MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b25ef1151578640a5bb9e01fada60a8792fc4d3e92f3ddabf19ba4cd6d630f57. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b25ef1151578640a5bb9e01fada60a8792fc4d3e92f3ddabf19ba4cd6d630f57
SHA3-384 hash: bfd187ad30bc993cf813e1e4c5fa25ee045fa1fac2b8a424b6b1b633c5e8e8a86d086ad7d6d26bf5dfe303c34569fb7f
SHA1 hash: 750e1254a82c6e21ab5cfba176363f0112089f65
MD5 hash: 001122f11ae95a3c00eb3e76541bc264
humanhash: asparagus-nine-artist-golf
File name:001122f11ae95a3c00eb3e76541bc264.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'205'248 bytes
First seen:2021-09-27 12:31:38 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'647 x AgentTesla, 19'449 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 24576:s9YKH24J/IJ1/BuQ1Pn8Q96oOxBEF+hZF+u:sue2G8tBd8Q96oO00Z
Threatray 9'655 similar samples on MalwareBazaar
TLSH T168451898365072DFC85BCD76DAA66C64EA20B8AB4F0FD203A41325DD991DA97CF101F3
File icon (PE):PE icon
dhash icon 00868ecccce8cc10 (13 x AgentTesla, 9 x Formbook, 2 x NanoCore)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
139
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
201910152133발주분신규_10115_지아이테크_0.xlsx
Verdict:
Malicious activity
Analysis date:
2021-09-27 08:17:56 UTC
Tags:
encrypted exploit CVE-2017-11882 loader
Link:
https://app.any.run/tasks/90e72498-a627-400d-9856-a2f47a1f8772

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/192078/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/62428cef-3a36-40fe-baee-db121cc1da0a
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/858964
Signature
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
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
Self deletion via cmd delete
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 AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 491397 Sample: 456yqMyHvT.exe Startdate: 27/09/2021 Architecture: WINDOWS Score: 100 39 www.desireezzplus.com 2->39 41 desireezzplus.com 2->41 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 Multi AV Scanner detection for dropped file 2->49 51 6 other signatures 2->51 11 456yqMyHvT.exe 7 2->11         started        signatures3 process4 file5 33 C:\Users\user\AppData\Roaming\dWAzsHjHs.exe, PE32 11->33 dropped 35 C:\Users\user\AppData\Local\...\tmp9071.tmp, XML 11->35 dropped 37 C:\Users\user\AppData\...\456yqMyHvT.exe.log, ASCII 11->37 dropped 63 Detected unpacking (changes PE section rights) 11->63 65 Detected unpacking (overwrites its own PE header) 11->65 67 Uses schtasks.exe or at.exe to add and modify task schedules 11->67 69 Tries to detect virtualization through RDTSC time measurements 11->69 15 456yqMyHvT.exe 11->15         started        18 schtasks.exe 1 11->18         started        signatures6 process7 signatures8 71 Modifies the context of a thread in another process (thread injection) 15->71 73 Maps a DLL or memory area into another process 15->73 75 Sample uses process hollowing technique 15->75 77 Queues an APC in another process (thread injection) 15->77 20 explorer.exe 15->20 injected 24 conhost.exe 18->24         started        process9 dnsIp10 43 www.zaborski.pro 91.237.52.145, 49852, 80 BIZNESHOST-ASPL Poland 20->43 53 System process connects to network (likely due to code injection or exploit) 20->53 26 WWAHost.exe 20->26         started        signatures11 process12 signatures13 55 Self deletion via cmd delete 26->55 57 Modifies the context of a thread in another process (thread injection) 26->57 59 Maps a DLL or memory area into another process 26->59 61 Tries to detect virtualization through RDTSC time measurements 26->61 29 cmd.exe 1 26->29         started        process14 process15 31 conhost.exe 29->31         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b25ef1151578640a5bb9e01fada60a8792fc4d3e92f3ddabf19ba4cd6d630f57/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-09-27 11:32:27 UTC
AV detection:
18 of 28 (64.29%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
043b45f9d94820186d7324c5f6e0fd7661de15ad29104fd43294e2f3839efa06
Formbook
4c5887639c1dfcc0349690d98e9c8034029a6fa2f2e6bdbba96371bf23ce3301
Formbook
6c0e85b84f2b1dfdb580a168386ad91efe7f734066ff3a12a0d359fcb4711dca
Formbook
7024147e75938acd54b804df172c63b57c794e1980632c5f8190ae1e9d0da82a
Formbook
7162b4c9de1772aa721d26d185fd1b7e32a9de5c6ebfd86cab3ef0ed7561a837
Formbook
972f5e016ffc306524d7083a5a5058ba8b5fc60f3db9f3c0915db59c0523a487
Formbook
99b495e7c6df7f7bf887cd2d7f143e4103dfaf57990a0712bac7d33a2c6d6f0c
Formbook
b11a7103f96fb02a8df7ad0e821f0083f48f56cc38df47d8573f39c0d4a19235
Formbook
d2d6a8c31acdd92eb9a005e2fac8838a382ab0425fc01bc88616bda185ab7b4c
Formbook
d39ec2fb7fa07bb6886173571262d2324d96b6e879ccc4f2cea46ece183e576a
Formbook
+ 9'645 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:gst0 rat spyware stealer trojan
Link:
https://tria.ge/reports/210927-pqmymsghgl/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.themmbcollection.com/gst0/
Unpacked files
SH256 hash:
a02aa58b786ab50949171f378ab1388ffdcaa69362b65e84425e45c936d30090
MD5 hash:
d5316d4641527276319b647eb391f0d5
SHA1 hash:
0f29b3ca7d63df0024ab143f3810eda54b029480
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/6176b294-25f5-47b0-9c93-3bbbab6814ed/
SH256 hash:
b65ba353620377725bbbe0a2bf1a9ac3e938e78433f568aac41f29a9e014eccb
MD5 hash:
6637720381bee2dfe242f10677bdd84c
SHA1 hash:
de24a8a432995b69ea1a4cd8034c60598bb5a4d6
Link:
https://www.unpac.me/results/6176b294-25f5-47b0-9c93-3bbbab6814ed/
SH256 hash:
49564ff28df10017bc9448e4400ebb6d771a4d4a4350a8bb646444972ba209ec
MD5 hash:
6c2e65f29700ba363d560251b12b0391
SHA1 hash:
a6f098b1cbc44508b39c5fc7ae55b1910c5a67f9
Link:
https://www.unpac.me/results/6176b294-25f5-47b0-9c93-3bbbab6814ed/
SH256 hash:
efd2f7657839b252c2fb8489c1ccf610b8e57b471efe049de86a74bc1506775d
MD5 hash:
c3f3e4a9e9ab54bf847a9fc02e7a2160
SHA1 hash:
0853bec33e36ede763927cda0f03129ca763bc07
Link:
https://www.unpac.me/results/6176b294-25f5-47b0-9c93-3bbbab6814ed/
SH256 hash:
b25ef1151578640a5bb9e01fada60a8792fc4d3e92f3ddabf19ba4cd6d630f57
MD5 hash:
001122f11ae95a3c00eb3e76541bc264
SHA1 hash:
750e1254a82c6e21ab5cfba176363f0112089f65
Link:
https://www.unpac.me/results/6176b294-25f5-47b0-9c93-3bbbab6814ed/
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/b25ef1151578640a5bb9e01fada60a8792fc4d3e92f3ddabf19ba4cd6d630f57

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: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.

Web download

Formbook

Executable exe b25ef1151578640a5bb9e01fada60a8792fc4d3e92f3ddabf19ba4cd6d630f57

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1645287/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/192078/

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