MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 40a02794b61fb32fcad4b270141967d6ed82253085ba80599c2e6559679d0a00. 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 5 File information Comments
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SHA256 hash: 40a02794b61fb32fcad4b270141967d6ed82253085ba80599c2e6559679d0a00
SHA3-384 hash: 56424303aa3c6ffe055136fdbe8fa4bd935a92fb922a278a7a7c77f131559132261a20e98cf5df41569adbcb73cfee01
SHA1 hash: c91389302e72e79f7576e56672aaeab8a2f72757
MD5 hash: 868b8b982545232be92e99fe384354dd
humanhash: iowa-hydrogen-nineteen-low
File name:RFQ3252025.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:778'752 bytes
First seen:2025-03-25 12:06:27 UTC
Last seen:2025-04-11 12:53:51 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'603 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:RQBR3DYnjEICB1i1RKPKqWalUUAJKYp9GTufAXRS6pXHlXZbHO9xoWqlAZT:AknjEICBE/aKJxlKYHGIkpXFXVHsxGl
Threatray 1 similar samples on MalwareBazaar
TLSH T1A1F4236EA7129B6ACE1D0B39C813611D84BAC563E463F3BA21D039F43E77B48D52BC41
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10522/11/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4504/4/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
dhash icon 14f0ccced6cce971 (11 x SnakeKeylogger, 9 x Formbook, 5 x MassLogger)
Reporter threatcat_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
5
# of downloads :
424
Origin country :
CH CH
Vendor Threat Intelligence
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67e29c80acb044ea849eb994
Tags:
virus micro msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated obfuscated packed packed packer_detected phishing
Link:
https://www.filescan.io/uploads/67e29c7ade7b23ce17219763/reports/21377856-58b4-4878-b574-f4712fcaa3a3/overview
Verdict:
Malicious
Labled as:
Genie.8DN.Generic
Link:
https://www.hybrid-analysis.com/sample/40a02794b61fb32fcad4b270141967d6ed82253085ba80599c2e6559679d0a00
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/ac8c3400-8044-4211-808c-2d53f0f1246c
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1647975
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus / Scanner detection for submitted sample
Found direct / indirect Syscall (likely to bypass EDR)
Initial sample is a PE file and has a suspicious name
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)
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 FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1647975 Sample: RFQ3252025.exe Startdate: 25/03/2025 Architecture: WINDOWS Score: 100 30 www.theamsterdamtouch.xyz 2->30 32 www.vitalh.life 2->32 34 9 other IPs or domains 2->34 44 Suricata IDS alerts for network traffic 2->44 46 Antivirus / Scanner detection for submitted sample 2->46 48 Multi AV Scanner detection for submitted file 2->48 52 5 other signatures 2->52 10 RFQ3252025.exe 3 2->10         started        signatures3 50 Performs DNS queries to domains with low reputation 30->50 process4 file5 28 C:\Users\user\AppData\...\RFQ3252025.exe.log, ASCII 10->28 dropped 13 RFQ3252025.exe 10->13         started        process6 signatures7 64 Maps a DLL or memory area into another process 13->64 16 RQEK0ZwxNxQkNe26Q2.exe 13->16 injected process8 signatures9 42 Found direct / indirect Syscall (likely to bypass EDR) 16->42 19 verclsid.exe 13 16->19         started        process10 signatures11 54 Tries to steal Mail credentials (via file / registry access) 19->54 56 Tries to harvest and steal browser information (history, passwords, etc) 19->56 58 Modifies the context of a thread in another process (thread injection) 19->58 60 3 other signatures 19->60 22 RQEK0ZwxNxQkNe26Q2.exe 19->22 injected 26 firefox.exe 19->26         started        process12 dnsIp13 36 www.cjokfbvd.net 104.166.89.204, 49713, 49714, 49715 QUICKPACKETUS United States 22->36 38 theamsterdamtouch.xyz 84.32.84.32, 49697, 80 NTT-LT-ASLT Lithuania 22->38 40 4 other IPs or domains 22->40 62 Found direct / indirect Syscall (likely to bypass EDR) 22->62 signatures14
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/40a02794b61fb32fcad4b270141967d6ed82253085ba80599c2e6559679d0a00
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/40a02794b61fb32fcad4b270141967d6ed82253085ba80599c2e6559679d0a00/
Threat name:
Win32.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2025-03-25 11:31:37 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
27 of 36 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=icqcpffwd6zs7swuwjybiglh23wyejjqqw5iawm4fzsvsz45biaa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
unc_loader_037
Create hunting rule
Similar samples:
40a02794b61fb32fcad4b270141967d6ed82253085ba80599c2e6559679d0a00
Formbook
error
Formbook
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery
Link:
https://tria.ge/reports/250325-pafvdsyrt7/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/0e4c8ac0-a487-4726-88f2-0d5f19ff86d8
Unpacked files
SH256 hash:
40a02794b61fb32fcad4b270141967d6ed82253085ba80599c2e6559679d0a00
MD5 hash:
868b8b982545232be92e99fe384354dd
SHA1 hash:
c91389302e72e79f7576e56672aaeab8a2f72757
Link:
https://www.unpac.me/results/2c22d215-4910-43a9-bde8-bf9ce31e8c56/
SH256 hash:
479b2b88236dc456b9c9dfcff8ee9e70c80d12c0f7b02b3090a9fe55f772b689
MD5 hash:
e3f6e491829c48e1ba0709f786109cef
SHA1 hash:
3e300dbb2a18a38cfcfdcdc2a71b47fada2b73a2
Link:
https://www.unpac.me/results/2c22d215-4910-43a9-bde8-bf9ce31e8c56/
SH256 hash:
00414fd58a3f5ad2686b9200ca74fbc897d4968916e9a7b314b07603a96907cf
MD5 hash:
79ffe41813961921c6770cff7bce3777
SHA1 hash:
e68a4cf1667f1259e2f7364629eaff341cc723e4
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/2c22d215-4910-43a9-bde8-bf9ce31e8c56/
SH256 hash:
0dafc3a393987877058abdd9a1cb754f1bf8a123e6b0375a4bbe0f09ba026166
MD5 hash:
fcaa4b23274a7c4a5e6d4fe3a5c6f77c
SHA1 hash:
ec9a75a8ff7bd96eb7579cb940c4956cf77125d0
Link:
https://www.unpac.me/results/2c22d215-4910-43a9-bde8-bf9ce31e8c56/
SH256 hash:
ed6c6baf7822740e8f182ba1faae2f609878b5687208d81bb64d75fe90a50f74
MD5 hash:
ec0c78c44b56cd7a448a1db2432a5f0f
SHA1 hash:
ded63e31986e52ca86fdbf3a574350ac82c1a50f
Link:
https://www.unpac.me/results/2c22d215-4910-43a9-bde8-bf9ce31e8c56/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/40a02794b61f/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/40a02794b61fb32fcad4b270141967d6ed82253085ba80599c2e6559679d0a00

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 40a02794b61fb32fcad4b270141967d6ed82253085ba80599c2e6559679d0a00

(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