MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fd5aa67ff2ae6837aaf729665b08947c23a7b5cbb1f0c9fba82ebb95ddafcf24. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fd5aa67ff2ae6837aaf729665b08947c23a7b5cbb1f0c9fba82ebb95ddafcf24
SHA3-384 hash: b6ac72e332bbbe24373b9f1025acaf19bde6bff0ea81b09dabe31339c85ef989e63f165418ae7adf82908a8e28dc1851
SHA1 hash: 31b17e7ed6e081db59be717e1d328dece835f2bb
MD5 hash: fbbe027607216d309ef8818255cda955
humanhash: louisiana-oven-michigan-delaware
File name:1Vq5FOYAA0fSEnk.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:511'488 bytes
First seen:2020-10-20 08:31:54 UTC
Last seen:2020-10-25 18:21:50 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:972XAHrCVYM6MkWCLHWYo0oS89A1GKZHNYPzod88h:97m4e4Mk3iIkA1GUKzod
Threatray 2'557 similar samples on MalwareBazaar
TLSH 21B4020055AAEB37E3BE5BF5206C151E9BF5445E3723E22C4EE136EA2692F908F40D53
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
69
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/73348/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Launching cmd.exe command interpreter
Setting browser functions hooks
Enabling autorun by creating a file
Unauthorized injection to a system process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/497379
Signature
Binary contains a suspicious time stamp
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)
Modifies the prolog of user mode functions (user mode inline hooks)
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
Sigma detected: Scheduled temp file as task from temp location
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
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 300896 Sample: 1Vq5FOYAA0fSEnk.exe Startdate: 20/10/2020 Architecture: WINDOWS Score: 100 41 www.mjhex.com 2->41 49 Malicious sample detected (through community Yara rule) 2->49 51 Multi AV Scanner detection for dropped file 2->51 53 Sigma detected: Scheduled temp file as task from temp location 2->53 55 9 other signatures 2->55 11 1Vq5FOYAA0fSEnk.exe 6 2->11         started        signatures3 process4 file5 35 C:\Users\user\AppData\Roaming\Rvuxrpbw.exe, PE32 11->35 dropped 37 C:\Users\user\AppData\Local\...\tmp425A.tmp, XML 11->37 dropped 39 C:\Users\user\...\1Vq5FOYAA0fSEnk.exe.log, ASCII 11->39 dropped 59 Tries to detect virtualization through RDTSC time measurements 11->59 61 Injects a PE file into a foreign processes 11->61 15 1Vq5FOYAA0fSEnk.exe 11->15         started        18 schtasks.exe 1 11->18         started        20 1Vq5FOYAA0fSEnk.exe 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 Queues an APC in another process (thread injection) 15->75 22 explorer.exe 15->22 injected 26 conhost.exe 18->26         started        process9 dnsIp10 43 fwd3.hosts.co.uk 85.233.160.23, 49815, 80 ISIONUKNamescoLimitedGB United Kingdom 22->43 45 www.shannonballcoach.com 35.197.119.180, 49778, 80 GOOGLEUS United States 22->45 47 www.ladyofluggage.com 22->47 57 System process connects to network (likely due to code injection or exploit) 22->57 28 wlanext.exe 22->28         started        signatures11 process12 signatures13 63 Modifies the context of a thread in another process (thread injection) 28->63 65 Maps a DLL or memory area into another process 28->65 67 Tries to detect virtualization through RDTSC time measurements 28->67 31 cmd.exe 1 28->31         started        process14 process15 33 conhost.exe 31->33         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/fd5aa67ff2ae6837aaf729665b08947c23a7b5cbb1f0c9fba82ebb95ddafcf24/
