MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4b2c21ea5f69768b3fa702304683c99e18dea0823d0c8585cec84be4210f08da. 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: 18


Intelligence 18 IOCs YARA 8 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4b2c21ea5f69768b3fa702304683c99e18dea0823d0c8585cec84be4210f08da
SHA3-384 hash: 7f8c38815fe462c3a4c0218b4ca4a52db3e14f73cd0112732257cf8e3a64ecad6bbd692dfb88ebd2b972645a36c47e56
SHA1 hash: 02bbd47bd71f79822fb4e97a2b75e16d458bcb38
MD5 hash: a829ecd13f2411e8d7560cb8d2cde93d
humanhash: island-east-stream-golf
File name:a829ecd13f2411e8d7560cb8d2cde93d
Download: download sample
Signature Formbook
Create hunting rule
File size:292'255 bytes
First seen:2023-02-22 11:04:09 UTC
Last seen:2023-02-22 12:55:00 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 431 x GuLoader)
ssdeep 6144:AYa6Vbm3u1NfFiBNisuxch0OqPxk0FqZhBvvs5QkN+GLnJTBiQ:AYPbm4NNiBN8ih0OulqZhBHs5jYwJTn
Threatray 1'822 similar samples on MalwareBazaar
TLSH T1BA5412043660D537D4A223700E7AD6BF99A9AE215C2A6B4BB7D03F9F3933651CA4F740
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon e0aaaa2b0303aad0 (34 x Formbook, 21 x AveMariaRAT, 18 x AgentTesla)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
198
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
a829ecd13f2411e8d7560cb8d2cde93d
Verdict:
Malicious activity
Analysis date:
2023-02-22 11:20:51 UTC
Tags:
formbook xloader trojan stealer
Link:
https://app.any.run/tasks/d69a741e-e011-4e10-b185-62717fd8c380

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/368979/
Detection(s):
SecuriteInfo.com.Trojan.Garf.Gen.6.19171.24015.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a process from a recently created file
Launching a process
Searching for synchronization primitives
Сreating synchronization primitives
Launching cmd.exe command interpreter
Setting browser functions hooks
Searching for the window
Creating a file in the %temp% directory
Creating a window
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/72202/overview
Behaviour
MalwareBazaar
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
83%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63f5f6e042bf85850e3f38b7/reports/2ca4d9b6-47cf-47b4-acdc-a4e440a601fa/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/4b2c21ea5f69768b3fa702304683c99e18dea0823d0c8585cec84be4210f08da
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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4f44ff35-4711-4cac-a755-1eb0d7296bbb
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1180533
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
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)
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 813364 Sample: pP8FR9JCSP.exe Startdate: 22/02/2023 Architecture: WINDOWS Score: 100 37 Snort IDS alert for network traffic 2->37 39 Malicious sample detected (through community Yara rule) 2->39 41 Antivirus detection for URL or domain 2->41 43 4 other signatures 2->43 9 pP8FR9JCSP.exe 19 2->9         started        process3 file4 31 C:\Users\user\AppData\Local\...\cfnfoujbh.exe, PE32 9->31 dropped 12 cfnfoujbh.exe 1 9->12         started        process5 signatures6 47 Multi AV Scanner detection for dropped file 12->47 49 Detected unpacking (changes PE section rights) 12->49 51 Maps a DLL or memory area into another process 12->51 53 Tries to detect virtualization through RDTSC time measurements 12->53 15 cfnfoujbh.exe 12->15         started        18 cmd.exe 1 12->18         started        20 conhost.exe 12->20         started        process7 signatures8 61 Modifies the context of a thread in another process (thread injection) 15->61 63 Maps a DLL or memory area into another process 15->63 65 Queues an APC in another process (thread injection) 15->65 22 explorer.exe 2 6 15->22 injected 26 conhost.exe 18->26         started        process9 dnsIp10 33 www.abovetheaverageent.com 199.34.228.74, 49721, 80 WEEBLYUS United States 22->33 35 www.activseal.com 38.162.75.141, 49723, 80 COGENT-174US United States 22->35 45 System process connects to network (likely due to code injection or exploit) 22->45 28 colorcpl.exe 22->28         started        signatures11 process12 signatures13 55 Modifies the context of a thread in another process (thread injection) 28->55 57 Maps a DLL or memory area into another process 28->57 59 Tries to detect virtualization through RDTSC time measurements 28->59
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4b2c21ea5f69768b3fa702304683c99e18dea0823d0c8585cec84be4210f08da/
Threat name:
Win32.Trojan.Garf
Create hunting rule
Status:
Malicious
First seen:
2023-02-22 11:05:07 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jmwcd2s7nf3iwp5haiyena6jtymn5iechugilboozbf6iiipbdna._file
Verdict:
malicious
Similar samples:
43440434172d5730884fa5f0ae4f7ae73c4815e74618d18bc405d18dd325fed4
Formbook
628aa31e938f6407d365b1c833953f4d5b696c08c55b2b9905e2ab6dd724039b
Formbook
9afc074ebc658630115d98a5ad12f30a53509d43183cf855489be266890225e5
Formbook
9d6e3e7c289c554340dbbe1d6d6962c0f516325ec801e841814c676a936e9fc9
Formbook
ad8fd0b0690db382dc13e6e8a7365581877af214c39ca5dd673b8cea760e8891
Formbook
c40dc41488efa6a5e4cb29e69880ad288f6d5a0af69522818239f5410ab807d7
Formbook
+ 1'812 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:sk29 rat spyware stealer trojan
Link:
https://tria.ge/reports/230222-m6vmbacg7y/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Executes dropped EXE
Loads dropped DLL
Formbook payload
Formbook
Unpacked files
SH256 hash:
e1abb58acc652d0c9651fd2b6c10158b599e407b644ac9b4c84125a7d89d8773
MD5 hash:
cb43913652a63edf1c1ab8e56fd902c9
SHA1 hash:
7ffc335da58a462a885ae33bbed0a0268ac0ea1e
Link:
https://www.unpac.me/results/29654662-d2c9-4982-8cda-f8113cd23bf6/
SH256 hash:
4b2c21ea5f69768b3fa702304683c99e18dea0823d0c8585cec84be4210f08da
MD5 hash:
a829ecd13f2411e8d7560cb8d2cde93d
SHA1 hash:
02bbd47bd71f79822fb4e97a2b75e16d458bcb38
Link:
https://www.unpac.me/results/29654662-d2c9-4982-8cda-f8113cd23bf6/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4b2c21ea5f69/report/overview.html
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/4b2c21ea5f69768b3fa702304683c99e18dea0823d0c8585cec84be4210f08da

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
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.
Rule name:win_formbook_w0
Create hunting rule
Author:@malgamy12

File information

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

Web download

Formbook

Executable exe 4b2c21ea5f69768b3fa702304683c99e18dea0823d0c8585cec84be4210f08da

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/368979/
  
URLhaus
https://urlhaus.abuse.ch/url/2548683/

Comments


Avatar
zbet commented on 2023-02-22 11:04:13 UTC

url : hxxp://kerasiastudios.gr/shedygint2.1.exe