MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3c081233757b9e6b0c3b74db106fb9778b2bcef8a708fc642f3e2c4e6eb74410. 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
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SHA256 hash: 3c081233757b9e6b0c3b74db106fb9778b2bcef8a708fc642f3e2c4e6eb74410
SHA3-384 hash: fd0e15c7ea40c180455ca101fc64fef94f92aa75e1d64967a0c05148d5e8996c21b5c2f76b8cad94c8b5b22e38ff1b42
SHA1 hash: 9e62f6a60c597ae0ee96caebad44e8936a8d4009
MD5 hash: e69d8210280dc0eb9e0a22ebe5a6c76a
humanhash: video-cold-october-zebra
File name:bobash2.1.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:279'021 bytes
First seen:2023-02-13 14:51:40 UTC
Last seen:2023-02-13 16:35:14 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:BYa6sjxMVY8Coew0YJkWP/2kwKpW9SWhHfPFuhaVUaBdILUF:BY6jz8Cop0YawwKYAWh/PFFVUaBdIW
TLSH T1F6541200F7B4C027E6F146710F3F9B5A59B89B26957C420B2770668DF5336A3EA0A727
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 b2e1b496a6cada72 (13 x LummaStealer, 12 x AsyncRAT, 8 x Rhadamanthys)
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
192
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
bobash2.1.exe
Verdict:
Malicious activity
Analysis date:
2023-02-13 14:56:06 UTC
Tags:
formbook xloader trojan stealer
Link:
https://app.any.run/tasks/7807c2d7-4c44-4f28-9351-5ac62c4d9d7e

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/365112/
Detection(s):
SecuriteInfo.com.FileRepMalware.11589.17193.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Searching for synchronization primitives
Launching a process
Reading critical registry keys
Сreating synchronization primitives
Launching cmd.exe command interpreter
Sending a custom TCP request
Setting browser functions hooks
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/69081/overview
Behaviour
MalwareBazaar
Gathering data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/3c081233757b9e6b0c3b74db106fb9778b2bcef8a708fc642f3e2c4e6eb74410
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/5104ad4a-4451-4c7c-95be-00c1d77568d6
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1173466
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to detect sleep reduction / modifications
Detected unpacking (changes PE section rights)
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)
Modifies the prolog of user mode functions (user mode inline hooks)
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 detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 806269 Sample: bobash2.1.exe Startdate: 13/02/2023 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 5 other signatures 2->53 11 bobash2.1.exe 19 2->11         started        process3 file4 31 C:\Users\user\AppData\Local\Temp\wnvjt.exe, PE32 11->31 dropped 14 wnvjt.exe 11->14         started        process5 signatures6 63 Detected unpacking (changes PE section rights) 14->63 65 Maps a DLL or memory area into another process 14->65 67 Tries to detect virtualization through RDTSC time measurements 14->67 69 Contains functionality to detect sleep reduction / modifications 14->69 17 wnvjt.exe 14->17         started        process7 signatures8 39 Modifies the context of a thread in another process (thread injection) 17->39 41 Maps a DLL or memory area into another process 17->41 43 Sample uses process hollowing technique 17->43 45 Queues an APC in another process (thread injection) 17->45 20 explorer.exe 4 6 17->20 injected process9 dnsIp10 33 www.allbrightpros.com 160.124.87.219, 49700, 80 POWERLINE-AS-APPOWERLINEDATACENTERHK South Africa 20->33 35 www.28yorkave.com 52.147.15.202, 49701, 80 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 20->35 37 4 other IPs or domains 20->37 55 System process connects to network (likely due to code injection or exploit) 20->55 24 cscript.exe 20->24         started        signatures11 process12 signatures13 57 Modifies the context of a thread in another process (thread injection) 24->57 59 Maps a DLL or memory area into another process 24->59 61 Tries to detect virtualization through RDTSC time measurements 24->61 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/3c081233757b9e6b0c3b74db106fb9778b2bcef8a708fc642f3e2c4e6eb74410/
Threat name:
Win32.Spyware.Noon
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Status:
Malicious
First seen:
2023-02-13 14:51:17 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
20 of 26 (76.92%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hqebem3vpopgwdb3otnra35zo6fsxtxyu4epyzbphywe43vxiqia._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:b07o rat spyware stealer trojan
Link:
https://tria.ge/reports/230213-r8p7tsdd2s/
Behaviour
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Enumerates physical storage devices
Suspicious use of SetThreadContext
Executes dropped EXE
Loads dropped DLL
Blocklisted process makes network request
Formbook payload
Formbook
Unpacked files
SH256 hash:
40ebf932399085c2f7ede858eb9027ee154ff1471df3cbe9405b00a7b36bbd87
MD5 hash:
bc4c9add11198aae29ba077ea1188827
SHA1 hash:
8ea088b498b02b39f24b78d6c9f7a71e9ad49d08
Detections:
FormBook
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win_formbook_w0
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win_formbook_auto
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win_formbook_g0
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Link:
https://www.unpac.me/results/d1d6779e-06ff-4415-9abb-33867ae0858e/
Parent samples :
427b32faad1663fbe559c2044e382ad604e8df17b78e5450cb3dab2b55db5df3
3c081233757b9e6b0c3b74db106fb9778b2bcef8a708fc642f3e2c4e6eb74410
4e11fcc1a1b57eda0d4a01087856ab72ea159ec8ad1f8430c0db94fb250c65e2
ad8fd0b0690db382dc13e6e8a7365581877af214c39ca5dd673b8cea760e8891
SH256 hash:
eeccb2f9fbd66eb7b53834245fabd6c7f990a51e904174dff24839f704ee8ef4
MD5 hash:
a403bebb986c9757189328d01e77ff94
SHA1 hash:
c51a9f73a97127b2dc1d0752a9c66c94201e30b9
Link:
https://www.unpac.me/results/d1d6779e-06ff-4415-9abb-33867ae0858e/
SH256 hash:
3c081233757b9e6b0c3b74db106fb9778b2bcef8a708fc642f3e2c4e6eb74410
MD5 hash:
e69d8210280dc0eb9e0a22ebe5a6c76a
SHA1 hash:
9e62f6a60c597ae0ee96caebad44e8936a8d4009
Link:
https://www.unpac.me/results/d1d6779e-06ff-4415-9abb-33867ae0858e/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3c081233757b/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/3c081233757b9e6b0c3b74db106fb9778b2bcef8a708fc642f3e2c4e6eb74410

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:azov_Dropped
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Author:Potatech
Description:Azov Detection
Rule name:meth_get_eip
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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
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Author:@malgamy12

File information

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

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/365112/

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