MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 49b8f1649ce1475bf80182afd86954cc2013ffcce5605fc5b466b8f6e405411f. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 49b8f1649ce1475bf80182afd86954cc2013ffcce5605fc5b466b8f6e405411f
SHA3-384 hash: 250bd3c1e1b000133dd29865e18f760869b662c759ba50bbc24f5c177ad1a2a7f10c815f6342842f7df4f110c457aaa3
SHA1 hash: f8cb4b9e155866d0963f2bc4e746e7f691fdbb38
MD5 hash: 5a431877f9c20f661f5ec7f011eaad09
humanhash: angel-yellow-carbon-cat
File name:5a431877f9c20f661f5ec7f011eaad09
Download: download sample
Signature Formbook
Create hunting rule
File size:792'576 bytes
First seen:2022-11-10 13:49:46 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:L2iN3M/CcJ7hlwzovhFejp1ZRwd1HycT8CScl+VJDHtuGZ39oo3F5/W+:L1CzqMvhFejXZRwvV8+lQfu+3io3F93
TLSH T104F48C94605A8999F76FA3B061ECFFB033B27CF3A5CA465A82687144C3F9F910D6418D
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
185
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
5a431877f9c20f661f5ec7f011eaad09
Verdict:
Malicious activity
Analysis date:
2022-11-10 13:50:55 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/10b0e11a-e399-437d-8246-c187b2e89bf6

