MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 212151a618e9234e1c746f364ae9f98f12a2198c0ac9c4b3058d056541163240. 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: 22


Intelligence 22 IOCs YARA 5 File information Comments
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SHA256 hash: 212151a618e9234e1c746f364ae9f98f12a2198c0ac9c4b3058d056541163240
SHA3-384 hash: aec95cd83bbc6f8e14772f00cd1807252609fbfd69c16a1ac822af7214ee6ba2969ab748511c37fa2df0359668abdec9
SHA1 hash: c983ab854d9a04fd6ad8085e58594bb25ce92b67
MD5 hash: a76a602e8700013fc706b0d2bd72a57a
humanhash: johnny-two-monkey-sodium
File name:RFQ-CD-08-2025_pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:610'304 bytes
First seen:2025-09-01 22:56:50 UTC
Last seen:Never
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:ISr1iu8ZK42jPKRiNi2UddJmlIAIRWBvkiomw5PZP5dC0OWk:IqzOJmuAIRUvZ5wHPza
TLSH T1A9D41294260BCD13D1F257B16CA1D3B267AC2FADA811C3179EDAEDD7B426B407C81682
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 :
86
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
RFQ-CD-08-2025_pdf.exe
Verdict:
Malicious activity
Analysis date:
2025-09-01 22:58:22 UTC
Tags:
netreactor formbook stealer xloader
Link:
https://app.any.run/tasks/ee7ea07f-f89f-4f90-80a5-1bf9bd2bb306

