MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d83c9785a04050b32fb3777a3f25badc503d4a241cf735cf4f996d8a54c8ad39. 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: d83c9785a04050b32fb3777a3f25badc503d4a241cf735cf4f996d8a54c8ad39
SHA3-384 hash: 339925510d863b584f6b9024d724c7a6cb3ea8892eff845eb058dbd7723756440eeffc08a99a15e8bf5f493ea9d54a94
SHA1 hash: ab02a86279f23c07a05a9a8109d361114f9773ce
MD5 hash: 8f1c729d7b740faba721d3ec04d0a5fd
humanhash: william-victor-batman-echo
File name:QUOTATION NO REQ-19-000640.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:863'744 bytes
First seen:2025-02-13 12:14:21 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'662 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:QbvHzeK6LvCBuAfXKpxYTz5dLGIR9Ovu:4aK6LEbXCYxUIf
Threatray 139 similar samples on MalwareBazaar
TLSH T1A905F1C83B27D71ACE596A309935DDB853F81D98B001BAF25FC93B5BB9AC211990CF41
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
Reporter threatcat_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
596
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
QUOTATION NO REQ-19-000640.exe
Verdict:
No threats detected
Analysis date:
2025-02-13 12:22:02 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/2d323d88-ed6f-4e9a-827d-eb5abd205336

