MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 58b21b1ecb14e234c09d14eb1a987f636f384ff0e1345bde2071bb87e90ae5d8. 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: 15


Intelligence 15 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 58b21b1ecb14e234c09d14eb1a987f636f384ff0e1345bde2071bb87e90ae5d8
SHA3-384 hash: 71197cd8aba8aecfcf531459cc6252b55e0083767e467d03a53aaf4cd16d486ab7e0fd15604235781a95b13363da67b2
SHA1 hash: dd0e1b5cd5b14488e1f28ad127d5cd5e484a5ba2
MD5 hash: cedbf1d5c1bc7d923f885cd24bf225c1
humanhash: undress-eighteen-red-princess
File name:Payment Advice - Advice RefA2dGOv46MCnu -USD Priority payment.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:734'208 bytes
First seen:2024-12-09 07:29:35 UTC
Last seen:2024-12-16 13:06:40 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'611 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:0PGgmhOG+VQMVk/25m5TLR/O5zZZOPG2HckSRd7LL0pJKFIA:Mj3VXC25QT9/O5zfOLk7LLBn
Threatray 17 similar samples on MalwareBazaar
TLSH T18CF412A96686D907C99557380BB2F1B916B90EDDF801D2039FDD7DEBFC76E190C88082
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
File icon (PE):PE icon
dhash icon 0000000000000000 (872 x AgentTesla, 496 x Formbook, 296 x RedLineStealer)
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
364
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Payment Advice - Advice RefA2dGOv46MCnu -USD Priority payment.exe
Verdict:
No threats detected
Analysis date:
2024-12-09 07:46:20 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/b295e35d-8f83-426d-944f-1b38d2b9c634

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.Pwsx-10038556-0
Create hunting rule

