MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 41a777eaec8aab590f8f5cd6dce86bc1376b9eb61df1c9661cf0fd93f0d2d767. 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 1 File information Comments
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SHA256 hash: 41a777eaec8aab590f8f5cd6dce86bc1376b9eb61df1c9661cf0fd93f0d2d767
SHA3-384 hash: 76d352d5741a9df043f41ed5bbf3456c652c5160175ecee1eab03e02a29e8d4a278b45d268403411d3ab61e4eb4cb393
SHA1 hash: 0fcf1562c5beec55340c7f65ecbe106825b171bc
MD5 hash: 825107e00ec3f05e390b858973d8447d
humanhash: violet-mountain-earth-bacon
File name:Receipt!!!.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:277'377 bytes
First seen:2022-05-30 15:17:50 UTC
Last seen:2022-06-06 11:14:30 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 55f3dfd13c0557d3e32bcbc604441dd3 (124 x Formbook, 18 x Loki, 13 x AgentTesla)
ssdeep 6144:B0YMZdv42DmmwXJ3Y4JNNl3AvjgUxy21LS7p0LcpWjaTS:YTyK0Uxt1uVIc0L
Threatray 15'963 similar samples on MalwareBazaar
TLSH T16D4412A276D19CF6E5462FB000779F66C7F5DB12232E354F03215EFA6F660C26A1A342
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 :
4
# of downloads :
332
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Receipt!!!.exe
Verdict:
Malicious activity
Analysis date:
2022-05-30 15:20:00 UTC
Tags:
installer formbook trojan stealer
Link:
https://app.any.run/tasks/dc7177ba-72f0-4568-a788-30ce9acd9c53

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/275519/
Detection(s):
SecuriteInfo.com.Trojan.NSISX.Spy.Gen.2.27653.23750.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Sending a custom TCP request
Launching a process
Searching for synchronization primitives
Сreating synchronization primitives
Launching cmd.exe command interpreter
Setting browser functions hooks
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 formbook overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/6294e02b6bd27afab4674a29/reports/4a00eaae-bdeb-4781-a3b8-a184f94d4461/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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5990baf8-24f9-4687-bde8-713449df8a83
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/1003763
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 636259 Sample: Receipt!!!.exe Startdate: 30/05/2022 Architecture: WINDOWS Score: 92 17 Found malware configuration 2->17 19 Malicious sample detected (through community Yara rule) 2->19 21 Antivirus detection for URL or domain 2->21 23 3 other signatures 2->23 7 Receipt!!!.exe 19 2->7         started        process3 file4 15 C:\Users\user\AppData\Local\Temp\uzmrj.exe, PE32 7->15 dropped 10 uzmrj.exe 7->10         started        process5 signatures6 25 Multi AV Scanner detection for dropped file 10->25 13 uzmrj.exe 10->13         started        process7
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/41a777eaec8aab590f8f5cd6dce86bc1376b9eb61df1c9661cf0fd93f0d2d767/
Threat name:
Win32.Trojan.GenericML
Create hunting rule
Status:
Malicious
First seen:
2022-05-30 14:29:29 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=igtxp2xmrkvvsd4pltlnz2dlye3wxhvwdxy4szq46d6zh4gs25tq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
363c3288efc15bdba3db28988766e6554fca04e6bcb49e094f7a521388016fe8
Formbook
3c010d88a118ba3cc666e05c6f8f82159ac38e5486b5ed60c65d870287b8cff6
Formbook
945f67ae677681e14db036f753f47333556fea6f3837bef7399e440e6bc167d5
Formbook
9cc59c41a1a4636cca3666a82734007019864ad4657402a67a7956cf7c0342c5
Formbook
a440ad6e3c6d444ce1566fb0f29b25314f7a503615c17a27acc6aab671d130ca
Formbook
a88a1ec7699128b0e1f344c880b17b839927b7580e3bf7ece152dff57d719dfe
Formbook
db912789ffc493f082adea43b0213611eb8f30691ec2496cf2ce534f67473cda
Formbook
e7962cdd23b186bb033234ee3275fef94db2650f2a15fd78b25c8a2662effc80
Formbook
f0023062662c42d563fd03a92e4ed00a14cf78d4c6debde99fe168babf6fa347
Formbook
+ 15'953 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:rsea rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220530-spk97shge9/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
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:
8f525a1d27827996e42a409a00e344a5e17f8ce5476d2b8bccaf2380ce5388de
MD5 hash:
dd5c88ba596026e05209aad82aec7f8e
SHA1 hash:
5cea79d30599a2434a73e83badb9f3f4aea05c4d
Link:
https://www.unpac.me/results/1da19663-da82-4092-81dc-3cd1189c741d/
SH256 hash:
41a777eaec8aab590f8f5cd6dce86bc1376b9eb61df1c9661cf0fd93f0d2d767
MD5 hash:
825107e00ec3f05e390b858973d8447d
SHA1 hash:
0fcf1562c5beec55340c7f65ecbe106825b171bc
Link:
https://www.unpac.me/results/1da19663-da82-4092-81dc-3cd1189c741d/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/41a777eaec8a/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/41a777eaec8aab590f8f5cd6dce86bc1376b9eb61df1c9661cf0fd93f0d2d767

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:crime_win32_ransom_avaddon_1
Create hunting rule
Author:@VK_Intel
Description:Detects Avaddon ransomware
Reference:https://twitter.com/VK_Intel/status/1300944441390370819

File information

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

Malspam

Formbook

rar d81906a5160a325d84b247919458ee2d0bca402022ada43bca1ccef78d141f0a

Formbook

Executable exe 41a777eaec8aab590f8f5cd6dce86bc1376b9eb61df1c9661cf0fd93f0d2d767

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/275519/
  
Dropped by
SHA256 d81906a5160a325d84b247919458ee2d0bca402022ada43bca1ccef78d141f0a
  
Dropped by
MD5 01d147e2e689bd3b8fe97760a4657e77

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