MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b15e539ba1801af269c976fa743708a0fc474fcdf6ba3a7433a08dfbf9eb1425. 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: 16


Intelligence 16 IOCs YARA 6 File information Comments 1
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SHA256 hash: b15e539ba1801af269c976fa743708a0fc474fcdf6ba3a7433a08dfbf9eb1425
SHA3-384 hash: 82c0f0199b0da333d36268626da290aec10f606b50aa22821809f0c2702afa22388a3507db96c60cfe2ab71dc30adde2
SHA1 hash: 3eafc5148e89788b6c0340e02ed53bce07b1471d
MD5 hash: 8c1cb5a9050ed3721793df739077619f
humanhash: video-sink-eight-single
File name:8c1cb5a9050ed3721793df739077619f
Download: download sample
Signature Formbook
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File size:458'179 bytes
First seen:2023-01-21 03:22:10 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 429 x GuLoader)
ssdeep 6144:KYa6FiguhKEIkV2GErIH1SjO8gevyd0lvqQaHnvfMBQIWdfi:KYviguhbIk6IHQKEyuvAvfMuIv
TLSH T12BA48BD06F71A0A2D4CE5632C6259D7B31413C522A78440E29FF375A2BFEDC3846AADD
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 b464e4f0e8f0f0cc (1 x NanoCore, 1 x AgentTesla, 1 x Formbook)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
189
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
8c1cb5a9050ed3721793df739077619f
Verdict:
Malicious activity
Analysis date:
2023-01-21 03:24:29 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/180cff06-678f-4de8-bec8-4bfc8fe707ba

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/355241/
Detection(s):
SecuriteInfo.com.Variant.Babar.142505.19885.22964.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Reading critical registry keys
Searching for synchronization primitives
Launching a process
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Launching the default Windows debugger (dwwin.exe)
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/61950/overview
Behaviour
MalwareBazaar
Verdict:
No Threat
Threat level:
  2/10
Confidence:
83%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63cb5a9789bd67c10fd8f6dc/reports/884b1a99-909c-45e2-b10b-d02017be92f4/overview
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/39670a10-2e1e-4a5e-9c97-f2f021d72758
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1156054
Signature
Antivirus detection for URL or domain
Contains functionality to detect sleep reduction / modifications
Detected unpacking (changes PE section rights)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
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
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)
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 788786 Sample: uEnbBqCbRX.exe Startdate: 21/01/2023 Architecture: WINDOWS Score: 100 30 www.24worldmarket.com 2->30 32 24worldmarket.com 2->32 48 Snort IDS alert for network traffic 2->48 50 Malicious sample detected (through community Yara rule) 2->50 52 Antivirus detection for URL or domain 2->52 54 2 other signatures 2->54 10 uEnbBqCbRX.exe 19 2->10         started        signatures3 process4 file5 28 C:\Users\user\AppData\Local\Temp\ttkxa.exe, PE32 10->28 dropped 13 ttkxa.exe 1 10->13         started        process6 signatures7 66 Multi AV Scanner detection for dropped file 13->66 68 Detected unpacking (changes PE section rights) 13->68 70 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 13->70 72 2 other signatures 13->72 16 ttkxa.exe 13->16         started        19 conhost.exe 13->19         started        process8 signatures9 40 Modifies the context of a thread in another process (thread injection) 16->40 42 Maps a DLL or memory area into another process 16->42 44 Sample uses process hollowing technique 16->44 46 Queues an APC in another process (thread injection) 16->46 21 explorer.exe 2 6 16->21 injected process10 dnsIp11 34 www.cobolmaui.com 216.40.34.41, 49735, 49736, 80 TUCOWSCA Canada 21->34 36 detail.tips 37.97.254.27, 49728, 49729, 80 TRANSIP-ASAmsterdamtheNetherlandsNL Netherlands 21->36 38 12 other IPs or domains 21->38 56 System process connects to network (likely due to code injection or exploit) 21->56 25 raserver.exe 13 21->25         started        signatures12 process13 signatures14 58 Tries to steal Mail credentials (via file / registry access) 25->58 60 Tries to harvest and steal browser information (history, passwords, etc) 25->60 62 Modifies the context of a thread in another process (thread injection) 25->62 64 Maps a DLL or memory area into another process 25->64
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b15e539ba1801af269c976fa743708a0fc474fcdf6ba3a7433a08dfbf9eb1425/
Threat name:
Win32.Trojan.Nsisx
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Status:
Malicious
First seen:
2023-01-20 20:41:53 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wfpfhg5bqanpe2ojo35hinyiud6eot6n625du5btucg7x6plcqsq._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://tria.ge/reports/230121-dxgjnacc9v/
Behaviour
Modifies Internet Explorer settings
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
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Unpacked files
SH256 hash:
b0ea2c37fe73f9587f9a126c6b00dbc1b0dee41918299b3f568b660e95151adf
MD5 hash:
33038c8326894e4a49d0296e584a6547
SHA1 hash:
d3aa69c7cfbdb01458c94d706f00d9ca5e043bf3
Detections:
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/3070d629-5e38-4ada-9df2-853b2fcae658/
Parent samples :
a869d4bf9cb854007d1a00ddbcafde3d0aa1aab116dcbb871a59c5069a99ade7
b15e539ba1801af269c976fa743708a0fc474fcdf6ba3a7433a08dfbf9eb1425
SH256 hash:
fccedd7acc1ed610b35c2458aa596b37cd51f66c5796446c00b4846403d4ff15
MD5 hash:
22dd5f5a95463e41fd89a8f0b57ba759
SHA1 hash:
2e0016ff74a2778df22c0f41420f86b0230ff813
Link:
https://www.unpac.me/results/3070d629-5e38-4ada-9df2-853b2fcae658/
SH256 hash:
66dd1b9658222f168ce16e8fd2975b776be131a98a3663c8b54a61ebafbb2755
MD5 hash:
57676d4ed2ede86b1b47a50d6eb4d484
SHA1 hash:
2562ca5967f0376113ba36ca754aadb2cd2765cc
Link:
https://www.unpac.me/results/3070d629-5e38-4ada-9df2-853b2fcae658/
SH256 hash:
b15e539ba1801af269c976fa743708a0fc474fcdf6ba3a7433a08dfbf9eb1425
MD5 hash:
8c1cb5a9050ed3721793df739077619f
SHA1 hash:
3eafc5148e89788b6c0340e02ed53bce07b1471d
Link:
https://www.unpac.me/results/3070d629-5e38-4ada-9df2-853b2fcae658/
Malware family:
XLoader
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b15e539ba180/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/b15e539ba1801af269c976fa743708a0fc474fcdf6ba3a7433a08dfbf9eb1425

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
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Author:Elastic Security
Rule name:win_formbook_auto
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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 b15e539ba1801af269c976fa743708a0fc474fcdf6ba3a7433a08dfbf9eb1425

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2514022/
Cape
Cape
https://www.capesandbox.com/analysis/355241/

Comments


Avatar
zbet commented on 2023-01-21 03:22:12 UTC

url : hxxp://103.232.55.40/frcloudfile2/vbc.exe