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/24620/
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68b624e53e988eb6ab839041
Tags:
agenttesla underscore
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 bitmap masquerade obfuscated packed packed reconnaissance roboski stego vbnet
Link:
https://www.filescan.io/uploads/68b624df1c81c34281dadae1/reports/5e4cade8-df8a-48f0-9aa9-1adbc9ef7b85/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/212151a618e9234e1c746f364ae9f98f12a2198c0ac9c4b3058d056541163240
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-09-01T00:00:00Z UTC
Last seen:
2025-09-01T00:00:00Z UTC
Hits:
~1000
Detections:
Trojan.MSIL.Taskun.sb PDM:Trojan.Win32.Generic Trojan.Win32.SpeedBit.sb Trojan-Dropper.Win32.Injector.sb HEUR:Trojan-Spy.MSIL.Noon.gen Trojan.Win32.Agent.sb Trojan.MSIL.Agent.sb HEUR:Trojan.MSIL.Injector.gen Backdoor.Win32.Blakken.sb Trojan-Spy.Win32.Noon.sb Trojan.MSIL.Inject.sb Trojan.MSIL.Crypt.sb
Link:
https://opentip.kaspersky.com/212151a618e9234e1c746f364ae9f98f12a2198c0ac9c4b3058d056541163240/results?tab=lookup
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c2952640-dae5-49cc-876a-b56120eb82c8
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1769138
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Found malware configuration
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
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Switches to a custom stack to bypass stack traces
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1769138 Sample: RFQ-CD-08-2025_pdf.exe Startdate: 02/09/2025 Architecture: WINDOWS Score: 100 31 www.s667788.xyz 2->31 33 www.ian485.xyz 2->33 35 9 other IPs or domains 2->35 37 Found malware configuration 2->37 39 Malicious sample detected (through community Yara rule) 2->39 41 Multi AV Scanner detection for submitted file 2->41 45 8 other signatures 2->45 11 RFQ-CD-08-2025_pdf.exe 3 2->11         started        signatures3 43 Performs DNS queries to domains with low reputation 33->43 process4 file5 29 C:\Users\user\...\RFQ-CD-08-2025_pdf.exe.log, ASCII 11->29 dropped 55 Tries to detect virtualization through RDTSC time measurements 11->55 57 Injects a PE file into a foreign processes 11->57 59 Switches to a custom stack to bypass stack traces 11->59 15 RFQ-CD-08-2025_pdf.exe 11->15         started        18 RFQ-CD-08-2025_pdf.exe 11->18         started        signatures6 process7 signatures8 61 Modifies the context of a thread in another process (thread injection) 15->61 63 Maps a DLL or memory area into another process 15->63 65 Sample uses process hollowing technique 15->65 67 Queues an APC in another process (thread injection) 15->67 20 explorer.exe 98 7 15->20 injected process9 process10 22 explorer.exe 20->22         started        signatures11 47 Modifies the context of a thread in another process (thread injection) 22->47 49 Maps a DLL or memory area into another process 22->49 51 Tries to detect virtualization through RDTSC time measurements 22->51 53 Switches to a custom stack to bypass stack traces 22->53 25 cmd.exe 1 22->25         started        process12 process13 27 conhost.exe 25->27         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/212151a618e9234e1c746f364ae9f98f12a2198c0ac9c4b3058d056541163240
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.41 Win 32 Exe x86
Link:
https://app.malva.re/file/a76a602e8700013fc706b0d2bd72a57a
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/212151a618e9234e1c746f364ae9f98f12a2198c0ac9c4b3058d056541163240/
Verdict:
Malicious
Threat:
Family.FORMBOOK
Link:
https://tip.neiki.dev/file/212151a618e9234e1c746f364ae9f98f12a2198c0ac9c4b3058d056541163240
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2025-09-01 02:59:18 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
28 of 38 (73.68%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=eeqvdjqy5eru4hdun43ev2pzr4jkegmmble4jmyfrucwkqiwgjaa._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
formbook
Create hunting rule
Similar samples:
error
Formbook
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:fa27 discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/250901-2xextshp9t/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Formbook payload
Formbook
Formbook family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/8d03bb98-3e13-45ac-aa58-a8264c408fdf
Unpacked files
SH256 hash:
212151a618e9234e1c746f364ae9f98f12a2198c0ac9c4b3058d056541163240
MD5 hash:
a76a602e8700013fc706b0d2bd72a57a
SHA1 hash:
c983ab854d9a04fd6ad8085e58594bb25ce92b67
Link:
https://www.unpac.me/results/ac764ad3-3743-449e-89b8-88d3f8a8ba7a/
SH256 hash:
97f1eabec5b1e1dd5e3772303ecf9d0fa8861663b5c5eb36d21dda2296922ff2
MD5 hash:
23ab07d7c5374d84166168d5e3acd3a1
SHA1 hash:
2ae165f7c281be511cc43132db2b2b14b168ea7b
Link:
https://www.unpac.me/results/ac764ad3-3743-449e-89b8-88d3f8a8ba7a/
SH256 hash:
c0e4051965d9c9a2e1fb62eb00aeff571c025d1becdde531d02db886cf472518
MD5 hash:
68899f3a7756e433bf8a67c88f9782d9
SHA1 hash:
48353b519656e90c9a2b22ebe3da90107f429ae8
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/ac764ad3-3743-449e-89b8-88d3f8a8ba7a/
SH256 hash:
229354a837745aab79c01f7c3c35f0596a637a8e53e5b42903742fb8a937706b
MD5 hash:
0c9a941bfd588e8e56a9230691d9e3b3
SHA1 hash:
bad91e41b88a43ebfe62208fc6d2555a7ff972df
Detections:
win_formbook_w0
Create hunting rule
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
FormBook
Create hunting rule
Windows_Trojan_Formbook
Create hunting rule
Formbook
Create hunting rule
Link:
https://www.unpac.me/results/ac764ad3-3743-449e-89b8-88d3f8a8ba7a/
Parent samples :
212151a618e9234e1c746f364ae9f98f12a2198c0ac9c4b3058d056541163240
94976e161177276c6c1f03697f87bbbda781fedb937342a311728f51a3bce501
64b46245757a9181c081dfd7d31c504f3d74659d1c72bb01a21697032ab1b702
4f897b135d89fd4fae9653b4ee0e7ac959c478cc12734ec5fe887d6ac92680cc
c2f65520679a99af012fb9ba6d2eab1beb9af9de7d5acc28aa34c80f1b49c736
1f9e0b93f46f8d3a082b8504b723df366b34fe38c093dbf910660a259ee1761d
Malware family:
zgRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/212151a618e9/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/212151a618e9234e1c746f364ae9f98f12a2198c0ac9c4b3058d056541163240

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:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
Rule name:NET
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 212151a618e9234e1c746f364ae9f98f12a2198c0ac9c4b3058d056541163240

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/24620/

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