MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7574a77a5c4f103109488117cd801bd745bf02ddff25852380b95a25629542e3. 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 2 File information Comments
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SHA256 hash: 7574a77a5c4f103109488117cd801bd745bf02ddff25852380b95a25629542e3
SHA3-384 hash: dda41ca94467ead52903593ce57c9b5952164f5be7a02fa1ef5ed1546b8d14a43f3922a8eb0713d15e9cbb3dfc683378
SHA1 hash: c202e7c6b30fbb607218504357373d2459612a3a
MD5 hash: 568ff253941f50cfa79579c477d34d4a
humanhash: video-green-happy-bacon
File name:Proforma Invoice 7293.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:274'280 bytes
First seen:2022-05-23 06:12:31 UTC
Last seen:2022-05-23 06:41:10 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 55f3dfd13c0557d3e32bcbc604441dd3 (124 x Formbook, 18 x Loki, 13 x AgentTesla)
ssdeep 6144:B0Yf1N9db+nIIYLO1Ota74Ls/00zRPde+3:v1N9db0ARtQ4LVcZ3
Threatray 15'809 similar samples on MalwareBazaar
TLSH T17444120963D5C577E0478CF06837D332D3B9A1593AA6336B67082BBB5D722D2C90E693
TrID 92.9% (.EXE) NSIS - Nullsoft Scriptable Install System (846567/2/133)
3.4% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
1.1% (.EXE) Win64 Executable (generic) (10523/12/4)
0.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
0.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
265
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Proforma Invoice 7293.exe
Verdict:
Malicious activity
Analysis date:
2022-05-24 03:00:30 UTC
Tags:
installer formbook trojan stealer
Link:
https://app.any.run/tasks/4deec451-a6c4-4f18-b5a8-b99b1736f5e3

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/273531/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Searching for synchronization primitives
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control.exe overlay packed shell32.dll wacatac
Link:
https://www.filescan.io/uploads/628b262b054dcf0ecae1a173/reports/8f9cad0d-e55a-4416-9ebc-bb8f6e74efde/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/c865a128-deb8-49e6-9b9b-9efc123028e5
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/999529
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Executable has a suspicious name (potential lure to open the executable)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
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 dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 632022 Sample: Proforma Invoice 7293.exe Startdate: 23/05/2022 Architecture: WINDOWS Score: 100 44 Found malware configuration 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 Antivirus detection for URL or domain 2->48 50 5 other signatures 2->50 11 Proforma Invoice 7293.exe 19 2->11         started        process3 file4 32 C:\Users\user\AppData\Local\Temp\efgbq.exe, PE32 11->32 dropped 14 efgbq.exe 11->14         started        process5 signatures6 58 Multi AV Scanner detection for dropped file 14->58 60 Machine Learning detection for dropped file 14->60 62 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 14->62 64 2 other signatures 14->64 17 efgbq.exe 14->17         started        process7 signatures8 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 Sample uses process hollowing technique 17->40 42 Queues an APC in another process (thread injection) 17->42 20 explorer.exe 17->20 injected process9 process10 22 cmd.exe 20->22         started        signatures11 52 Modifies the context of a thread in another process (thread injection) 22->52 54 Maps a DLL or memory area into another process 22->54 56 Tries to detect virtualization through RDTSC time measurements 22->56 25 explorer.exe 2 148 22->25         started        28 cmd.exe 1 22->28         started        process12 dnsIp13 34 192.168.2.1 unknown unknown 25->34 30 conhost.exe 28->30         started        process14
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/7574a77a5c4f103109488117cd801bd745bf02ddff25852380b95a25629542e3/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-05-23 01:11:22 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
16 of 26 (61.54%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ov2ko6s4j4idcckiqel43aa325c36aw574syki4axfnckyuvilrq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1c1307eefcccf13fa510b275d6286cae2b6d6fdd5c656d0fe5d5479c09df3310
Formbook
4a7aa26a59cccaa38181f61e413214368bd2cb3b8aa9c93c8694cc7d37591a3f
Formbook
51ab17fdd212d1bae66a6ec70e44b220f02a33a7e0a2785c6e69f421d79d4cdb
Formbook
6d1ae3278059d592ae7c4426df9456553b8abfbc3bd90ce0f8d1792e94ae95c2
Formbook
7f9ead41557a685c5f7cd82c6607d7bbe98397bf87cf04be8e7e7e13bea41938
Formbook
84b0888a5a6938795c26a681435c52a25c16fe2d1e6230112df171024c8767df
Formbook
a88a1ec7699128b0e1f344c880b17b839927b7580e3bf7ece152dff57d719dfe
Formbook
c1aa2253f99e2f3a49731b245dc62b2497af38392910174f1534608e105936f6
Formbook
+ 15'799 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:r75h rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220523-gyqqhabhd4/
Behaviour
Modifies registry class
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
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
4ac71d93cf04b6c35f1f242027ed859809b40bbcbe8b49587271c4fe5985337f
MD5 hash:
5cfdcdbef0165d69c444492730986f17
SHA1 hash:
f3b9c250cf9425405e519741ef8472e62ceb07fc
Link:
https://www.unpac.me/results/6f7e457b-7ab1-462a-839c-ac4febaeb238/
SH256 hash:
7574a77a5c4f103109488117cd801bd745bf02ddff25852380b95a25629542e3
MD5 hash:
568ff253941f50cfa79579c477d34d4a
SHA1 hash:
c202e7c6b30fbb607218504357373d2459612a3a
Link:
https://www.unpac.me/results/6f7e457b-7ab1-462a-839c-ac4febaeb238/
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/7574a77a5c4f103109488117cd801bd745bf02ddff25852380b95a25629542e3

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:malware_Formbook_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information

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

Malspam

Formbook

Executable exe 7574a77a5c4f103109488117cd801bd745bf02ddff25852380b95a25629542e3

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/273531/

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