MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f54d38c602d64dc36e00201f688132f39ef2b4cd94a1511cad05c2fd8ded6475. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f54d38c602d64dc36e00201f688132f39ef2b4cd94a1511cad05c2fd8ded6475
SHA3-384 hash: e65828fe6aa71911e23354f30e4a1479338718755bafaf447d9f7be173fc87825b69d04d9e34c766fb7324fe118db8fd
SHA1 hash: ca0f40f88f1481e7ae5c77c2b7e531f312f01b64
MD5 hash: 680c2dbfe5fdc39983fb674adf038ad9
humanhash: burger-lima-july-undress
File name:RFQ 402.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:778'752 bytes
First seen:2025-02-28 15:58:37 UTC
Last seen:2025-03-02 13:38:20 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:cJnwWVG0Nn9RRcT/jsXDJEsDIhUb5sAf4Qwbotgxujc58auotLm6Lw6r1CgYzRzl:yVGsRRcTozDUUbKAf4QwbotgY45hz5mJ
TLSH T16EF4016D1909FD13CAA943750AB6F27817B90DDAB502E3835FC9BDFBB666F102904183
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 :
3
# of downloads :
559
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
RFQ 402.exe
Verdict:
No threats detected
Analysis date:
2025-02-28 15:59:23 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/730e3e6e-bbdc-49d6-b147-6a38a8c009f1

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.Agen-10026311-0
Create hunting rule

Verdict:
Clean
Score:
89.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67c1de352dfba428b46f2d8e
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/f54d38c602d64dc36e00201f688132f39ef2b4cd94a1511cad05c2fd8ded6475
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/3c97f417-4936-40f9-a8e6-cd39d4df6dfc
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1626602
Signature
.NET source code contains potential unpacker
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)
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: 1626602 Sample: RFQ 402.exe Startdate: 28/02/2025 Architecture: WINDOWS Score: 100 31 www.persembunyian.xyz 2->31 33 www.seekmeme.xyz 2->33 35 3 other IPs or domains 2->35 41 Suricata IDS alerts for network traffic 2->41 43 Antivirus detection for URL or domain 2->43 45 Multi AV Scanner detection for submitted file 2->45 49 5 other signatures 2->49 10 RFQ 402.exe 3 2->10         started        signatures3 47 Performs DNS queries to domains with low reputation 33->47 process4 file5 29 C:\Users\user\AppData\...\RFQ 402.exe.log, ASCII 10->29 dropped 61 Injects a PE file into a foreign processes 10->61 14 RFQ 402.exe 10->14         started        signatures6 process7 signatures8 63 Maps a DLL or memory area into another process 14->63 17 RBeClKa1m.exe 14->17 injected process9 signatures10 39 Found direct / indirect Syscall (likely to bypass EDR) 17->39 20 dxdiag.exe 13 17->20         started        process11 signatures12 51 Tries to steal Mail credentials (via file / registry access) 20->51 53 Tries to harvest and steal browser information (history, passwords, etc) 20->53 55 Modifies the context of a thread in another process (thread injection) 20->55 57 3 other signatures 20->57 23 RBeClKa1m.exe 20->23 injected 27 firefox.exe 20->27         started        process13 dnsIp14 37 www.myfort.xyz 13.248.169.48, 49833, 49932, 49948 AMAZON-02US United States 23->37 59 Found direct / indirect Syscall (likely to bypass EDR) 23->59 signatures15
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f54d38c602d64dc36e00201f688132f39ef2b4cd94a1511cad05c2fd8ded6475
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f54d38c602d64dc36e00201f688132f39ef2b4cd94a1511cad05c2fd8ded6475/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2025-02-28 10:31:45 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
30 of 38 (78.95%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6vgtrrqc2zg4g3qaeapwrajs6oppfngnssqvchfnaxbp3dpnmr2q._file
Verdict:
malicious
Label(s):
unknown_loader_037
Create hunting rule
formbook
Create hunting rule
Similar samples:
error
Formbook
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery
Link:
https://tria.ge/reports/250228-te4jgaskt2/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Verdict:
Malicious
Tags:
Win.Packed.Agen-10026311-0
YARA:
n/a
Link:
https://app.threat.zone/submission/e7a7a74c-f039-4b33-ba5a-f1ae7f0fdbd8
Unpacked files
SH256 hash:
094a2002272a6a5c1a719550f4ce12f25f397689796f090ad26991cf60698c46
MD5 hash:
a92790e0ffd6d83c3e036197e9eb7092
SHA1 hash:
192c8ab285101b240de22931e4fc96907f134c99
Link:
https://www.unpac.me/results/65081aa6-6e42-423a-878e-eb751b3e5614/
SH256 hash:
b60ec10bf3b2f53347bff941d29c69c045cf378e4f0a6f365a269f6be193134c
MD5 hash:
cf49046fbdfe82f5f2c9629a96fc3309
SHA1 hash:
3e84bde5fa3df10aaaf5a9f0b808cf07ae5e1f96
Link:
https://www.unpac.me/results/65081aa6-6e42-423a-878e-eb751b3e5614/
SH256 hash:
6c3a2d3d75dea2a3fadf2663123ffe410b7b1b30f88388722cf7846fec2fa370
MD5 hash:
07da4350eed479121aec73b723c4b95e
SHA1 hash:
dcc317024a5a548c63c774c5de635b50ab280e69
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/65081aa6-6e42-423a-878e-eb751b3e5614/
SH256 hash:
4493757988a1bfddb58ac3ab06a03c92dbbce47ce8aa56065bfb31790e4704a0
MD5 hash:
f84deec549e05431b69a9b882183fa28
SHA1 hash:
a88f4d414f8a7ec34946873f472a966ce6a830fd
Link:
https://www.unpac.me/results/65081aa6-6e42-423a-878e-eb751b3e5614/
SH256 hash:
f54d38c602d64dc36e00201f688132f39ef2b4cd94a1511cad05c2fd8ded6475
MD5 hash:
680c2dbfe5fdc39983fb674adf038ad9
SHA1 hash:
ca0f40f88f1481e7ae5c77c2b7e531f312f01b64
Link:
https://www.unpac.me/results/65081aa6-6e42-423a-878e-eb751b3e5614/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f54d38c602d6/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/f54d38c602d64dc36e00201f688132f39ef2b4cd94a1511cad05c2fd8ded6475

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 f54d38c602d64dc36e00201f688132f39ef2b4cd94a1511cad05c2fd8ded6475

(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 (GUARD_CF)high

Comments