Threat name:
ByteCode-MSIL.Trojan.Agentesla
Create hunting rule
Status:
Malicious
First seen:
2020-10-20 03:13:04 UTC
AV detection:
23 of 28 (82.14%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=7vnkm77svzudpkxxfftfwceupqr2pnolwhymt65if25zlxnpz4sa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0d5af6ad459d48db0b27ab6ab4584191097bfc33c4f2475ce1b3a66e523e2bef
Formbook
106f9f66c54be3c20be8f04ce63f5d6183d6eb9e79a6b243b5c820cc01ee24cb
Formbook
273e14710bfe15975737d9e213b6007a29cc795c993b6b121c745581ec1c4b96
Formbook
680e6e46c8bed6c48e63f6dab3409bb9cd05f6642084ef8b0d03898dacc500a7
Formbook
87d8ef6a4c6bf661d7957a62b9e8e9ea6627f80227f9ea88502bf601b94a960e
Formbook
99c4f75948b26af511bfa055db8d18567a3d662107e35e91102b5576f02acb84
Formbook
a4d4e093896e53df94a4ffb14632be70329334ac705925a975fa499ac7ee0a89
Formbook
a6fd278a82dad870444a8d93e3c05accdfaef779460c2f3777d9ef2441620a41
Formbook
eacd132f69b64ef7a47c959fd92f50343be23e5768f0476c665870f5de4f89ee
Formbook
f4854fb409d136b74193144c50c888b36bbbbcde71b52acb5f8177a862ebd76c
Formbook
+ 2'547 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
rat trojan spyware stealer family:formbook
Link:
https://tria.ge/reports/201020-wph2awnr5j/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.bfboke.com/cpi/
Unpacked files
SH256 hash:
479dc9070bc10d0c54e05567600a381aec19c83c100b824751345e3a09c0da4e
MD5 hash:
4be7fa2c7fe8c11e55d4082ecf3419df
SHA1 hash:
088901c39ffaab819bc1ebc61777c8054cc050e9
Link:
https://www.unpac.me/results/5b650738-7b18-4dc4-852a-bc49cd462c0b/
SH256 hash:
31ce938626ccfb399fe1696710caf46d7ae9eb598b9d7d2aad719b594658469b
MD5 hash:
0aebe46040ceb011e78506d4985fe3de
SHA1 hash:
218ac1e7b14a66c604ec3042f8486bed9cd4c2c1
Link:
https://www.unpac.me/results/5b650738-7b18-4dc4-852a-bc49cd462c0b/
SH256 hash:
d4fb0a8b9c22ac62d496e373a84ecfd4ff995ac7f42fd5a182c99d28b1ee8b23
MD5 hash:
088043172ff6b0898cb70ad48aebc204
SHA1 hash:
3c56969b1f938dda6d326e1d58e9f42f7266eaa0
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/5b650738-7b18-4dc4-852a-bc49cd462c0b/
Parent samples :
680e6e46c8bed6c48e63f6dab3409bb9cd05f6642084ef8b0d03898dacc500a7
fd5aa67ff2ae6837aaf729665b08947c23a7b5cbb1f0c9fba82ebb95ddafcf24
0bfa5712201676e9439c4624fd99b8ec2bba95ccd53fb67f0a289b0a8347fc7c
f755a2e09db3f63b7e9c035a488652b00ccb0678eca144db82e84e9e34345deb
b9fa08af8ceadc9af473f443a5b8c8d0f3e40324df53c81a5da4f97ef946e160
ade5a7d8aab5f80cf5b8b97c2bdf22922ef7fafa749b2eb7f1655b0349886196
SH256 hash:
fd5aa67ff2ae6837aaf729665b08947c23a7b5cbb1f0c9fba82ebb95ddafcf24
MD5 hash:
fbbe027607216d309ef8818255cda955
SHA1 hash:
31b17e7ed6e081db59be717e1d328dece835f2bb
Link:
https://www.unpac.me/results/5b650738-7b18-4dc4-852a-bc49cd462c0b/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Starter
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/fd5aa67ff2ae6837aaf729665b08947c23a7b5cbb1f0c9fba82ebb95ddafcf24

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time

File information

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

Malspam

Formbook

Executable exe fd5aa67ff2ae6837aaf729665b08947c23a7b5cbb1f0c9fba82ebb95ddafcf24

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/73348/

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