MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 55cf18f4491e2db87c5612b2501dbbd3acd9c6460b1863ab56f5d9209cbecbdc. 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: 55cf18f4491e2db87c5612b2501dbbd3acd9c6460b1863ab56f5d9209cbecbdc
SHA3-384 hash: 17b7f0344939a521f2c6c96ef23cfbfc482a47fd4a4d56eb4d59b8772accf60723ab98638a2b59f00bafdcc9e13bd5ed
SHA1 hash: 5870616cb9ffb4fe188c6ca46e218e7a6cd18e2c
MD5 hash: ab18cf1ce83c83a27765ac39fe7b81e3
humanhash: purple-pip-cup-kansas
File name:FKEC-18112022.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:475'136 bytes
First seen:2022-11-18 08:46:55 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 12288:jBG0oE7U3X+yAU/62oCAEpgIQVq8oE5ocmaqypmPgS+:jBLoEOX+yArPCAEpgIQs8o0oBaqyp
Threatray 608 similar samples on MalwareBazaar
TLSH T15EA402D82B746F47EF9AC971FA3D95594B30EA81BC72659130C244A24D16683CCFA2F3
TrID 48.7% (.EXE) Win64 Executable (generic) (10523/12/4)
23.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
9.3% (.EXE) OS/2 Executable (generic) (2029/13)
9.2% (.EXE) Generic Win/DOS Executable (2002/3)
9.2% (.EXE) DOS Executable Generic (2000/1)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
233
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
FKEC-18112022.exe
Verdict:
No threats detected
Analysis date:
2022-11-18 08:47:42 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/40a447c0-d2fc-411c-a28d-28365816f798

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/335691/
Detection(s):
SecuriteInfo.com.Malware.PDB-43.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Launching a process
Creating a file
Searching for synchronization primitives
Сreating synchronization primitives
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/637746877db879aacbcec3f0/reports/61c462f1-e853-4250-84d5-6b75d558bdc9/overview
Result
Verdict:
UNKNOWN
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/7a23b728-3f18-4ba3-9ec0-8001b017cd9e
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1116394
Signature
.NET source code contains very large array initializations
.NET source code references suspicious native API functions
Antivirus detection for URL or domain
C2 URLs / IPs found in 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)
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
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 749106 Sample: FKEC-18112022.exe Startdate: 18/11/2022 Architecture: WINDOWS Score: 100 40 Malicious sample detected (through community Yara rule) 2->40 42 Antivirus detection for URL or domain 2->42 44 Multi AV Scanner detection for submitted file 2->44 46 6 other signatures 2->46 10 FKEC-18112022.exe 1 2->10         started        process3 file4 32 C:\Users\user\...\FKEC-18112022.exe.log, CSV 10->32 dropped 56 Writes to foreign memory regions 10->56 58 Injects a PE file into a foreign processes 10->58 14 CasPol.exe 10->14         started        signatures5 process6 signatures7 60 Modifies the context of a thread in another process (thread injection) 14->60 62 Maps a DLL or memory area into another process 14->62 64 Sample uses process hollowing technique 14->64 66 2 other signatures 14->66 17 explorer.exe 14->17 injected process8 dnsIp9 34 www.qhqfoq.cyou 45.150.227.220, 49699, 80 ASN-QUADRANET-GLOBALUS United Kingdom 17->34 36 www.warpaint-stud.com 17->36 38 www.gaozhongjianzhi.com 17->38 48 System process connects to network (likely due to code injection or exploit) 17->48 21 WWAHost.exe 17->21         started        24 autofmt.exe 17->24         started        26 autoconv.exe 17->26         started        signatures10 process11 signatures12 50 Modifies the context of a thread in another process (thread injection) 21->50 52 Maps a DLL or memory area into another process 21->52 54 Tries to detect virtualization through RDTSC time measurements 21->54 28 cmd.exe 1 21->28         started        process13 process14 30 conhost.exe 28->30         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/55cf18f4491e2db87c5612b2501dbbd3acd9c6460b1863ab56f5d9209cbecbdc/
Threat name:
ByteCode-MSIL.Spyware.Noon
Create hunting rule
Status:
Malicious
First seen:
2022-11-18 08:27:23 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
1
AV detection:
10 of 26 (38.46%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=kxhrr5cjdyw3q7cwckzfahn32owntrsgbmmghk2w6xmsbhf6zpoa._file
Verdict:
unknown
Similar samples:
059c47f1fb93e65580c59415a40a376c8fc3168f13282f2f5efddd4c54ce0fac
Formbook
1ee453a94d90e6bd3615d306d7139c3abb5b7ea4f9f817a10218606c4aadcddf
Formbook
36b5580f0239d0e3ab71541b1bdbc26f6e3e397cb1978b91c9e358e52a03de79
Formbook
36db39aad52ff2ece38ada70f14ef45da78434311c1043bbb4beead602481d7e
Formbook
3c181fbe5ba30cd988fe7ec49ceecb2962627f309613f63d674405127ba67f11
Formbook
c4a2d1a93c9da2d51ae8d0ef88b1dbf6fecd931714d9a09221c4f928f6861ce3
Formbook
c6070d16218077441b9faa6ed769b764e27d7a506c2eea9ee98527d88f2c8eae
Formbook
d1ca3f8fb1acd28ee6ce1227880e74fca8aa908ca373931a5180f3cb76bb8fe1
Formbook
f0c54f3f1717c1039dacdf7c4b63200d6f027e5a622c6eb65636d2089aa4b1c0
Formbook
+ 598 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:th47 rat spyware stealer trojan
Link:
https://tria.ge/reports/221118-kpvvmsch3v/
Behaviour
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
Suspicious use of SetThreadContext
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/b4af1531-7ddd-48ea-90fe-8d3088c02086
Unpacked files
SH256 hash:
55cf18f4491e2db87c5612b2501dbbd3acd9c6460b1863ab56f5d9209cbecbdc
MD5 hash:
ab18cf1ce83c83a27765ac39fe7b81e3
SHA1 hash:
5870616cb9ffb4fe188c6ca46e218e7a6cd18e2c
Link:
https://www.unpac.me/results/474b23a3-2da6-4b83-88cd-4e0b9227e784/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/55cf18f4491e/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
Rule name:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB

File information

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

Malspam

Formbook

Executable exe 55cf18f4491e2db87c5612b2501dbbd3acd9c6460b1863ab56f5d9209cbecbdc

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/335691/

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