MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4cb742927b299c24ca04c80d3ea10a5e3b4a5aa6508aba92c0e9e5fce2eebab1. 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: 15


Intelligence 15 IOCs YARA 3 File information Comments
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SHA256 hash: 4cb742927b299c24ca04c80d3ea10a5e3b4a5aa6508aba92c0e9e5fce2eebab1
SHA3-384 hash: e60844db491028db60e7f98fefda32fa22bbbb8db965da54ace84b13bbd2f360dffbdc4d57ac37bc378c6346142baa8f
SHA1 hash: d704664fc43e23608a9b77eea0fdc6c39aa93465
MD5 hash: 28166c3b533983c7a4f5256451ddf579
humanhash: september-saturn-magazine-earth
File name:Belgeleri kontrol edin.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:996'352 bytes
First seen:2022-08-08 07:53:04 UTC
Last seen:2022-08-08 08:40:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 24576:Qm0cfGyzgeKClCMMoux3rU+ut/sSdZ7e9IbUDHDl2:Qm0cfG9eIM5ux3futHv7UA
Threatray 14'451 similar samples on MalwareBazaar
TLSH T1F325AE17AFA47605E4F75BB9DC6B786183F63809713EE3782E90589B2DFA301D40162B
TrID 61.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.0% (.SCR) Windows screen saver (13101/52/3)
8.8% (.EXE) Win64 Executable (generic) (10523/12/4)
5.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon c6ccc84ec8cc8ad8 (10 x AgentTesla, 10 x Formbook, 7 x SnakeKeylogger)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
305
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Belgeleri kontrol edin.exe
Verdict:
Malicious activity
Analysis date:
2022-08-08 07:53:53 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/1410b057-6ff2-4c5a-b8ae-6d22b5805a7a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/297072/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1429.30025.4470.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
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
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
explorer.exe packed
Link:
https://www.filescan.io/uploads/62f0c15cbcf76fcb6cf5910b/reports/e40fe5da-0b5a-41d6-adc5-2ef6d7792d82/overview
Result
Verdict:
UNKNOWN
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/f7600916-d64f-47b4-a407-bb0c6d8407f8
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1047755
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Injects a PE file into a foreign processes
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 680245 Sample: Belgeleri kontrol edin.exe Startdate: 08/08/2022 Architecture: WINDOWS Score: 100 41 www.heartyoume-amazon.com 2->41 47 Malicious sample detected (through community Yara rule) 2->47 49 Yara detected AntiVM3 2->49 51 Yara detected FormBook 2->51 53 7 other signatures 2->53 11 Belgeleri kontrol edin.exe 7 2->11         started        signatures3 process4 file5 37 C:\Users\user\AppData\Roaming\wYcUqc.exe, PE32 11->37 dropped 39 C:\Users\user\AppData\Local\...\tmpD5B7.tmp, XML 11->39 dropped 57 Writes to foreign memory regions 11->57 59 Adds a directory exclusion to Windows Defender 11->59 61 Injects a PE file into a foreign processes 11->61 15 RegSvcs.exe 11->15         started        18 powershell.exe 25 11->18         started        20 schtasks.exe 1 11->20         started        signatures6 process7 signatures8 69 Modifies the context of a thread in another process (thread injection) 15->69 71 Maps a DLL or memory area into another process 15->71 73 Sample uses process hollowing technique 15->73 75 2 other signatures 15->75 22 explorer.exe 3 15->22 injected 26 conhost.exe 18->26         started        28 conhost.exe 20->28         started        process9 dnsIp10 43 www.themysterypodcast.com 22->43 45 parkingpage.namecheap.com 198.54.117.215, 49768, 80 NAMECHEAP-NETUS United States 22->45 55 System process connects to network (likely due to code injection or exploit) 22->55 30 wscript.exe 22->30         started        signatures11 process12 signatures13 63 Modifies the context of a thread in another process (thread injection) 30->63 65 Maps a DLL or memory area into another process 30->65 67 Tries to detect virtualization through RDTSC time measurements 30->67 33 cmd.exe 1 30->33         started        process14 process15 35 conhost.exe 33->35         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4cb742927b299c24ca04c80d3ea10a5e3b4a5aa6508aba92c0e9e5fce2eebab1/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2022-08-08 07:54:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
