b76c96c3dd04cb96a46cdf7037e19b97f6a630d07
Formbook
+ 2'441 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/230320-h9lflacc74/
Behaviour
Gathers network information
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Unpacked files
SH256 hash:
974f20478e3d1e61365baf813f345a9c5a2d27a8795e4f649b5cc44f37293356
MD5 hash:
a2e982c087e76cc6d7cda3c61fc8e6d2
SHA1 hash:
8c47d2526727e527020442ca9fc14710dfd427cc
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/76e221b9-4e21-4621-a1d7-635c89862a9a/
Parent samples :
768e93dbe738905b75a89ba17edae3c981219e7f0261b19cdc61a055c0bb51a2
38445abb6c7dd298fbbaad98a07b0909572ef3ffd42bb58cdfbd4b42e02aaa35
4a62aa62e4dbe3f70ef100846e6c7d41bc4ce6a7825c3a5df5253f8314983025
ab617df3930b1ed1ee3bf2dc4ec2db8db8fdba68ba5198183cbf96b75f37c972
SH256 hash:
a8eaaee48b2604b0232dae802b529dcab938c055a744237275543521fbd42994
MD5 hash:
4950375d351dc713604ce67b4d8a27b6
SHA1 hash:
eaec12b68eaf1db856b734bb4a2019d5ce58d9ce
Link:
https://www.unpac.me/results/76e221b9-4e21-4621-a1d7-635c89862a9a/
SH256 hash:
4218c2bbd8b23c59067b958f3cc71f425d60f473373549f12257b75e39506890
MD5 hash:
392ca98030e1afe1eeb122b221e0a3e6
SHA1 hash:
b68d9ef6162168e1875bd22568a9a460a3080b5f
Link:
https://www.unpac.me/results/76e221b9-4e21-4621-a1d7-635c89862a9a/
SH256 hash:
4a62aa62e4dbe3f70ef100846e6c7d41bc4ce6a7825c3a5df5253f8314983025
MD5 hash:
1493d3c610eab662b43ec8c8204f588f
SHA1 hash:
6fa4e961d508aeb4bcd3bf9ae6abf7f2dc2ee493
Link:
https://www.unpac.me/results/76e221b9-4e21-4621-a1d7-635c89862a9a/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.96
Link:
https://yomi.yoroi.company/submissions/4a62aa62e4dbe3f70ef100846e6c7d41bc4ce6a7825c3a5df5253f8314983025

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:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.
Rule name:win_formbook_w0
Create hunting rule
Author:@malgamy12

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

Executable exe 4a62aa62e4dbe3f70ef100846e6c7d41bc4ce6a7825c3a5df5253f8314983025

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/375801/

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