MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0f555c4b2772b0955e8c475de56d0a24f8c54f316c82a6e0cfb5bc2b228af6ef. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 0f555c4b2772b0955e8c475de56d0a24f8c54f316c82a6e0cfb5bc2b228af6ef
SHA3-384 hash: 73998dd80a7ddd9f86692ab0256a10267381e1917d76526d5691aa10028199543232cb3359cd55ab234ce5d88331258d
SHA1 hash: b0fed245e38c0f5fc17793f2a72465a2da3ba646
MD5 hash: da2d94bc3c285e408df54ff1595965ee
humanhash: eleven-jupiter-venus-helium
File name:da2d94bc3c285e408df54ff1595965ee
Download: download sample
Signature Formbook
Create hunting rule
File size:611'328 bytes
First seen:2021-10-25 15:35:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:J1rDGXhj8kZO6zjycepd9Z5H67ZwlazwRjPfZ0RA:zrDGXZLRzjycepHZ52ZAjFPfZ0R
Threatray 10'792 similar samples on MalwareBazaar
TLSH T14CD45A1CE86850BDC30AFB3E9620740CB7D6E95391DEE3CE978631E51605F9BEA140B9
File icon (PE):PE icon
dhash icon ccc4e8e8d8c8ccd4 (1 x Formbook)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
234
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/199957/
Detection(s):
Win.Dropper.AgentTesla-9904037-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/6176cee9db358dd15ed9a0a7/reports/3c9d9835-f76c-4d4f-bdd1-e5c406c63209/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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b3bf1ec2-6437-4157-a4d1-68eee8ac4763
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/876423
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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 AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 508856 Sample: U8NUCQkg3s Startdate: 25/10/2021 Architecture: WINDOWS Score: 100 36 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->36 38 Found malware configuration 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 6 other signatures 2->42 10 U8NUCQkg3s.exe 3 2->10         started        process3 file4 28 C:\Users\user\AppData\...\U8NUCQkg3s.exe.log, ASCII 10->28 dropped 54 Tries to detect virtualization through RDTSC time measurements 10->54 56 Injects a PE file into a foreign processes 10->56 14 U8NUCQkg3s.exe 10->14         started        signatures5 process6 signatures7 58 Modifies the context of a thread in another process (thread injection) 14->58 60 Maps a DLL or memory area into another process 14->60 62 Sample uses process hollowing technique 14->62 64 Queues an APC in another process (thread injection) 14->64 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.girlspiter.club 23.105.244.169, 49825, 80 SERVERS-COMUS Russian Federation 17->30 32 www.bestwarsawhotels.com 91.134.15.231, 80 OVHFR France 17->32 34 10 other IPs or domains 17->34 44 System process connects to network (likely due to code injection or exploit) 17->44 21 cmd.exe 17->21         started        signatures10 process11 signatures12 46 Self deletion via cmd delete 21->46 48 Modifies the context of a thread in another process (thread injection) 21->48 50 Maps a DLL or memory area into another process 21->50 52 Tries to detect virtualization through RDTSC time measurements 21->52 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/0f555c4b2772b0955e8c475de56d0a24f8c54f316c82a6e0cfb5bc2b228af6ef/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-10-20 03:06:46 UTC
AV detection:
20 of 25 (80.00%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
04ed65784009bd39c546c4a6473a44799d0444d40ff9796c2921a70db6ec2a72
Formbook
2ef7e1f834d6901fe15bcdbf1c35bb858b921e959d233065277a1457bd72549d
Formbook
2f2831bdecd1f925134fd944fc57f84b76ffe872e01c66f3662f1f9194a4b362
Formbook
4312338fa3a54a500f4ad22298d914752370161989187183b296255478f189c7
Formbook
4dc95a3bcf000bee17c567dcb6047c2e523641ad704f6e677421e817440c51f4
Formbook
67c2d1838c17151b34861887e15359c92dad555ce861d809b2f7cd9688e4455c
Formbook
96a54086e0d1667ed27dacd61ce88129d2ae1236718babe4ee5b3054385cc215
Formbook
9c9a99423087bdfd23df04a29984273ba056021ee54e815d2cd85103a9548eff
Formbook
affea9c276ded88eea1e39ac39fb19373c4b62d4251fb1d06f37a05e35dfa463
Formbook
de77b81edea1415267968223cc3a1d67f95ebf87a8830363492d19e4126f1f2d
Formbook
+ 10'782 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:mexq loader rat
Link:
https://tria.ge/reports/211025-s1w6vagch8/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.aliexpress-br.com/mexq/
Unpacked files
SH256 hash:
cdcc0861e8b5470d5a925f716b26ddce9fef3bf46940b9bbbbdfe73c3a213d2d
MD5 hash:
100ab8d220e44515f3991b41a16f772c
SHA1 hash:
7bb1b8da84e68add74bf652f9bdb5f91a7d2d98f
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/1db017d3-925f-4a55-a67b-25a0b7659c20/
Parent samples :
de77b81edea1415267968223cc3a1d67f95ebf87a8830363492d19e4126f1f2d
2f2831bdecd1f925134fd944fc57f84b76ffe872e01c66f3662f1f9194a4b362
9c9a99423087bdfd23df04a29984273ba056021ee54e815d2cd85103a9548eff
04ed65784009bd39c546c4a6473a44799d0444d40ff9796c2921a70db6ec2a72
0f555c4b2772b0955e8c475de56d0a24f8c54f316c82a6e0cfb5bc2b228af6ef
SH256 hash:
4de90e1d01a266d8df394517ce01c5985f33096f9d451de1b34d08213bd7723b
MD5 hash:
1aa8ca45b16a7187137ff3bb91dc0014
SHA1 hash:
cf930a42ce8303b641d8800a4ce8c395b302b9dc
Link:
https://www.unpac.me/results/1db017d3-925f-4a55-a67b-25a0b7659c20/
SH256 hash:
6fee24a1398bb022d0c5b9059b9b21e7636fc3861866a583d0e49b7d0ca56d58
MD5 hash:
36e2528c3cb3ad299ea481283687cdd6
SHA1 hash:
1981340bc7be1aa8f78f942fc6f0724838e35a87
Link:
https://www.unpac.me/results/1db017d3-925f-4a55-a67b-25a0b7659c20/
SH256 hash:
0f555c4b2772b0955e8c475de56d0a24f8c54f316c82a6e0cfb5bc2b228af6ef
MD5 hash:
da2d94bc3c285e408df54ff1595965ee
SHA1 hash:
b0fed245e38c0f5fc17793f2a72465a2da3ba646
Link:
https://www.unpac.me/results/1db017d3-925f-4a55-a67b-25a0b7659c20/
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/0f555c4b2772b0955e8c475de56d0a24f8c54f316c82a6e0cfb5bc2b228af6ef

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: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 0f555c4b2772b0955e8c475de56d0a24f8c54f316c82a6e0cfb5bc2b228af6ef

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1712990/
Cape
Cape
https://www.capesandbox.com/analysis/199957/

Comments