18
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=js3ufet3fgocjsqezagt5iikly5uuwvgkcflvewa5hs7zyxoxkyq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
089fdb9024c9f8436e2c2a7e0e8734266fe5d65bcdbaf99fac4a26b0879b29d9
Formbook
3d41a27a3491aad1be7fb88698abb2564f165a498e48ab4aded36da80420bcfd
Formbook
3e71d457ca114497a6b54846e2f6d571db0619199c046d4fed20bbc93d50e7bd
Formbook
712d9e2373914cd9231c6c55a5d919efa6df53194b2c06b03695501dde071760
Formbook
78fdca14f99e25685ccef65e154f5c747430a955c399adb72d32cd0e364a4780
Formbook
994dd288944c3ad3229fc696132b470fa0a6eaadf9b932cdd317df9313217f63
Formbook
a445c5a7219f02d53032566eeda84c273ff01d6184f476daf78b29fc57603e9a
Formbook
be0eb1bf95016367e097709002bfb12c31419a9d9214f5a743d61fec0869e94b
Formbook
d2d4fa8e5269186698ecf34401a56bd30201c4f2e0be41ad4acfa714342c2b83
Formbook
f6a2ab289569d6ab9ecdc198bda044a10591fb4dfb2178977abbe4fdf168df09
Formbook
+ 14'441 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:d1s6 rat spyware stealer trojan
Link:
https://tria.ge/reports/220808-jrjpqafegq/
Behaviour
Creates scheduled task(s)
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
Suspicious use of SetThreadContext
Checks computer location settings
Formbook payload
Formbook
Unpacked files
SH256 hash:
f07515f681b7b0e082d891c18c95462991eabbd75ecde54c212dd35d190d7a84
MD5 hash:
4fae6cb9dfa41f07494f3c7b1d3aa430
SHA1 hash:
9c5216c7050196aec5c2eac23375a5aab6b428a7
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
FormBook
Create hunting rule
Link:
https://www.unpac.me/results/a5f44467-bdc4-4e5a-8690-cd1f481bd422/
Parent samples :
72725c71078cc53ee2aff6812a6fe2a64cfa898bf28f6a818d2a2f0ad84bd46b
4cb742927b299c24ca04c80d3ea10a5e3b4a5aa6508aba92c0e9e5fce2eebab1
637f702a6f06a32c6b1794df68ccf1e7f29a2aa38b468b296816ba9010606a1a
61e02739fb76c2e56860acdbeda1ed43769648fc4e7908c31b7194ff94a3981d
9238603739f090fa4b311ab4c76739c1b54d21e410139c6be208025b4dd7a33f
61c8ca02306264110104d4803a15eacc1949f65dd2b1723f159ed3f93553a384
663a1d5b9cec98717c0c4007942db9627fd88ec897d21f80e6fa0ddce642e22e
bfac76ed38d1b5d2737a76ce7c59f1651040d11c1ec63388364e4cd37cc4fbee
7f247f33a3cfc5c0282c5a8730ff0ec2a37b20983832fe1de65d86eb1114e38d
SH256 hash:
a994739039a40982c840c39f57f274ec4a83415fe031394e013e76000e511e67
MD5 hash:
f52be3fe669e0406423101d403976339
SHA1 hash:
ed2904b9b227b5aea996a397fc46bc50c7561049
Link:
https://www.unpac.me/results/a5f44467-bdc4-4e5a-8690-cd1f481bd422/
SH256 hash:
642d5b8aa52ca35d8386a5b4302aa503d330753426dd950e6c2a47efdbb4b7e2
MD5 hash:
2e85fdecd9837f0895ee6568f97b3cfd
SHA1 hash:
a4df92cf9adfa1c7d26f6d19923cbfa4cbfc596f
Link:
https://www.unpac.me/results/a5f44467-bdc4-4e5a-8690-cd1f481bd422/
SH256 hash:
9b4aee132a0228378d66a57fda3a2030952309ef74cf2db724ac916b04d8c034
MD5 hash:
93c6391d23c1aa1ed66fb13f82f2ee31
SHA1 hash:
220098c3047c32b51ae13a5cc1e9beeef3da6e18
Link:
https://www.unpac.me/results/a5f44467-bdc4-4e5a-8690-cd1f481bd422/
SH256 hash:
23426ad699ed0d5d28653af958ed6bfc216ed99f3920896ddb66d64efe976cb4
MD5 hash:
cdf3219715e1380c1aa9580f293d69ad
SHA1 hash:
02c56511fc993e791af46fe03541e2399a8da530
Link:
https://www.unpac.me/results/a5f44467-bdc4-4e5a-8690-cd1f481bd422/
SH256 hash:
4cb742927b299c24ca04c80d3ea10a5e3b4a5aa6508aba92c0e9e5fce2eebab1
MD5 hash:
28166c3b533983c7a4f5256451ddf579
SHA1 hash:
d704664fc43e23608a9b77eea0fdc6c39aa93465
Link:
https://www.unpac.me/results/a5f44467-bdc4-4e5a-8690-cd1f481bd422/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4cb742927b29/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/4cb742927b299c24ca04c80d3ea10a5e3b4a5aa6508aba92c0e9e5fce2eebab1

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: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 4cb742927b299c24ca04c80d3ea10a5e3b4a5aa6508aba92c0e9e5fce2eebab1

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/297072/

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