MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a1bc3777d05c582fde6d64e54361d4a493360a90b4e91b3b6dc64590c8f283d6. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments 1
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SHA256 hash: a1bc3777d05c582fde6d64e54361d4a493360a90b4e91b3b6dc64590c8f283d6
SHA3-384 hash: 9d737ec94b0562aed48bcd923d44af39ac093062bc6be9962d52a6092fc70a9eedc91f4154a36a57f912d155e58ddc48
SHA1 hash: fd201fc273ea2aa6a050d84f8f3eb5a479da7ded
MD5 hash: b84882bcdf8029a3d90e599143ea52f3
humanhash: oranges-hydrogen-fanta-bakerloo
File name:b84882bcdf8029a3d90e599143ea52f3
Download: download sample
Signature Formbook
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File size:30'720 bytes
First seen:2022-06-14 00:08:51 UTC
Last seen:2022-06-14 00:31:34 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 768:rKjsk6S3bO4GCNf7ojFYwQ7XvLWRgcL0ST8iNxy2H:rk76S3bO4Gsm7oWRgcL9HNxvH
TLSH T131D2B01BF394CA39E97607352E6313014B78B496DC27DBAFA480611B7E233F10997AB5
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)
File icon (PE):PE icon
dhash icon b28ccaacda53d39b (34 x Formbook, 1 x BitRAT, 1 x SnakeKeylogger)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
318
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
b84882bcdf8029a3d90e599143ea52f3
Verdict:
Malicious activity
Analysis date:
2022-06-14 00:13:40 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/61b044af-c106-4fae-b46a-d359b163bc8a

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/279543/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.39797022.8847.862.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Launching a process
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Running batch commands
Creating a process with a hidden window
Creating a file in the %AppData% subdirectories
Creating a file
Launching cmd.exe command interpreter
Searching for synchronization primitives
Setting browser functions hooks
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed wacatac
Link:
https://www.filescan.io/uploads/62a7d1dd8763ffd4adc0ff52/reports/aab442c7-4f39-44dc-9cd4-bfd829dca78e/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/488bae9a-13ec-43b5-8baa-24b6fa5a9edd
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1012471
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
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 domain / URL
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 sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected Costura Assembly Loader
Yara detected FormBook
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 644967 Sample: xjOCZSSF6i Startdate: 14/06/2022 Architecture: WINDOWS Score: 100 50 Snort IDS alert for network traffic 2->50 52 Multi AV Scanner detection for domain / URL 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 9 other signatures 2->56 9 xjOCZSSF6i.exe 15 7 2->9         started        process3 dnsIp4 48 lambweston.ga 192.185.174.179, 49757, 80 UNIFIEDLAYER-AS-1US United States 9->48 38 C:\Users\user\AppData\...\xjOCZSSF6i.exe.log, ASCII 9->38 dropped 40 C:\Users\user\AppData\...\Kjurtafb.exe, PE32 9->40 dropped 60 Creates an undocumented autostart registry key 9->60 14 MSBuild.exe 9->14         started        17 powershell.exe 15 9->17         started        19 cmd.exe 1 9->19         started        file5 signatures6 process7 signatures8 62 Modifies the context of a thread in another process (thread injection) 14->62 64 Maps a DLL or memory area into another process 14->64 66 Sample uses process hollowing technique 14->66 68 2 other signatures 14->68 21 explorer.exe 14->21 injected 25 conhost.exe 17->25         started        27 conhost.exe 19->27         started        29 timeout.exe 1 19->29         started        process9 dnsIp10 42 specialroute.net 173.254.104.205, 49844, 80 UNIFIEDLAYER-AS-1US United States 21->42 44 watchmyreview.com 15.197.142.173, 49846, 80 TANDEMUS United States 21->44 46 7 other IPs or domains 21->46 58 System process connects to network (likely due to code injection or exploit) 21->58 31 cscript.exe 21->31         started        34 conhost.exe 25->34         started        signatures11 process12 signatures13 70 Modifies the context of a thread in another process (thread injection) 31->70 72 Maps a DLL or memory area into another process 31->72 74 Tries to detect virtualization through RDTSC time measurements 31->74 36 cmd.exe 1 31->36         started        process14
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/a1bc3777d05c582fde6d64e54361d4a493360a90b4e91b3b6dc64590c8f283d6/
Threat name:
ByteCode-MSIL.Spyware.Noon
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Status:
Malicious
First seen:
2022-06-13 20:46:50 UTC
AV detection:
14 of 26 (53.85%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ug6do56qlrmc7xtnmtsugyouusjtmcuqwturwo3nyzczbshsqpla._file
Verdict:
malicious
Label(s):
formbook
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masslogger
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Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:s4s9 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220614-affz1sfeg7/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
a1bc3777d05c582fde6d64e54361d4a493360a90b4e91b3b6dc64590c8f283d6
MD5 hash:
b84882bcdf8029a3d90e599143ea52f3
SHA1 hash:
fd201fc273ea2aa6a050d84f8f3eb5a479da7ded
Link:
https://www.unpac.me/results/085f16cf-d09a-4415-8622-e1be3b49bcaa/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a1bc3777d05c/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/a1bc3777d05c582fde6d64e54361d4a493360a90b4e91b3b6dc64590c8f283d6

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
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Rule name:Skystars_Malware_Imphash
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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 a1bc3777d05c582fde6d64e54361d4a493360a90b4e91b3b6dc64590c8f283d6

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2237087/
Cape
Cape
https://www.capesandbox.com/analysis/279543/

Comments


Avatar
zbet commented on 2022-06-14 00:08:59 UTC

url : hxxp://104.168.32.14/g/mmc.exe