MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4e98a7f7084a5fa80d8e1dd45e8b8f8a1f9fc891d223cc265524cfcfe3c57c0b. 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: 7


Intelligence 7 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4e98a7f7084a5fa80d8e1dd45e8b8f8a1f9fc891d223cc265524cfcfe3c57c0b
SHA3-384 hash: 1b64cb3d54c06bf957f67ea2418c4f8ab8d1cbbc4eb0ba1a2dcbbc739fd73dc816147455efab564efd3e0d7d8117402d
SHA1 hash: 47db216e2b070968fa37511338b87c29888495fb
MD5 hash: 614210319563ddeb523f35f20e4e6921
humanhash: diet-nevada-seven-cardinal
File name:614210319563ddeb523f35f20e4e6921.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:471'040 bytes
First seen:2020-11-19 09:27:38 UTC
Last seen:2020-11-19 10:35:40 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:puzL2iUWuhKbbB5Hben3KkCNHmC7jvSxkO+Cqd:szZ3bbBtbHkEHm
Threatray 3'039 similar samples on MalwareBazaar
TLSH 7BA4AE9CB51476DFC85BC5B59AA8EC74A6603CA7931B924385D31CEBB91CAC2CF140E3
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
151
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.BehavesLike.Win32.Generic.gc.8115.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
Forced shutdown of a system process
Unauthorized injection to a system process
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.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/542619
Signature
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 320408 Sample: Okwt8fW5KH.exe Startdate: 19/11/2020 Architecture: WINDOWS Score: 100 31 www.techlez.com 2->31 39 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Multi AV Scanner detection for submitted file 2->43 45 5 other signatures 2->45 11 Okwt8fW5KH.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\Okwt8fW5KH.exe.log, ASCII 11->29 dropped 55 Tries to detect virtualization through RDTSC time measurements 11->55 15 Okwt8fW5KH.exe 11->15         started        signatures6 process7 signatures8 57 Modifies the context of a thread in another process (thread injection) 15->57 59 Maps a DLL or memory area into another process 15->59 61 Sample uses process hollowing technique 15->61 63 Queues an APC in another process (thread injection) 15->63 18 explorer.exe 15->18 injected process9 dnsIp10 33 www.nielsensurevey.com 192.187.111.220, 49720, 80 NOCIXUS United States 18->33 35 www.financingfordentalwork.com 66.43.48.28, 49721, 80 NETELLIGENTCA Canada 18->35 37 2 other IPs or domains 18->37 47 System process connects to network (likely due to code injection or exploit) 18->47 22 help.exe 18->22         started        signatures11 process12 signatures13 49 Modifies the context of a thread in another process (thread injection) 22->49 51 Maps a DLL or memory area into another process 22->51 53 Tries to detect virtualization through RDTSC time measurements 22->53 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4e98a7f7084a5fa80d8e1dd45e8b8f8a1f9fc891d223cc265524cfcfe3c57c0b/
Threat name:
ByteCode-MSIL.Trojan.Sudloader
Create hunting rule
Status:
Malicious
First seen:
2020-11-19 06:40:44 UTC
AV detection:
22 of 28 (78.57%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
143848b6d47c7c571df87a7dee1892aa571b94fca0d9d60c6b7a2141f644950a
Formbook
410b12d131a36c0b5be88c52e6ad02a1e50b20c4d80f30de42ea5a260fc92624
Formbook
46c3ab59682596a8e030fb0bad3d31c59e502f68b9f3c112309edd82d27513c3
Formbook
718d659864d771ebadf82d8b5461d39c2bd6bd514ea2d2273d2821a23ab28ed0
Formbook
73c2d8d44daa16a7b406b82cd5201483ae40404037e7a543ad91689cbced81ad
Formbook
765c1e7486aedffd7021ae5f15c86e549c7b796a5025249781f9c8a6327f4037
Formbook
a998850fc7940055baac6f61dde2d0e29836c9386ac87555549eeaa1a9998401
Formbook
af61853ca27001c0721463fce68bb033a9084e9fcd0c6ced3acd7fc3ea0e957a
Formbook
d085d4d4370b02036dfe9de7c9061d88a8a5cd12cbced6dbdca9ba217112375c
Formbook
fa1c05c7ea1e94e08982755ca1d13051a6cd334fa3e93aa98b5bcc2ebb910f59
Formbook
+ 3'029 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/201119-j2xwkc5kle/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Modifies service
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.mybriefbox.com/sdk/
Unpacked files
SH256 hash:
4e98a7f7084a5fa80d8e1dd45e8b8f8a1f9fc891d223cc265524cfcfe3c57c0b
MD5 hash:
614210319563ddeb523f35f20e4e6921
SHA1 hash:
47db216e2b070968fa37511338b87c29888495fb
Link:
https://www.unpac.me/results/d2208398-daee-4690-9779-f39ed73820cb/
SH256 hash:
bd76e682ec3b554846caa8bab247d67dd243b1cb4b62a0cc8d8f21cc8115c4b5
MD5 hash:
ee3cc76c100bdf2f9c5dab63bf540b73
SHA1 hash:
7f1d907ad273395d35256d9cedeb8c23d3fe465e
Link:
https://www.unpac.me/results/d2208398-daee-4690-9779-f39ed73820cb/
SH256 hash:
cb951f1d2b5460456aad0d89cef1216d9be5e51784d11a92447d43e96177bd5e
MD5 hash:
8cd5d2014866f4ef60802ff1826998a6
SHA1 hash:
8ff75946905d0b117080cc5a07e6e0bbea4e9bbd
Link:
https://www.unpac.me/results/d2208398-daee-4690-9779-f39ed73820cb/
SH256 hash:
d4acd33258b1d3ed7b0aee563686718cfe4e47fa16b002efdecd03b6eae7394b
MD5 hash:
88f7bb341e6d5f3c2a94fa5de3603371
SHA1 hash:
d3be8988a2bf621993bcd71ebf7ecf4e1d60799d
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/d2208398-daee-4690-9779-f39ed73820cb/
Parent samples :
a998850fc7940055baac6f61dde2d0e29836c9386ac87555549eeaa1a9998401
765c1e7486aedffd7021ae5f15c86e549c7b796a5025249781f9c8a6327f4037
af61853ca27001c0721463fce68bb033a9084e9fcd0c6ced3acd7fc3ea0e957a
d085d4d4370b02036dfe9de7c9061d88a8a5cd12cbced6dbdca9ba217112375c
410b12d131a36c0b5be88c52e6ad02a1e50b20c4d80f30de42ea5a260fc92624
4e98a7f7084a5fa80d8e1dd45e8b8f8a1f9fc891d223cc265524cfcfe3c57c0b
Please note that we are no longer able to provide a coverage score for Virus Total.

File information

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

Web download

Formbook

Executable exe 4e98a7f7084a5fa80d8e1dd45e8b8f8a1f9fc891d223cc265524cfcfe3c57c0b

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/831968/
  
Delivery method
Distributed via web download

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