MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8a8bd03d6e56297acd34652142a5cb999089c75e28decf038c43eeccc14158ba. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8a8bd03d6e56297acd34652142a5cb999089c75e28decf038c43eeccc14158ba
SHA3-384 hash: 8cd130370eb75e58acb7d1afb5dbb3cbb1926b9caeb65491d3b5e03927f2bd74bc1d473091a6892893a1f4650686ce4d
SHA1 hash: 5b9b45998957d6742bb6a2c108702f2cdf298536
MD5 hash: 8104841622a72073beb0f28da060a864
humanhash: may-arizona-robert-mobile
File name:fatura.hk.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:330'591 bytes
First seen:2022-12-07 12:16:11 UTC
Last seen:2022-12-07 13:37:44 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash ab6770b0a8635b9d92a5838920cfe770 (84 x Formbook, 30 x AgentTesla, 15 x Loki)
ssdeep 6144:QBn1FyGPg0kL7SAoDYx0AbFfVB6wRNd8kyqZkJ4ocFOnLipUE9b33hkKb:gFLozv5oDY+AbFdDR78ZbQOemEV3Co
TLSH T1176422163AC404F7D1460BB084BA972FDF31E408214A65936FE4BFFEA6671E39E1D648
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
189
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
fatura.hk.exe
Verdict:
Malicious activity
Analysis date:
2022-12-07 12:18:08 UTC
Tags:
formbook xloader trojan stealer
Link:
https://app.any.run/tasks/f35a450f-cc53-4d67-9df6-dc1d334d326d

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/343912/
Detection(s):
SecuriteInfo.com.FileRepMalware.14188.1898.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a process from a recently created file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
Reading critical registry keys
Sending a custom TCP request
Setting browser functions hooks
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/6390843e485d8463dc40d3e9/reports/b9333b26-5489-4d9f-8b76-1e8043073be2/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/b4ce9e2d-59cd-4de3-a23c-79934adb3179
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1129870
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in 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 dropped file
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 virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 762600 Sample: fatura.hk.exe Startdate: 07/12/2022 Architecture: WINDOWS Score: 100 47 Snort IDS alert for network traffic 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 Antivirus detection for URL or domain 2->51 53 5 other signatures 2->53 11 fatura.hk.exe 19 2->11         started        process3 file4 33 C:\Users\user\AppData\...\ttuzgytoke.exe, PE32 11->33 dropped 14 ttuzgytoke.exe 1 11->14         started        process5 signatures6 63 Multi AV Scanner detection for dropped file 14->63 65 Maps a DLL or memory area into another process 14->65 67 Tries to detect virtualization through RDTSC time measurements 14->67 17 ttuzgytoke.exe 14->17         started        20 conhost.exe 14->20         started        process7 signatures8 39 Modifies the context of a thread in another process (thread injection) 17->39 41 Maps a DLL or memory area into another process 17->41 43 Sample uses process hollowing technique 17->43 45 Queues an APC in another process (thread injection) 17->45 22 explorer.exe 17->22 injected process9 dnsIp10 35 www.richardsargeant.com 217.160.0.102, 49705, 80 ONEANDONE-ASBrauerstrasse48DE Germany 22->35 37 www.rhondarisley.site 209.17.116.163, 49704, 80 DEFENSE-NETUS United States 22->37 55 System process connects to network (likely due to code injection or exploit) 22->55 26 cmmon32.exe 22->26         started        signatures11 process12 signatures13 57 Modifies the context of a thread in another process (thread injection) 26->57 59 Maps a DLL or memory area into another process 26->59 61 Tries to detect virtualization through RDTSC time measurements 26->61 29 cmd.exe 1 26->29         started        process14 process15 31 conhost.exe 29->31         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8a8bd03d6e56297acd34652142a5cb999089c75e28decf038c43eeccc14158ba/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-12-07 11:05:41 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
28 of 40 (70.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rkf5aplokyuxvtjumuqufjoltgiitr26fdpm6a4mipxmzqkblc5a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:tc10 rat spyware stealer trojan
Link:
https://tria.ge/reports/221207-pf13hseh28/
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
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Executes dropped EXE
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/ef80b03e-995f-4b29-9410-3ff8430ed588
Unpacked files
SH256 hash:
6e49b2b262ac38f198d3041c9026e33d18c73016e94bde4ff1842f9d3b96939d
MD5 hash:
8b5455ff988635a46fea6849913985a2
SHA1 hash:
efdf67571da97a852a88e41112a1640074877732
Detections:
FormBook
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/6c7723c5-9a60-4f3f-9bed-c3172df1e6bb/
Parent samples :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 hash:
39eacec35a4f52bc22462f94b54dba43d0863e7e8802b7f22995a59438853385
MD5 hash:
1dd0df5125aa1c11275e8a33ba56eea7
SHA1 hash:
878ab8459a03a9cb01e40cd3d7327d9f91ccf59c
Link:
https://www.unpac.me/results/6c7723c5-9a60-4f3f-9bed-c3172df1e6bb/
SH256 hash:
8a8bd03d6e56297acd34652142a5cb999089c75e28decf038c43eeccc14158ba
MD5 hash:
8104841622a72073beb0f28da060a864
SHA1 hash:
5b9b45998957d6742bb6a2c108702f2cdf298536
Link:
https://www.unpac.me/results/6c7723c5-9a60-4f3f-9bed-c3172df1e6bb/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8a8bd03d6e56/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.18
Link:
https://yomi.yoroi.company/submissions/8a8bd03d6e56297acd34652142a5cb999089c75e28decf038c43eeccc14158ba

File information

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

Malspam

Formbook

Executable exe 8a8bd03d6e56297acd34652142a5cb999089c75e28decf038c43eeccc14158ba

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/343912/

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