MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bdfb763b51cd4a618ad0d10388f1f478d1acddc7917891a990e8f390c9319b76. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments
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SHA256 hash: bdfb763b51cd4a618ad0d10388f1f478d1acddc7917891a990e8f390c9319b76
SHA3-384 hash: dd513613cc0370a59af5b2389de1589969fa108e3538b9929f86f3fa3f15db096aa9f6c4b28a43b848bcd533b2eba520
SHA1 hash: 5a851452118c729d94b99f83c85cd819f5f96de6
MD5 hash: 51beaa7443a361691a0cbef6e56d890b
humanhash: romeo-louisiana-queen-autumn
File name:CC2107139144.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:876'544 bytes
First seen:2022-01-25 10:03:39 UTC
Last seen:2022-01-25 11:30:24 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:K+H9nK3NCltwwCQi5lcIIEbtzObGXXANTCsz71F3bDAyS6kKm5gxuOlsVedxj:K29nUNClKsQXtzObrCEkakKmwrdx
Threatray 12'882 similar samples on MalwareBazaar
TLSH T10115E0046FB4CB62C17A5BF814F220188BB5396AA93DE5D92CC752DA4BF9F20C161F17
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
148
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
CC2107139144.exe
Verdict:
Malicious activity
Analysis date:
2022-01-25 10:10:09 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/111e4a55-89b8-46cc-b581-7e892ad0509b

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/222324/
Detection(s):
SecuriteInfo.com.BackDoor.SpyBotNET.25.3051.31675.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
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
Sending an HTTP GET request
Launching cmd.exe command interpreter
Searching for the window
Creating a window
DNS request
Sending a custom TCP request
Сreating synchronization primitives
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61efcb1b0f8c757253e64a31/reports/cd7c6397-476b-4fa9-a02a-e2173b0c5614/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/d3f873fe-756e-4566-b98c-c2a4a5ed8569
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/927162
Signature
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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
Self deletion via cmd delete
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicius Add Task From User AppData Temp
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses netsh to modify the Windows network and firewall settings
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 signatures2 2 Behavior Graph ID: 559637 Sample: CC2107139144.exe Startdate: 25/01/2022 Architecture: WINDOWS Score: 100 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 Antivirus detection for URL or domain 2->49 51 10 other signatures 2->51 9 CC2107139144.exe 7 2->9         started        13 explorer.exe 5 150 2->13         started        process3 file4 37 C:\Users\user\AppData\...\syYqoKuzIfgUfe.exe, PE32 9->37 dropped 39 C:\...\syYqoKuzIfgUfe.exe:Zone.Identifier, ASCII 9->39 dropped 41 C:\Users\user\AppData\Local\...\tmp64DD.tmp, XML 9->41 dropped 43 C:\Users\user\...\CC2107139144.exe.log, ASCII 9->43 dropped 63 Uses schtasks.exe or at.exe to add and modify task schedules 9->63 65 Adds a directory exclusion to Windows Defender 9->65 67 Tries to detect virtualization through RDTSC time measurements 9->67 15 CC2107139144.exe 9->15         started        18 powershell.exe 25 9->18         started        20 schtasks.exe 1 9->20         started        signatures5 process6 signatures7 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 Queues an APC in another process (thread injection) 15->75 22 help.exe 15->22         started        25 explorer.exe 15->25 injected 27 conhost.exe 18->27         started        29 conhost.exe 20->29         started        process8 signatures9 53 Self deletion via cmd delete 22->53 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 31 cmd.exe 22->31         started        61 Uses netsh to modify the Windows network and firewall settings 25->61 33 netsh.exe 25->33         started        process10 process11 35 conhost.exe 31->35         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bdfb763b51cd4a618ad0d10388f1f478d1acddc7917891a990e8f390c9319b76/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-01-25 08:51:28 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
20 of 28 (71.43%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xx5xmo2rzvfgdcwq2ebyr4pupdi2zxohsf4jdkmq5dzzbsjrtn3a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
043b45f9d94820186d7324c5f6e0fd7661de15ad29104fd43294e2f3839efa06
Formbook
087b99ad356f223d93d3ecc23c1fa2cd098c56cbc689dc4d668bc50879305ff0
Formbook
2ac830fd4c5c4c3522b5cb9983edc13f2580b932875bc9daeb02633b8829fb3b
Formbook
2ed8aeaf73ee1a3caf7eb0be7814868c4100efbe1b021e2d964db3b638dc7f3c
Formbook
4c5887639c1dfcc0349690d98e9c8034029a6fa2f2e6bdbba96371bf23ce3301
Formbook
4fd44b1855341a3f6f31e08e4ad288747ecb8e5b8637b95fff99aa689de07446
Formbook
7024147e75938acd54b804df172c63b57c794e1980632c5f8190ae1e9d0da82a
Formbook
711f3855c0fe6398f1fdb5a870de829c005b60cd4c90bd8ecae5780b9427716f
Formbook
92c90d735148f7fd056e2d53bf44239f3fdab6b029e78d3ed6077d9c7f40aef2
Formbook
ec575e5cdf3da323c27e65f3042586173ca50ba0682b733a61f0b47f80c3004e
Formbook
+ 12'872 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:v32s rat spyware stealer trojan
Link:
https://tria.ge/reports/220125-l3yzwsdgf8/
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
Deletes itself
Formbook Payload
Formbook
Unpacked files
SH256 hash:
f62ebbfcf693a6a69684b0338bbf15808445ed81d1edb1aee6701882f216cc9c
MD5 hash:
8dd708ed57fcbe25fdd6ffacfcc6157c
SHA1 hash:
e3f14c7976145114f263768936b95bd57e1488dd
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/bbd84727-b4e9-4249-9f87-be685a1d4ed2/
Parent samples :
81587d1883eba143c62f4247410fb283f2c6f07620acfa357aa41bb84a5eae81
bdfb763b51cd4a618ad0d10388f1f478d1acddc7917891a990e8f390c9319b76
SH256 hash:
4e0452311a24df228dd82f39ba8107e608e788e31158694281656f5b3bec122d
MD5 hash:
c78c0f1663dde2649a1d86a2f275a497
SHA1 hash:
716d809e1c48f6914008773a0ee1e97e2925d485
Link:
https://www.unpac.me/results/bbd84727-b4e9-4249-9f87-be685a1d4ed2/
SH256 hash:
8325a5cf7942bb46ac528c836b79180c05d71a4e7de108693d303d56bcc5def1
MD5 hash:
efdf2c54a74297c24bc73285376c432b
SHA1 hash:
564f25afb6c5599cdcd5fafaff32c1475e581af4
Link:
https://www.unpac.me/results/bbd84727-b4e9-4249-9f87-be685a1d4ed2/
SH256 hash:
bdfb763b51cd4a618ad0d10388f1f478d1acddc7917891a990e8f390c9319b76
MD5 hash:
51beaa7443a361691a0cbef6e56d890b
SHA1 hash:
5a851452118c729d94b99f83c85cd819f5f96de6
Link:
https://www.unpac.me/results/bbd84727-b4e9-4249-9f87-be685a1d4ed2/
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/bdfb763b51cd4a618ad0d10388f1f478d1acddc7917891a990e8f390c9319b76

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: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 bdfb763b51cd4a618ad0d10388f1f478d1acddc7917891a990e8f390c9319b76

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/222324/

Comments