MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c433841d01e8b7901e45455592fd6db08dd48b4caf2682d3222078018475de60. 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 7 File information Comments
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SHA256 hash: c433841d01e8b7901e45455592fd6db08dd48b4caf2682d3222078018475de60
SHA3-384 hash: 6f5c533590020d83eb531483b3b69099287d0fd21619359d4e0a8f6f12aa48b880641647d07a5557338fffdbef27f9b0
SHA1 hash: 2aaa5191d6cd4699286cc9b2532ca844c8d0b474
MD5 hash: f3623fd8b9446e301b0d1bd390ef841e
humanhash: nuts-wolfram-fish-don
File name:HBL.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:284'031 bytes
First seen:2023-07-19 12:03:14 UTC
Last seen:2023-07-20 10:00:00 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:PYa6ii6SUdJc9/lRTT3aSpE1bsDESxLH/rO2kAFTMChtx:PYk7zs/TTTKwERsdLfrGRChtx
TLSH T13E54126932D3E7A3E8F38170DE7DA676AF9EB15210A0514F37105E69BD02392A41F313
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 b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter cocaman
Tags:exe FormBook Shipping

Intelligence

File Origin
# of uploads :
4
# of downloads :
302
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
HBL.exe
Verdict:
Suspicious activity
Analysis date:
2023-07-19 12:06:14 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/4f4a4414-04ec-4d83-9719-3485780dd993

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/424697/
Detection(s):
Sanesecurity.Malware.28885.BadCo.UNOFFICIAL
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Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control lolbin overlay packed shell32
Link:
https://www.filescan.io/uploads/64b7d134fd9e198dc1160ee5/reports/7470fc38-8b7a-4474-b966-256316f68357/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/c433841d01e8b7901e45455592fd6db08dd48b4caf2682d3222078018475de60
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/532e199a-dc90-48f5-bfb3-c5a50ecb0c96
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1275910
Signature
Antivirus detection for URL or domain
Detected unpacking (changes PE section rights)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
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
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
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
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1275910 Sample: HBL.exe Startdate: 19/07/2023 Architecture: WINDOWS Score: 100 47 Snort IDS alert for network traffic 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 Antivirus detection for URL or domain 2->51 53 4 other signatures 2->53 9 HBL.exe 1 20 2->9         started        13 yyiennwsscxxhq.exe 18 2->13         started        process3 file4 35 C:\Users\user\AppData\...\yyiennwsscxxhq.exe, PE32 9->35 dropped 37 C:\Users\user\AppData\Local\...\frsacw.dll, PE32 9->37 dropped 71 Detected unpacking (changes PE section rights) 9->71 73 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 9->73 75 Maps a DLL or memory area into another process 9->75 15 HBL.exe 9->15         started        39 C:\Users\user\AppData\Local\...\frsacw.dll, PE32 13->39 dropped 18 yyiennwsscxxhq.exe 13->18         started        signatures5 process6 signatures7 81 Maps a DLL or memory area into another process 15->81 83 Sample uses process hollowing technique 15->83 85 Queues an APC in another process (thread injection) 15->85 20 yyiennwsscxxhq.exe 18 15->20         started        process8 file9 33 C:\Users\user\AppData\Local\...\frsacw.dll, PE32 20->33 dropped 55 Multi AV Scanner detection for dropped file 20->55 57 Detected unpacking (changes PE section rights) 20->57 59 Machine Learning detection for dropped file 20->59 61 2 other signatures 20->61 24 ipconfig.exe 13 20->24         started        27 yyiennwsscxxhq.exe 20->27         started        signatures10 process11 signatures12 63 Tries to steal Mail credentials (via file / registry access) 24->63 65 Tries to harvest and steal browser information (history, passwords, etc) 24->65 67 Modifies the context of a thread in another process (thread injection) 24->67 69 Maps a DLL or memory area into another process 24->69 29 explorer.exe 2 1 24->29 injected process13 dnsIp14 41 www.fuzzpos.xyz 203.161.55.148, 49701, 49702, 49703 VNPT-AS-VNVNPTCorpVN Malaysia 29->41 43 www.baltools.com 216.40.34.41, 49734, 49735, 49736 TUCOWSCA Canada 29->43 45 20 other IPs or domains 29->45 77 System process connects to network (likely due to code injection or exploit) 29->77 79 Performs DNS queries to domains with low reputation 29->79 signatures15
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c433841d01e8b7901e45455592fd6db08dd48b4caf2682d3222078018475de60/
Threat name:
Win32.Trojan.Nsisx
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Status:
Malicious
First seen:
2023-07-19 09:09:40 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
23 of 38 (60.53%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yqzyihib5c3zahsfivkzf7lnwcg5jc2mv4tifuzceb4adbdv3zqa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
n/a
Score:
  7/10
Tags:
persistence
Link:
https://tria.ge/reports/230719-n8k2bsec43/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
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
Unpacked files
SH256 hash:
c3e2459954ece4f7d7b83677d1df9862e720d595e8a9aba7b214b833725a172d
MD5 hash:
51e4407fcf08cbc3f0d03b1628a80770
SHA1 hash:
55920b7b63e775c58e8cc611ee849702610c35f6
Detections:
XLoader
Create hunting rule
win_formbook_w0
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win_formbook_auto
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win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/43b579f4-8f11-4082-bd1b-d621a9f502cd/
Parent samples :
4f46b17d1db8bdb30b33dfa8ed5335149bb4f920780e349b6b02155e337c8b57
c433841d01e8b7901e45455592fd6db08dd48b4caf2682d3222078018475de60
5adf7d2d4f1364dade98a5c7b94421458d87391204bf0123563766180e7524a0
SH256 hash:
ed64a7477371b98b059c283dde9eb172902d718f935e404333eabf67e855d11e
MD5 hash:
18bfc9443cbd1df7df3767e14c0ea0c7
SHA1 hash:
eaf5779203c7b8eabf571e6972e6449e2b4d9730
Link:
https://www.unpac.me/results/43b579f4-8f11-4082-bd1b-d621a9f502cd/
SH256 hash:
e5fd25be80496ebe8a6828535b40cc7b8354d825f9a012d57c72176475cf3d61
MD5 hash:
ad0de2a1ceb0c255fc83f4ee2a2535ae
SHA1 hash:
f843fc869455bcc66699bcfdc21950badf6e27b9
Link:
https://www.unpac.me/results/43b579f4-8f11-4082-bd1b-d621a9f502cd/
SH256 hash:
c433841d01e8b7901e45455592fd6db08dd48b4caf2682d3222078018475de60
MD5 hash:
f3623fd8b9446e301b0d1bd390ef841e
SHA1 hash:
2aaa5191d6cd4699286cc9b2532ca844c8d0b474
Link:
https://www.unpac.me/results/43b579f4-8f11-4082-bd1b-d621a9f502cd/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c433841d01e8/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/c433841d01e8b7901e45455592fd6db08dd48b4caf2682d3222078018475de60

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: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
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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.

Malspam

Formbook

rar 1e355982ed461419460ecc7c0963264aef160c61cd4bc5ee42a15fa92fe1f4db

Formbook

Executable exe c433841d01e8b7901e45455592fd6db08dd48b4caf2682d3222078018475de60

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 1e355982ed461419460ecc7c0963264aef160c61cd4bc5ee42a15fa92fe1f4db
Cape
Cape
https://www.capesandbox.com/analysis/424697/
  
Dropped by
MD5 2f43d372b3a9011ece6307fb5d9d4c35

Comments