MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a951393c48c8b443dfb70fca4cadb74b4f4479ed081abb001fd28aa5ed56498c. 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: 16


Intelligence 16 IOCs YARA 11 File information Comments
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SHA256 hash: a951393c48c8b443dfb70fca4cadb74b4f4479ed081abb001fd28aa5ed56498c
SHA3-384 hash: 5c7b49ca5bc34bce41e4feb2c1f8036b7197c5eb1076e2feb3aaf2b74203059dde5042ac81241cfd4f792ddc194975b3
SHA1 hash: 0876886801a27965b24da905293d62f21ec4295a
MD5 hash: c212831e2d5b2a66745e362561e34b12
humanhash: mike-pizza-early-nineteen
File name:a951393c48c8b443dfb70fca4cadb74b4f4479ed081abb001fd28aa5ed56498c
Download: download sample
Signature Formbook
Create hunting rule
File size:185'856 bytes
First seen:2024-04-08 07:50:11 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 3072:1xEUkOmDbSNE3OIF1KLaA6i/hYlrQ7Rj4+aYS7JSWoE:vfqO81KaA6ip2aXh
TLSH T13E04AE32D642C030E2F211B5B6BD1B7B483D0E353695A5A6A3E216E06FE49E5F43931F
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
289
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
a951393c48c8b443dfb70fca4cadb74b4f4479ed081abb001fd28aa5ed56498c.exe
Verdict:
No threats detected
Analysis date:
2024-04-08 08:04:45 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/cbfe8545-ec59-40db-b8e0-045a0ea031f4

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
config-extracted formbook formbook packed
Link:
https://www.filescan.io/uploads/6613a1ec6e53ce7981e9ef73/reports/a7aba09f-631e-4fe7-9787-8f723db1baa5/overview
Verdict:
Malicious
Labled as:
Lazy.Generic
Link:
https://www.hybrid-analysis.com/sample/a951393c48c8b443dfb70fca4cadb74b4f4479ed081abb001fd28aa5ed56498c
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/a79c645f-aef4-4375-ace1-1f0e3c6c4475
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1422070
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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
Sigma detected: Suspicious Creation with Colorcpl
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 dnsIp2 2 Behavior Graph ID: 1422070 Sample: 4V457bAGOD.exe Startdate: 08/04/2024 Architecture: WINDOWS Score: 100 24 www.whefgf.club 2->24 26 www.unitygiftingco.store 2->26 28 11 other IPs or domains 2->28 42 Snort IDS alert for network traffic 2->42 44 Found malware configuration 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 8 other signatures 2->48 10 4V457bAGOD.exe 2->10         started        signatures3 process4 signatures5 50 Modifies the context of a thread in another process (thread injection) 10->50 52 Maps a DLL or memory area into another process 10->52 54 Sample uses process hollowing technique 10->54 56 2 other signatures 10->56 13 explorer.exe 73 7 10->13 injected process6 dnsIp7 30 rutgersorthopedics.com 15.197.142.173, 49709, 80 TANDEMUS United States 13->30 32 www.dibujosparapintar.net 82.98.171.86, 49710, 80 DINAHOSTING-ASES Spain 13->32 34 www.gltip2le.shop 47.243.184.4, 49706, 49708, 80 CNNIC-ALIBABA-US-NET-APAlibabaUSTechnologyCoLtdC United States 13->34 58 System process connects to network (likely due to code injection or exploit) 13->58 17 colorcpl.exe 12 13->17         started        signatures8 process9 signatures10 36 Modifies the context of a thread in another process (thread injection) 17->36 38 Maps a DLL or memory area into another process 17->38 40 Tries to detect virtualization through RDTSC time measurements 17->40 20 cmd.exe 1 17->20         started        process11 process12 22 conhost.exe 20->22         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a951393c48c8b443dfb70fca4cadb74b4f4479ed081abb001fd28aa5ed56498c
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/a951393c48c8b443dfb70fca4cadb74b4f4479ed081abb001fd28aa5ed56498c/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2024-04-08 07:51:08 UTC
File Type:
PE (Exe)
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vfitspcizc2ehx5xb7fezlnxjnhui6pnbanlwaa72kfkl3kwjgga._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:kh11 rat
Link:
https://tria.ge/reports/240408-jptrxacc52/
Behaviour
Suspicious behavior: EnumeratesProcesses
Unpacked files
SH256 hash:
a951393c48c8b443dfb70fca4cadb74b4f4479ed081abb001fd28aa5ed56498c
MD5 hash:
c212831e2d5b2a66745e362561e34b12
SHA1 hash:
0876886801a27965b24da905293d62f21ec4295a
Detections:
FormBook
Create hunting rule
win_formbook_w0
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win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Formbook
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Link:
https://www.unpac.me/results/34f558b6-2c57-4740-9622-0fef90b3b678/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a951393c48c8/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a951393c48c8b443dfb70fca4cadb74b4f4479ed081abb001fd28aa5ed56498c

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:Formbook
Create hunting rule
Author:kevoreilly
Description:Formbook Payload
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
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Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/formbook-adopts-cab-less-approach
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
Create hunting rule
Author:@malgamy12

File information

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

Malspam

Formbook

Executable exe a951393c48c8b443dfb70fca4cadb74b4f4479ed081abb001fd28aa5ed56498c

(this sample)

  
Delivery method
Distributed via e-mail attachment

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

Comments