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.DownLoaderNET.710.29146.32325.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
81.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67ade25b28ab76d43a5ac0bd
Tags:
agenttesla obfusc virus msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Launching a process
Creating a file
Forced shutdown of a system process
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated obfuscated packed packed packer_detected
Link:
https://www.filescan.io/uploads/67ade257c2f1c1c7a0593d7c/reports/67e51f37-0f29-438e-90f1-be3ad095968f/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/d83c9785a04050b32fb3777a3f25badc503d4a241cf735cf4f996d8a54c8ad39
Result
Verdict:
SUSPICIOUS
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:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/79d3e523-d267-48ee-ac39-2dbc3bbb12e3
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1614224
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Antivirus detection for URL or domain
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
Joe Sandbox ML detected suspicious 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
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
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)
Windows Update Standalone Installer command line found (may be used to bypass UAC)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1614224 Sample: QUOTATION NO REQ-19-000640.exe Startdate: 13/02/2025 Architecture: WINDOWS Score: 100 33 www.031235066.xyz 2->33 35 031235066.xyz 2->35 37 7 other IPs or domains 2->37 49 Antivirus detection for URL or domain 2->49 51 Multi AV Scanner detection for submitted file 2->51 53 Yara detected FormBook 2->53 57 3 other signatures 2->57 10 QUOTATION NO REQ-19-000640.exe 3 2->10         started        signatures3 55 Performs DNS queries to domains with low reputation 33->55 process4 file5 31 C:\...\QUOTATION NO REQ-19-000640.exe.log, ASCII 10->31 dropped 69 Writes to foreign memory regions 10->69 71 Allocates memory in foreign processes 10->71 73 Injects a PE file into a foreign processes 10->73 14 RegSvcs.exe 10->14         started        signatures6 process7 signatures8 75 Maps a DLL or memory area into another process 14->75 17 KrnVeSH4a.exe 14->17 injected process9 signatures10 45 Windows Update Standalone Installer command line found (may be used to bypass UAC) 17->45 47 Found direct / indirect Syscall (likely to bypass EDR) 17->47 20 SearchIndexer.exe 13 17->20         started        23 wusa.exe 17->23         started        process11 signatures12 59 Tries to steal Mail credentials (via file / registry access) 20->59 61 Tries to harvest and steal browser information (history, passwords, etc) 20->61 63 Modifies the context of a thread in another process (thread injection) 20->63 65 3 other signatures 20->65 25 KrnVeSH4a.exe 20->25 injected 29 firefox.exe 20->29         started        process13 dnsIp14 39 www.kpilal.info 47.83.1.90, 50826, 50840, 50858 VODANETInternationalIP-BackboneofVodafoneDE United States 25->39 41 www.liveseam.live 162.0.231.203, 50976, 50977, 50978 NAMECHEAP-NETUS Canada 25->41 43 3 other IPs or domains 25->43 67 Found direct / indirect Syscall (likely to bypass EDR) 25->67 signatures15
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/d83c9785a04050b32fb3777a3f25badc503d4a241cf735cf4f996d8a54c8ad39
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d83c9785a04050b32fb3777a3f25badc503d4a241cf735cf4f996d8a54c8ad39/
Threat name:
Win32.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2025-02-13 06:40:30 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3a6jpbnaibilgl5to55d6jn23rid2sredt3tlt2ptfwyuvgivu4q._file
Verdict:
malicious
Label(s):
unknown_loader_037
Create hunting rule
formbook
Create hunting rule
Similar samples:
1fa0169ab531ace73ff03fd6b6ebb8ee750a56e11b8244cacfa98f1161a9d739
Formbook
6026ecb76ab5ce576f4d602791bd5a6c6aab28a53b7159ebd46fa5a2117dc58a
Formbook
a140ed9be69aa6587432c8e9ae4365048198ec26fd60397465573acdb2174752
Formbook
a4a5eaa6403f9d7d5a3541302a96e9514bc2404886ccfdfb9ea2e6e28e8800ce
Formbook
b52af535314ad644199d9804d08e7f8eea3cdbca51c06281241a3ac58365835a
Formbook
c4d0c442d70935c8c73111c674c307a69604914b404438927ad464169a715efd
Formbook
dd6f942761571832b1fb1175983c8dab4c8a15f90654baba635e9b739a8e8454
Formbook
error
Formbook
+ 129 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery
Link:
https://tria.ge/reports/250213-pe287axncl/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection Discovery
Suspicious use of SetThreadContext
Downloads MZ/PE file
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/236a5709-1856-4dfd-90e2-576b60f244f2
Unpacked files
SH256 hash:
d83c9785a04050b32fb3777a3f25badc503d4a241cf735cf4f996d8a54c8ad39
MD5 hash:
8f1c729d7b740faba721d3ec04d0a5fd
SHA1 hash:
ab02a86279f23c07a05a9a8109d361114f9773ce
Link:
https://www.unpac.me/results/2581bef4-39ed-4948-8f67-ca5e2017d6d1/
SH256 hash:
d60d190916506fc62ff71c57db7fce1c18d02840903a353ed69d0da99f14fdd2
MD5 hash:
84ab1b60cfd85f12f7268274b452f0fe
SHA1 hash:
27239933d380371644eff9542575bbdddfe394d4
Link:
https://www.unpac.me/results/2581bef4-39ed-4948-8f67-ca5e2017d6d1/
SH256 hash:
12772b70f788052d0ed5ec565e8c429904f19c5f2e949bf2607ed99f7a8e0ee3
MD5 hash:
aa367f65489f533fbd13af26efd0ad9c
SHA1 hash:
cb74d4a31b0f68df205d188f3f4194bdb7833888
Link:
https://www.unpac.me/results/2581bef4-39ed-4948-8f67-ca5e2017d6d1/
SH256 hash:
c4bf0eb7983fc966e5f9579f6e562244c48570eff9aca0ad104d5c876675cfda
MD5 hash:
48abc59c34f7227783a83e2b5fade505
SHA1 hash:
f0e93855e31fe5c9ceb7a4de18b906e8b773c8e1
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/2581bef4-39ed-4948-8f67-ca5e2017d6d1/
SH256 hash:
10996d03c06ae165b8cc935e314f6ad78d510f20d8c44c64e0e84aba5e210df7
MD5 hash:
30e1baba801660d68450e1c546921184
SHA1 hash:
65e9ae9f8fa94842c156579483d56031ea5dddbb
Link:
https://www.unpac.me/results/2581bef4-39ed-4948-8f67-ca5e2017d6d1/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/d83c9785a040/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/d83c9785a04050b32fb3777a3f25badc503d4a241cf735cf4f996d8a54c8ad39

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:pe_imphash
Create hunting rule
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
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 d83c9785a04050b32fb3777a3f25badc503d4a241cf735cf4f996d8a54c8ad39

(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