Win.Packed.Pwsx-10038557-0
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67569c93469da547b39781d6
Tags:
virus shell msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
infostealer masquerade packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/67569c8ae7f9d4e35fe37f98/reports/ab06919b-bd8e-463b-88b8-92fd0309a864/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/58b21b1ecb14e234c09d14eb1a987f636f384ff0e1345bde2071bb87e90ae5d8
Result
Verdict:
MALICIOUS
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4ba2eff4-72e4-4c0c-bad2-0acf331060c5
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1571277
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Found direct / indirect Syscall (likely to bypass EDR)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
Machine Learning detection for sample
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 submitted file
Queues an APC in another process (thread injection)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1571277 Sample: Payment Advice - Advice Ref... Startdate: 09/12/2024 Architecture: WINDOWS Score: 100 35 www.sssvip2.shop 2->35 37 www.hsa.world 2->37 39 10 other IPs or domains 2->39 47 Suricata IDS alerts for network traffic 2->47 49 Multi AV Scanner detection for submitted file 2->49 51 Yara detected FormBook 2->51 53 7 other signatures 2->53 10 Payment Advice - Advice RefA2dGOv46MCnu -USD  Priority payment.exe 4 2->10         started        signatures3 process4 file5 33 Payment Advice - A...ity payment.exe.log, ASCII 10->33 dropped 65 Adds a directory exclusion to Windows Defender 10->65 67 Injects a PE file into a foreign processes 10->67 14 Payment Advice - Advice RefA2dGOv46MCnu -USD  Priority payment.exe 10->14         started        17 powershell.exe 23 10->17         started        signatures6 process7 signatures8 71 Maps a DLL or memory area into another process 14->71 19 vTCmFjyxUmdTJX.exe 14->19 injected 73 Loading BitLocker PowerShell Module 17->73 22 conhost.exe 17->22         started        process9 signatures10 55 Found direct / indirect Syscall (likely to bypass EDR) 19->55 24 finger.exe 13 19->24         started        process11 signatures12 57 Tries to steal Mail credentials (via file / registry access) 24->57 59 Tries to harvest and steal browser information (history, passwords, etc) 24->59 61 Modifies the context of a thread in another process (thread injection) 24->61 63 3 other signatures 24->63 27 vTCmFjyxUmdTJX.exe 24->27 injected 31 firefox.exe 24->31         started        process13 dnsIp14 41 dutchdubliners.online 37.97.254.27, 49889, 49895, 49901 TRANSIP-ASAmsterdamtheNetherlandsNL Netherlands 27->41 43 www.allstary.top 199.193.6.134, 49928, 49934, 49941 NAMECHEAP-NETUS United States 27->43 45 6 other IPs or domains 27->45 69 Found direct / indirect Syscall (likely to bypass EDR) 27->69 signatures15
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/58b21b1ecb14e234c09d14eb1a987f636f384ff0e1345bde2071bb87e90ae5d8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/58b21b1ecb14e234c09d14eb1a987f636f384ff0e1345bde2071bb87e90ae5d8/
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2024-12-06 02:47:46 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
26 of 38 (68.42%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=lczbwhwlctrdjqe5ctvrvgd7mnxtqt7q4e2fxxraog5yp2ik4xma._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
unknown_loader_037
Create hunting rule
Similar samples:
51f793789b534af84e377bfa1d9686038108885b89f05e3966e34ec31027f4e4
Formbook
69257409468ac14c033e873eff7d59704b4981e93962ccd3d7c85fd7e2c7c088
Formbook
c8135636799971efa2fe543c693f96ab2238d38b140d1da6a07727231161a765
Formbook
d2409d7db0c9a560886eeb399501c90314efe0568859cb21c460fcdc92b2e160
Formbook
error
Formbook
+ 7 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery execution
Link:
https://tria.ge/reports/241209-jbtvrazrht/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Verdict:
Malicious
Tags:
Win.Packed.Pwsx-10038556-0
YARA:
n/a
Link:
https://app.threat.zone/submission/0707f8dc-31d7-4e84-adfe-9aa35c89f819
Unpacked files
SH256 hash:
2b4cd14223217cdf4a473aafbce1f97280f1c850e5e896bd3229eecec980b481
MD5 hash:
05d518851a6f46cfbe4d3c04dfec6c76
SHA1 hash:
a69b3d0375be81cbfc48b5ad97d6a54c49fac994
Link:
https://www.unpac.me/results/1dc633f5-d901-4495-8373-f087c22883cf/
SH256 hash:
22e7d977a2cc42d6aadda9d24304b41ef0ce962256afc2f58ccd149a32416417
MD5 hash:
12c63aefe64bed87e7b6fa26762d23c6
SHA1 hash:
97461c57b0f1a0edbd320531ebadbd774597c887
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/1dc633f5-d901-4495-8373-f087c22883cf/
SH256 hash:
b46a34cb56ad81dc8605488928115fc58a46eb9e21bdd94af8dde4fdbbd62b5f
MD5 hash:
a7693c56455b201088fd7a02c2199080
SHA1 hash:
3ec63336f30f3d8438f7cbf5c2bb4f8dba2608c8
Link:
https://www.unpac.me/results/1dc633f5-d901-4495-8373-f087c22883cf/
SH256 hash:
acf09c80699691d3a6a8d52577d06a7054c1bda1953a55527251e92e15ba037f
MD5 hash:
69473b5123488cff4aae599aa14eb3a4
SHA1 hash:
1d3562fd2fb55582cb97441b9f01065dd80373fc
Link:
https://www.unpac.me/results/1dc633f5-d901-4495-8373-f087c22883cf/
SH256 hash:
58b21b1ecb14e234c09d14eb1a987f636f384ff0e1345bde2071bb87e90ae5d8
MD5 hash:
cedbf1d5c1bc7d923f885cd24bf225c1
SHA1 hash:
dd0e1b5cd5b14488e1f28ad127d5cd5e484a5ba2
Link:
https://www.unpac.me/results/1dc633f5-d901-4495-8373-f087c22883cf/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/58b21b1ecb14/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/58b21b1ecb14e234c09d14eb1a987f636f384ff0e1345bde2071bb87e90ae5d8

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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

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

Malspam

Formbook

Executable exe 58b21b1ecb14e234c09d14eb1a987f636f384ff0e1345bde2071bb87e90ae5d8

(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