MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 91dcc4e55ff38d4e7528fe0e1b087285edd7aff2c76f33724356a64eee151ca4. 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: 11


Intelligence 11 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 91dcc4e55ff38d4e7528fe0e1b087285edd7aff2c76f33724356a64eee151ca4
SHA3-384 hash: 4877fd4660a3ae855ac888d5a07f59c696107d054fd39a1607dcb841512bfe19bcbb772573cd9d07fa1daffda08bc96b
SHA1 hash: bcc9f299e80c23fd8ddec5112458358b65d03980
MD5 hash: 0831665396fc0e18e3b503dc628df797
humanhash: alaska-floor-missouri-sad
File name:0831665396fc0e18e3b503dc628df797
Download: download sample
Signature Formbook
Create hunting rule
File size:827'392 bytes
First seen:2021-06-24 12:20:02 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 24576:JtnWyEvc/LfaWEO3Cu8giM+M4Ez0xc/B:XImfayzN/xz0xcp
Threatray 6'038 similar samples on MalwareBazaar
TLSH EE05C0212AEA5219F177AF745FD079929BAEFF237B02E44E285133470633A81DD9063D
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
115
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
0831665396fc0e18e3b503dc628df797
Verdict:
Malicious activity
Analysis date:
2021-06-24 12:23:08 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/594e6557-93db-4582-8910-c903be1c2a30

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/168019/
Detection(s):
Win.Packed.Negasteal-9874035-0
Create hunting rule

Win.Packed.Negasteal-9874273-0
Create hunting rule

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/381aa7f8-08f0-4fa6-b0ec-f72582256ecd
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/807452
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Found malware configuration
Injects a PE file into a foreign processes
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 domain / URL
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: CMSTP Execution Process Creation
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 dnsIp2 2 Behavior Graph ID: 439863 Sample: ZQGMiyaTir Startdate: 24/06/2021 Architecture: WINDOWS Score: 100 27 www.redudiban.com 2->27 29 www.hazard-protection.com 2->29 47 Multi AV Scanner detection for domain / URL 2->47 49 Found malware configuration 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 8 other signatures 2->53 9 ZQGMiyaTir.exe 3 2->9         started        13 explorer.exe 2->13         started        signatures3 process4 dnsIp5 25 C:\Users\user\AppData\...\ZQGMiyaTir.exe.log, ASCII 9->25 dropped 55 Detected unpacking (changes PE section rights) 9->55 57 Tries to detect virtualization through RDTSC time measurements 9->57 59 Injects a PE file into a foreign processes 9->59 16 ZQGMiyaTir.exe 9->16         started        31 www.hfjxhs.com 156.241.53.161, 49752, 80 XIAOZHIYUN1-AS-APICIDCNETWORKUS Seychelles 13->31 33 cleanxcare.com 78.31.67.91, 49728, 80 MYLOC-ASIPBackboneofmyLocmanagedITAGDE Germany 13->33 35 17 other IPs or domains 13->35 61 System process connects to network (likely due to code injection or exploit) 13->61 19 cmstp.exe 13->19         started        file6 signatures7 process8 signatures9 37 Modifies the context of a thread in another process (thread injection) 16->37 39 Maps a DLL or memory area into another process 16->39 41 Sample uses process hollowing technique 16->41 43 Queues an APC in another process (thread injection) 16->43 45 Tries to detect virtualization through RDTSC time measurements 19->45 21 cmd.exe 1 19->21         started        process10 process11 23 conhost.exe 21->23         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/91dcc4e55ff38d4e7528fe0e1b087285edd7aff2c76f33724356a64eee151ca4/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-06-20 01:36:55 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
146f5b2544e98818cbe9813068d6f08037df0e29a3b83d4d2fce3e1bfc444f2a
Formbook
14b95763e86e899de22402ae2d7204ff7d9ceab85a12a1599a6c8d5964fa306a
Formbook
196b6069472a478c158cae56200e7d627d7e6b32ab1f361a36b75234bbf998de
Formbook
41d1baa905b28a22e738f7379125e26301e240815e85ef0492b6061432cfe139
Formbook
719604b516f11740266b2c7a8a61129f779caf4c1f9e16bac35d39f5792a009b
Formbook
780555ffbda34b2fe63790a38a7c3e4df0b437d17c22fe7c886fcd2ee72684d0
Formbook
97eac548a519771c90d729ee721eaa2519782e6aa0dbedc9cef35e938f68858e
Formbook
b0c5cf38270aad92b5a686dcb145d2baf71a7c4dcef6b853ba3e52e9b349f4e5
Formbook
e1339c4548f73e4f250fed46d56bbce84491ca122aed7527731bb8d72df83e11
Formbook
fa768e26f300f2c19ef11635dd836b031e0b5352d86d40cdc24284bf874230e7
Formbook
+ 6'028 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader loader rat
Link:
https://tria.ge/reports/210624-gxj2dpczm6/
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.adultpeace.com/p2io/
Unpacked files
SH256 hash:
48509c63423aae1b674071673f458d953000df32f7f81e958db3237d390968d1
MD5 hash:
19d62df6c0b0c70f50c37cc56dcd6567
SHA1 hash:
78e98434b1aa1d18561ee52ea366c36dc2d762e5
Link:
https://www.unpac.me/results/74577fef-0ec5-49a5-88fe-c5080a1acc65/
SH256 hash:
91dcc4e55ff38d4e7528fe0e1b087285edd7aff2c76f33724356a64eee151ca4
MD5 hash:
0831665396fc0e18e3b503dc628df797
SHA1 hash:
bcc9f299e80c23fd8ddec5112458358b65d03980
Link:
https://www.unpac.me/results/74577fef-0ec5-49a5-88fe-c5080a1acc65/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/91dcc4e55ff38d4e7528fe0e1b087285edd7aff2c76f33724356a64eee151ca4

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: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 91dcc4e55ff38d4e7528fe0e1b087285edd7aff2c76f33724356a64eee151ca4

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/168019/
  
URLhaus
https://urlhaus.abuse.ch/url/1394578/

Comments