MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f8dd72e26f36b759975caec134a2ebe40acb84599226f4b880b631d572afcf43. 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: 14


Intelligence 14 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f8dd72e26f36b759975caec134a2ebe40acb84599226f4b880b631d572afcf43
SHA3-384 hash: f53a5c5b6702384f4d1a155dfcff1771db65202cc8d0a9dbc80c03b9b3037160a5c4964d48ff7389e1f87c5e1053face
SHA1 hash: 20293d82570cb13cac51c8ff460b9b17afbe138e
MD5 hash: 2e6d8d61df1d4361d10e4ac7e14827a2
humanhash: alanine-eleven-two-march
File name:2e6d8d61df1d4361d10e4ac7e14827a2.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'345'761 bytes
First seen:2022-10-27 08:31:01 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash fcf1390e9ce472c7270447fc5c61a0c1 (863 x DCRat, 118 x NanoCore, 94 x njrat)
ssdeep 24576:7AOcZX4c+F9XmLQ1y2ZFpNzvoj5HHeg/cbGOSMIzj:dd2LAtFjzv45HdYGOSM8
TLSH T16E552202B7C18871D4725E36AA36B7106D7C7E201E74D91FA3E499ACDB721817229BF3
TrID 91.0% (.EXE) WinRAR Self Extracting archive (4.x-5.x) (265042/9/39)
3.6% (.EXE) Win64 Executable (generic) (10523/12/4)
1.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
1.5% (.EXE) Win32 Executable (generic) (4505/5/1)
0.6% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 9ee2e8e8d8c8e28e (5 x Formbook, 1 x RemcosRAT)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
243
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
CR027085246.zip
Verdict:
Malicious activity
Analysis date:
2022-10-27 06:58:47 UTC
Tags:
trojan opendir exploit cve-2017-11882 loader formbook stealer
Link:
https://app.any.run/tasks/6983de8c-d36a-47cb-ad45-03caebd57f56

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/324780/
Detection(s):
Win.Dropper.Nanocore-9974287-0
Create hunting rule

