MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3c32f970eff96cb882dd705933628e2eeac0cb0a474ab0d34efafbbf750d219c. 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: 3c32f970eff96cb882dd705933628e2eeac0cb0a474ab0d34efafbbf750d219c
SHA3-384 hash: 44c8b02ea0ef4ee2687fc714e0ee554cf7df110be5e70e0355f77c0d54b84797ad6d76883432dc3b835942b37b854b1e
SHA1 hash: 439f2fd1ba25a927ea71f9e379abf1d7a3611f55
MD5 hash: dad0ac35615408b7510d33a1ca762852
humanhash: finch-may-maryland-double
File name:K4RIUzvyZoxEsjL.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:589'824 bytes
First seen:2022-06-17 13:22:38 UTC
Last seen:2022-06-17 19:23:34 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:cqyhjdrTsQdMTvLKPDo6mwE5IkNofktRlsLwvrrbrPB0Dp:8rTsQi+PDYwuIkNoSl1bd0t
TLSH T112C4E05032B4CBA7E6A963F2C4AA80F42775BE06FA41D56F6CC13FC17AB27D60505A13
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
266
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/280990/
Detection(s):
SecuriteInfo.com.IL.Trojan.MSILZilla.19314.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
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
Unauthorized injection to a recently created process
Creating a file
Launching cmd.exe command interpreter
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62ac8077b0582adf05adad07/reports/f6c5218d-bd85-405a-ab7f-b92800c3f5a7/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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0c0f0dcb-48d1-47ea-ac1e-ee9273ec76e9
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1015220
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
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 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
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 647716 Sample: K4RIUzvyZoxEsjL.exe Startdate: 17/06/2022 Architecture: WINDOWS Score: 100 48 www.homeworknft.com 2->48 50 ghs.googlehosted.com 2->50 52 Malicious sample detected (through community Yara rule) 2->52 54 Antivirus detection for URL or domain 2->54 56 Multi AV Scanner detection for dropped file 2->56 58 8 other signatures 2->58 11 K4RIUzvyZoxEsjL.exe 7 2->11         started        signatures3 process4 file5 38 C:\Users\user\AppData\Roaming\mmABRFqV.exe, PE32 11->38 dropped 40 C:\Users\...\mmABRFqV.exe:Zone.Identifier, ASCII 11->40 dropped 42 C:\Users\user\AppData\Local\...\tmpF0A0.tmp, XML 11->42 dropped 44 C:\Users\user\...\K4RIUzvyZoxEsjL.exe.log, ASCII 11->44 dropped 60 Uses schtasks.exe or at.exe to add and modify task schedules 11->60 62 Adds a directory exclusion to Windows Defender 11->62 64 Tries to detect virtualization through RDTSC time measurements 11->64 66 Injects a PE file into a foreign processes 11->66 15 K4RIUzvyZoxEsjL.exe 11->15         started        18 powershell.exe 25 11->18         started        20 schtasks.exe 1 11->20         started        signatures6 process7 signatures8 74 Modifies the context of a thread in another process (thread injection) 15->74 76 Maps a DLL or memory area into another process 15->76 78 Sample uses process hollowing technique 15->78 80 Queues an APC in another process (thread injection) 15->80 22 explorer.exe 15->22 injected 24 conhost.exe 18->24         started        26 conhost.exe 20->26         started        process9 process10 28 cmstp.exe 22->28         started        signatures11 68 Modifies the context of a thread in another process (thread injection) 28->68 70 Maps a DLL or memory area into another process 28->70 72 Tries to detect virtualization through RDTSC time measurements 28->72 31 cmd.exe 1 28->31         started        33 explorer.exe 152 28->33         started        process12 dnsIp13 36 conhost.exe 31->36         started        46 192.168.2.1 unknown unknown 33->46 process14
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3c32f970eff96cb882dd705933628e2eeac0cb0a474ab0d34efafbbf750d219c/
Threat name:
Win32.Spyware.Bobik
Create hunting rule
Status:
Malicious
First seen:
2022-06-17 12:32:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
10 of 41 (24.39%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=hqzps4hp7fwlraw5obmtgyuof3vmbsyki5flbu2o7l5365inegoa._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:b0e7 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220617-qmskdsefb2/
Behaviour
Creates scheduled task(s)
Enumerates system info in registry
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
Deletes itself
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
5eed568a6a9a014593d5bff25cf1e027aac3e319f2e2f03056a9a3f46dcf23e5
MD5 hash:
aaf52936d86d011a32da1aa8a9e50ca8
SHA1 hash:
99a9328f98daed800c0fd55f25013294b27a5434
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/8c9e2349-3623-47ab-84c1-417f3af65705/
Parent samples :
eaaac6aaed3693a3b985b49faf8af5ff9df1b1761cba58a10b5e5ce8fcc6ba81
3c32f970eff96cb882dd705933628e2eeac0cb0a474ab0d34efafbbf750d219c
SH256 hash:
ae31bc6f16debba9dc6b6623ca34e01e79774a0900b8803d7c4191f7f8fc8e8c
MD5 hash:
147b4e502eec7b03a9f89ccd99b7cc3b
SHA1 hash:
99bd515f79f3ef4b11e6b6fa7de1d2d33d987c61
Link:
https://www.unpac.me/results/8c9e2349-3623-47ab-84c1-417f3af65705/
SH256 hash:
84238dc32dc2c72716d7233f509b43a45617e2a24ca07eecda58ae37a704b90b
MD5 hash:
1d6115ad56b1707c8afa1a65f22afc96
SHA1 hash:
58cbf25298e84cf9d91da78ae370ac5ddbb2c3fd
Link:
https://www.unpac.me/results/8c9e2349-3623-47ab-84c1-417f3af65705/
SH256 hash:
bab33a1743a242e416a48c462445c4f198bc4a9dd6dcd0f5e4abbec1a890bea0
MD5 hash:
e3ce83c755f1e581a7f0389015d67fdf
SHA1 hash:
1d600c2fe6e85cab8de8cf7b7998c5bcbb121b86
Link:
https://www.unpac.me/results/8c9e2349-3623-47ab-84c1-417f3af65705/
SH256 hash:
3c32f970eff96cb882dd705933628e2eeac0cb0a474ab0d34efafbbf750d219c
MD5 hash:
dad0ac35615408b7510d33a1ca762852
SHA1 hash:
439f2fd1ba25a927ea71f9e379abf1d7a3611f55
Link:
https://www.unpac.me/results/8c9e2349-3623-47ab-84c1-417f3af65705/
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/3c32f970eff96cb882dd705933628e2eeac0cb0a474ab0d34efafbbf750d219c

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:exploit_any_poppopret
Create hunting rule
Author:Jeff White [karttoon@gmail.com] @noottrak
Description:Identify POP -> POP -> RET opcodes for quick ROP Gadget creation in target binaries.
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 3c32f970eff96cb882dd705933628e2eeac0cb0a474ab0d34efafbbf750d219c

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/280990/

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