MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2537720d5a68fae9bd2bd01925102deb25af75b86fbdc295f166efc97e636cfe. 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 2 File information Comments
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SHA256 hash: 2537720d5a68fae9bd2bd01925102deb25af75b86fbdc295f166efc97e636cfe
SHA3-384 hash: 4889b4e1b898a758fd0eae75ce5cf9b1f6860d6a03ec847ec546ad3ba6b823a4275003e39841927e787436b8792f291b
SHA1 hash: 07a4cc5d2691cbada0dd9d7a1cb766bda1a440a2
MD5 hash: f319f4e7157fe7b8508c39018ef7e0d1
humanhash: four-paris-seven-emma
File name:sss544329087.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:246'491 bytes
First seen:2022-04-19 15:05:46 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 56a78d55f3f7af51443e58e0ce2fb5f6 (719 x GuLoader, 451 x Formbook, 295 x Loki)
ssdeep 3072:l1NjcVVnLpPunbNcUiNcX2i9jFfuXEwwAhBaWe9wLftAJVGQ1GYLqgK/50SYO+Ko:HNeZmxiLiS0Ua0r2JQQfqgK/mYi0m4rq
Threatray 15'200 similar samples on MalwareBazaar
TLSH T16C3412197B61C832DDD541331BBA7B2F3B56B62516609A2B17322F4ABC217C3BC0D362
TrID 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
16.4% (.EXE) Win64 Executable (generic) (10523/12/4)
10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.0% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter malwarelabnet
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
262
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/264652/
Detection(s):
SecuriteInfo.com.Trojan.NSISX.Spy.Gen.2.6896.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Searching for the window
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
Setting browser functions hooks
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control.exe overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/625ecfdd482f2f41cad29f43/reports/5d2a3337-14de-41a8-bce7-e37643a8970c/overview
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b07e0e45-f348-4224-b29d-ec20f32fb50a
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/978950
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
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 dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 611437 Sample: sss544329087.exe Startdate: 19/04/2022 Architecture: WINDOWS Score: 100 37 www.krdz28.online 2->37 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 Antivirus detection for URL or domain 2->51 53 4 other signatures 2->53 11 sss544329087.exe 18 2->11         started        signatures3 process4 file5 35 C:\Users\user\AppData\Local\Temp\ufylwh.exe, PE32 11->35 dropped 14 ufylwh.exe 1 11->14         started        process6 signatures7 61 Multi AV Scanner detection for dropped file 14->61 63 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 14->63 65 Tries to detect virtualization through RDTSC time measurements 14->65 67 Injects a PE file into a foreign processes 14->67 17 ufylwh.exe 14->17         started        20 conhost.exe 14->20         started        process8 signatures9 39 Modifies the context of a thread in another process (thread injection) 17->39 41 Maps a DLL or memory area into another process 17->41 43 Sample uses process hollowing technique 17->43 45 Queues an APC in another process (thread injection) 17->45 22 control.exe 17->22         started        25 explorer.exe 17->25 injected process10 signatures11 55 Modifies the context of a thread in another process (thread injection) 22->55 57 Maps a DLL or memory area into another process 22->57 59 Tries to detect virtualization through RDTSC time measurements 22->59 27 cmd.exe 1 22->27         started        29 explorer.exe 2 150 22->29         started        31 autochk.exe 25->31         started        process12 process13 33 conhost.exe 27->33         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/2537720d5a68fae9bd2bd01925102deb25af75b86fbdc295f166efc97e636cfe/
Threat name:
Win32.Trojan.FormBook
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Status:
Malicious
First seen:
2022-04-19 14:42:06 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
24 of 26 (92.31%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=eu3xedk2nd5otpjl2amskebn5ms265nyn664ffprm3x4s7tdnt7a._file
Verdict:
malicious
Label(s):
formbook
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Similar samples:
0ba2f6257fb96db81026615bb726f0ede3ea3263f2f79989cbab3f7e3cff97a1
Formbook
2388aba5e29792fc92af726882eb073d8d896640df9926d0dcd7565e2ee41cce
Formbook
3c010d88a118ba3cc666e05c6f8f82159ac38e5486b5ed60c65d870287b8cff6
Formbook
6ef2ea041f80bf832a51dcd24a4b42a16827176e7c677d479055de3c994793e5
Formbook
bc09ecf5cb6364f4d053ec0420282fa6e7a1649a8a5ca2af2ca933aa27f8b90c
Formbook
c0760105fed05b99698c3f1e5bb6ed6e2e9b386315d0e187cd075b8ed5ea7fe5
Formbook
cbf7dac8ee4dd46d48f7a0d6f0495d3d27ef5319fd05ace04aea7bfe96fe99c7
Formbook
ff3e94ded64b43f620ba549db99baa31abdd763209b60f7c9fc884b82cfac6d3
Formbook
+ 15'190 additional samples on MalwareBazaar
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:sn31 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220419-sgq6gsdddm/
Behaviour
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
Loads dropped DLL
Executes dropped EXE
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
b02dc5b7e58275ad45eb4df02325f5fca9204fa17b52d33bdbc50ffdc6d46e3c
MD5 hash:
6172516b2cf7a0ce0ee0e31f64161e13
SHA1 hash:
877e795a74b2bc6ceffcd6b141e0acc97beb21d7
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/98e19b3d-9a74-41ed-933c-4676e75bb6c4/
Parent samples :
dc44140377b017e013ca665c49ebacd386d4a4ca19329e77d9dfbb86010e66a5
2537720d5a68fae9bd2bd01925102deb25af75b86fbdc295f166efc97e636cfe
77c54b077789c0f6523b29fec23823227ffeca21d82c627e63f92d95b59e1905
35edcaa0f180ef140f70ee241a648c6335cf3055dcf2d6074d5ef7966b55925d
47796a46d5c191e29988d2d657332b3d7f9f5278b3951049e98f80a2b0c11d5e
SH256 hash:
5b330f5d056010bd1e47e59798d6212d1d4c7dd54d75b6365e9a1eb9aa87b25a
MD5 hash:
5db29f1b8631c1b1ae28440a3c53fb8a
SHA1 hash:
97ff85dfa7f011191e01e6a13dd1b3d2a67baac4
Link:
https://www.unpac.me/results/98e19b3d-9a74-41ed-933c-4676e75bb6c4/
SH256 hash:
2537720d5a68fae9bd2bd01925102deb25af75b86fbdc295f166efc97e636cfe
MD5 hash:
f319f4e7157fe7b8508c39018ef7e0d1
SHA1 hash:
07a4cc5d2691cbada0dd9d7a1cb766bda1a440a2
Link:
https://www.unpac.me/results/98e19b3d-9a74-41ed-933c-4676e75bb6c4/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/2537720d5a68/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/2537720d5a68fae9bd2bd01925102deb25af75b86fbdc295f166efc97e636cfe

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:malware_Formbook_strings
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Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/264652/

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