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/331956/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.PUA.EmbeddedEXE-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/636d018c6e54ea7258283a41/reports/33db2e21-8cd9-4625-9dbd-543564f4100e/overview
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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2f23add7-4292-490d-8f8e-04f49801487a
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1110477
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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)
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
Snort IDS alert for network traffic
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 harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses ipconfig to lookup or modify the Windows network settings
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: 743166 Sample: wwvFJd53bO.exe Startdate: 10/11/2022 Architecture: WINDOWS Score: 100 49 www17.skok.cz 2->49 51 www.giftboxo.com 2->51 55 Snort IDS alert for network traffic 2->55 57 Malicious sample detected (through community Yara rule) 2->57 59 Antivirus detection for URL or domain 2->59 61 8 other signatures 2->61 9 wwvFJd53bO.exe 7 2->9         started        13 hkhqeQoOhu.exe 5 2->13         started        signatures3 process4 file5 41 C:\Users\user\AppData\...\hkhqeQoOhu.exe, PE32 9->41 dropped 43 C:\Users\...\hkhqeQoOhu.exe:Zone.Identifier, ASCII 9->43 dropped 45 C:\Users\user\AppData\Local\...\tmp9C53.tmp, XML 9->45 dropped 47 C:\Users\user\AppData\...\wwvFJd53bO.exe.log, ASCII 9->47 dropped 71 Uses schtasks.exe or at.exe to add and modify task schedules 9->71 73 Adds a directory exclusion to Windows Defender 9->73 15 wwvFJd53bO.exe 9->15         started        18 powershell.exe 20 9->18         started        20 schtasks.exe 1 9->20         started        75 Multi AV Scanner detection for dropped file 13->75 77 Machine Learning detection for dropped file 13->77 79 Injects a PE file into a foreign processes 13->79 22 hkhqeQoOhu.exe 13->22         started        24 schtasks.exe 1 13->24         started        signatures6 process7 signatures8 85 Modifies the context of a thread in another process (thread injection) 15->85 87 Maps a DLL or memory area into another process 15->87 89 Sample uses process hollowing technique 15->89 91 Queues an APC in another process (thread injection) 15->91 26 explorer.exe 15->26 injected 30 conhost.exe 18->30         started        32 conhost.exe 20->32         started        34 conhost.exe 24->34         started        process9 dnsIp10 53 www.bumping.online 162.0.213.190, 49718, 80 ACPCA Canada 26->53 81 System process connects to network (likely due to code injection or exploit) 26->81 83 Uses ipconfig to lookup or modify the Windows network settings 26->83 36 cmstp.exe 13 26->36         started        39 ipconfig.exe 26->39         started        signatures11 process12 signatures13 63 Tries to steal Mail credentials (via file / registry access) 36->63 65 Tries to harvest and steal browser information (history, passwords, etc) 36->65 67 Modifies the context of a thread in another process (thread injection) 36->67 69 Maps a DLL or memory area into another process 36->69
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/49b8f1649ce1475bf80182afd86954cc2013ffcce5605fc5b466b8f6e405411f/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-11-10 13:50:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
16 of 26 (61.54%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jg4pcze44fdvx6abqkx5q2kuzqqbh76m4vqf7rnum24pnzafiepq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:e8ob rat spyware stealer trojan
Link:
https://tria.ge/reports/221110-q489gaacf6/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/64b1b558-fee0-4438-bbbd-477be2e83da9
Unpacked files
SH256 hash:
50d970b92b19c5dde68483487955597baf0889c3206809591829d9872e3ae887
MD5 hash:
71a121f105831cfb6c95ece654b643a1
SHA1 hash:
520ef980940f7c058b5f7acc1a691dd685061a04
Detections:
XLoader
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/091cc96e-96d0-43fd-a1a1-5ed94acc0a24/
Parent samples :
c9d62783a6a538811d772787524ec558dc071bd5a13d6f81848609adeb93da58
49b8f1649ce1475bf80182afd86954cc2013ffcce5605fc5b466b8f6e405411f
SH256 hash:
9d1b7da6a5c12672c2e76e694c47c5682a1e7f66c55acc3a0793fbdde6fdcc16
MD5 hash:
490a2eb176d609b32ac2f0cb5a6b2c10
SHA1 hash:
d3ebba4e48224ef796c17e1bfadc36c3abc86a44
Link:
https://www.unpac.me/results/091cc96e-96d0-43fd-a1a1-5ed94acc0a24/
SH256 hash:
e648c73fc06bd5f96a3c1609a559607810514394f35c81e45db402004451770d
MD5 hash:
62b4ae833fcf9ed39c1e4bef0565cc79
SHA1 hash:
12f7b8306bb223e1943bb629c00e62f5ba5fe5c7
Link:
https://www.unpac.me/results/091cc96e-96d0-43fd-a1a1-5ed94acc0a24/
SH256 hash:
16e6a3152b934e2509bf159fd5d4d7ac6ce968f2d997183c0531ebffc932ec3c
MD5 hash:
9fcc8792dce69e2d76f2b1d65f815eac
SHA1 hash:
cb1b3292b5cf0714e6dbc024b6fd72f03c4535d9
Link:
https://www.unpac.me/results/091cc96e-96d0-43fd-a1a1-5ed94acc0a24/
SH256 hash:
744928a56b4d36f17e73eea0534c5e99103d1553d5b0a864a6fd9d4f9899b47f
MD5 hash:
91fed5db1afcdf48e0cd6d4058a013ba
SHA1 hash:
3717b3346e25d3f66f00626ad1a771d8655f485f
Link:
https://www.unpac.me/results/091cc96e-96d0-43fd-a1a1-5ed94acc0a24/
SH256 hash:
ab19f28c700d64814b0c55df868c30dfb94e0a1f9fb6f7bca05bac6eb78a4e52
MD5 hash:
1f2a6c02dcf9aa00a28a5039fb5b8ce0
SHA1 hash:
1ef480867d39b98368af7586a8e6ba38c0c3893a
Link:
https://www.unpac.me/results/091cc96e-96d0-43fd-a1a1-5ed94acc0a24/
SH256 hash:
49b8f1649ce1475bf80182afd86954cc2013ffcce5605fc5b466b8f6e405411f
MD5 hash:
5a431877f9c20f661f5ec7f011eaad09
SHA1 hash:
f8cb4b9e155866d0963f2bc4e746e7f691fdbb38
Link:
https://www.unpac.me/results/091cc96e-96d0-43fd-a1a1-5ed94acc0a24/
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/49b8f1649ce1475bf80182afd86954cc2013ffcce5605fc5b466b8f6e405411f

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: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 49b8f1649ce1475bf80182afd86954cc2013ffcce5605fc5b466b8f6e405411f

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/331956/
  
URLhaus
https://urlhaus.abuse.ch/url/2406889/

Comments


Avatar
zbet commented on 2022-11-10 13:50:02 UTC

url : hxxp://103.125.189.50/msncloud/vbc.exe