Win.Dropper.Nanocore-9975167-0
Create hunting rule

Win.Dropper.Nanocore-9975168-0
Create hunting rule

SecuriteInfo.com.Gen.Variant.Johnnie.221809.751.14920.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Searching for the window
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file in the %temp% subdirectories
Enabling the 'hidden' option for files in the %temp% directory
Creating a process from a recently created file
Creating a file
Adding an access-denied ACE
Launching a process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  6/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/45902/overview
Behaviour
MalwareBazaar
MeasuringTime
EvasionQueryPerformanceCounter
Result
Verdict:
MALICIOUS
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/d4369b39-3a44-4aec-98c3-78ff0f7971c8
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1099108
Signature
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Injects a PE file into a foreign processes
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 domain / URL
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
Writes to foreign memory regions
Yara detected AntiVM autoit script
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 731764 Sample: c2byIRWDn8.exe Startdate: 27/10/2022 Architecture: WINDOWS Score: 100 61 Multi AV Scanner detection for domain / URL 2->61 63 Malicious sample detected (through community Yara rule) 2->63 65 Antivirus detection for URL or domain 2->65 67 4 other signatures 2->67 11 c2byIRWDn8.exe 3 79 2->11         started        process3 file4 51 C:\Users\user\AppData\Local\...\cftug.exe, PE32 11->51 dropped 14 wscript.exe 1 11->14         started        process5 process6 16 cftug.exe 1 3 14->16         started        file7 49 C:\Users\user\AppData\Local\...\RegSvcs.exe, PE32 16->49 dropped 53 Multi AV Scanner detection for dropped file 16->53 55 Contains functionality to inject code into remote processes 16->55 57 Writes to foreign memory regions 16->57 59 3 other signatures 16->59 20 RegSvcs.exe 16->20         started        23 RegSvcs.exe 16->23         started        signatures8 process9 signatures10 75 Modifies the context of a thread in another process (thread injection) 20->75 77 Maps a DLL or memory area into another process 20->77 25 explorer.exe 20->25 injected process11 process12 27 cftug.exe 1 25->27         started        30 cftug.exe 25->30         started        32 cftug.exe 25->32         started        signatures13 79 Writes to foreign memory regions 27->79 81 Allocates memory in foreign processes 27->81 83 Sample uses process hollowing technique 27->83 34 RegSvcs.exe 27->34         started        37 RegSvcs.exe 27->37         started        85 Injects a PE file into a foreign processes 30->85 39 wlanext.exe 30->39         started        41 RegSvcs.exe 30->41         started        43 RegSvcs.exe 30->43         started        45 RegSvcs.exe 32->45         started        47 RegSvcs.exe 32->47         started        process14 signatures15 69 Maps a DLL or memory area into another process 34->69 71 Sample uses process hollowing technique 34->71 73 Queues an APC in another process (thread injection) 34->73
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f8dd72e26f36b759975caec134a2ebe40acb84599226f4b880b631d572afcf43/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2022-10-27 00:57:55 UTC
File Type:
PE (Exe)
Extracted files:
205
AV detection:
26 of 41 (63.41%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=7doxfytpg23vtf24v3atjixl4qfmxbczsitpjoeawyy5k4vpz5bq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ubpr persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/221027-keqg6sbee6/
Behaviour
Modifies Internet Explorer settings
Modifies registry class
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
Adds Run key to start application
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Formbook
Unpacked files
SH256 hash:
8acb565b34040b60b5bc01cbf3e25f4a2efd1d3b6033ac8ae5f57a23537aeef0
MD5 hash:
e1304571e811731588bc246eebbf41f6
SHA1 hash:
ecd998eaac1a968a6c09c4b851fcef1ab6b58856
Detections:
XLoader
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/ea209656-7b9d-4679-b4c3-e46ffdf9bfb9/
Parent samples :
53304618643cdc79b032becca67d8f5b29e7202ec25e7bb724ce712a03ec6592
fed743ba97ee8b48a3925816de1b2665d2a73bbf3bc75083fb9ade2855afc0ce
817de551d33841a6a6d81e99b4ed25682e796857b694cec79daa45afdb5cede8
af29f1801cb7159de48605410405ecf431646f72d43f739b80822bdab747da9d
335ae169f2389d9434a5b74ac0876d506dc1fe2ae4f8174be8a4ff06f409952b
a52d0bc31a250c5dd5c84c75fca9b965955297d20f582d79849c17fb59c4c04f
f8dd72e26f36b759975caec134a2ebe40acb84599226f4b880b631d572afcf43
660eb5f2811753c24ecbd5c0e08c68d83d7eca1b2827ed90e2a5189ed61f3a5b
SH256 hash:
a9b9dd5b3026334533297a592465c4b85d04fc64bed66a7ac8aaf7d91341e40a
MD5 hash:
e56e615404ddfc441c20857a11d7583c
SHA1 hash:
0e7a639fc705523faf113cec3ae5fe87af039859
Link:
https://www.unpac.me/results/ea209656-7b9d-4679-b4c3-e46ffdf9bfb9/
SH256 hash:
5d973fcc9981ca63e9d35e19739232859b95227d86eede5b5c69bdcb920cc7d2
MD5 hash:
98f0fba027d20320e55c6d1cce4a2b03
SHA1 hash:
71b48b73a05b2c35dbd7b3bbf7acda0d04850034
Link:
https://www.unpac.me/results/ea209656-7b9d-4679-b4c3-e46ffdf9bfb9/
SH256 hash:
f8dd72e26f36b759975caec134a2ebe40acb84599226f4b880b631d572afcf43
MD5 hash:
2e6d8d61df1d4361d10e4ac7e14827a2
SHA1 hash:
20293d82570cb13cac51c8ff460b9b17afbe138e
Link:
https://www.unpac.me/results/ea209656-7b9d-4679-b4c3-e46ffdf9bfb9/
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/f8dd72e26f36b759975caec134a2ebe40acb84599226f4b880b631d572afcf43

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:malware_Formbook_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB
Rule name:sfx_pdb
Create hunting rule
Author:@razvialex
Description:Detect interesting files containing sfx with pdb paths.
Rule name:sfx_pdb_winrar_restrict
Create hunting rule
Author:@razvialex
Description:Detect interesting files containing sfx with pdb paths.
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information

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

Web download

Formbook

Executable exe f8dd72e26f36b759975caec134a2ebe40acb84599226f4b880b631d572afcf43

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2384196/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/324780/

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