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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a21be069523269d370e173e5560617c4960e9cabfa03de22bd8fcae2c08e9e40. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a21be069523269d370e173e5560617c4960e9cabfa03de22bd8fcae2c08e9e40
SHA3-384 hash: dfc8bc888eceb32546d8a6e615eedff0ccd18f4e882bda7e988260654421e78c50f05744dfd94d9679c1b80281f9a088
SHA1 hash: 0a4e8d9fc411dd3996778e1b2358e8695667a55e
MD5 hash: a31b3261aa04f232b7fcfc77777c43a7
humanhash: vegan-mars-oxygen-mike
File name:Request for Quotation #26050236.scr
Download: download sample
Signature Formbook
Create hunting rule
File size:1'162'752 bytes
First seen:2026-10-07 06:36:25 UTC
Last seen:2026-10-19 06:47:50 UTC
File type:Executable exe
MIME type:application/vnd.microsoft.portable-executable
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'287 x AgentTesla, 20'689 x Formbook, 12'401 x SnakeKeylogger)
ssdeep 24576:+H1wBDbhBDbmoEmO2789Tju4/hi0pEzPcikCaJ0:5dhdm3N2g1rZaPgG
TLSH T1A235E0A4327DDF02C47A6BF80661C6B447F45E4A213AC3029DE66DDBBD24F851D0AB93
TrID 73.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
6.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.6% (.EXE) Win64 Executable (generic) (6522/11/2)
4.5% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
dhash icon a4a0e83adec2f1d0 (2 x Formbook, 2 x XWorm, 1 x AgentTesla)
Reporter threatcat_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
234
Origin country :
CH CH
Vendor Threat Intelligence
Malware configuration found for:
RoboSki
Details
Link:
https://research.acce.ciphertechsolutions.com/results/a5684327-76e5-4860-8c37-e07b65386364/
Malware family:
n/a
ID:
1
File name:
exe
Verdict:
No threats detected
Analysis date:
2026-10-07 06:43:46 UTC
Tags:
netreactor
Link:
https://app.any.run/tasks/33761095-b81f-44d7-bac5-74500697931a

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/90934/
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.52739659.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6ad029616f551121ba15a2a6
Tags:
virus micro msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file
Сreating synchronization primitives
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade obfuscated packed
Link:
https://www.filescan.io/uploads/6ac5e8a0391680edb6739e60/reports/fdab0ee7-9987-4bb2-9731-763e367a1ed9/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/a21be069523269d370e173e5560617c4960e9cabfa03de22bd8fcae2c08e9e40
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-10-07T03:05:00Z UTC
Last seen:
2026-10-09T03:04:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/a21be069523269d370e173e5560617c4960e9cabfa03de22bd8fcae2c08e9e40/results?tab=lookup
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/05221a0f-ae43-4e3c-9897-960e5ffdafce
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1983372
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Allocates memory in foreign processes
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
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
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)
Unusual module load detection (module proxying)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1983372 Sample: Request for Quotation #2605... Startdate: 07/10/2026 Architecture: WINDOWS Score: 100 28 www.airoya.pp.ua 2->28 30 pki-goog.l.google.com 2->30 32 3 other IPs or domains 2->32 52 Suricata IDS alerts for network traffic 2->52 54 Antivirus / Scanner detection for submitted sample 2->54 56 Multi AV Scanner detection for submitted file 2->56 58 7 other signatures 2->58 8 Request for Quotation #26050236.scr.exe 3 2->8         started        12 MO1gmduVm5P.exe 2->12 injected 14 JX53X3dn.exe 2->14 injected signatures3 process4 dnsIp5 26 Request for Quotat...6050236.scr.exe.log, ASCII 8->26 dropped 60 Writes to foreign memory regions 8->60 62 Allocates memory in foreign processes 8->62 64 Injects a PE file into a foreign processes 8->64 17 MSBuild.exe 8->17         started        20 MSBuild.exe 8->20         started        22 rasdial.exe 13 12->22         started        34 www.airoya.pp.ua 172.67.171.96, 49714, 80 CLOUDFLARENET-CloudflareIncUS Canada 14->34 file6 signatures7 process8 signatures9 36 Maps a DLL or memory area into another process 17->36 38 Queues an APC in another process (thread injection) 17->38 40 Found direct / indirect Syscall (likely to bypass EDR) 17->40 42 Unusual module load detection (module proxying) 20->42 44 Switches to a custom stack to bypass stack traces 20->44 46 Tries to steal Mail credentials (via file / registry access) 22->46 48 Tries to harvest and steal browser information (history, passwords, etc) 22->48 50 Modifies the context of a thread in another process (thread injection) 22->50 24 firefox.exe 22->24         started        process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a21be069523269d370e173e5560617c4960e9cabfa03de22bd8fcae2c08e9e40
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.39 Win 32 Exe x86
Link:
https://app.malva.re/file/a31b3261aa04f232b7fcfc77777c43a7
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a21be069523269d370e173e5560617c4960e9cabfa03de22bd8fcae2c08e9e40/
Threat name:
ByteCode-MSIL.Trojan.Taskun
Create hunting rule
Status:
Suspicious
First seen:
2026-10-07 06:37:18 UTC
File Type:
PE (.Net Exe)
Extracted files:
54
AV detection:
23 of 38 (60.53%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uin6a2ksgju5g4hbopsvmbqxysla5hfl7ib54iv5r7fofqeotzaa._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/261007-hdlfqac12s/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Family: Formbook
Formbook payload
Unpacked files
SH256 hash:
a21be069523269d370e173e5560617c4960e9cabfa03de22bd8fcae2c08e9e40
MD5 hash:
a31b3261aa04f232b7fcfc77777c43a7
SHA1 hash:
0a4e8d9fc411dd3996778e1b2358e8695667a55e
Link:
https://www.unpac.me/results/209634f6-54da-4390-abd8-9857065a3ee1/
SH256 hash:
d4b398de0a87c2c75b007d5d37531502475c183374db0fa2a387e7fbc7232956
MD5 hash:
8c15c33ea3193cbab05f24141e65d924
SHA1 hash:
748e6ecdc1e5cfbc114d62b76322710aec927954
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/209634f6-54da-4390-abd8-9857065a3ee1/
Parent samples :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 hash:
855c0911f560239ea955751e01b10ef396bb80f40d2121fe0059785f0338406d
MD5 hash:
dc5599e1795adf039d908c4ecb0142f9
SHA1 hash:
ff0b9d86aea2a13a4cb38a152a18b8e687aba1cd
Link:
https://www.unpac.me/results/209634f6-54da-4390-abd8-9857065a3ee1/
SH256 hash:
2738310e34721cf95769c26b06faac8bcc661d1a7f13c2df5c0dd1cbcd09cdfc
MD5 hash:
bec5a2dfb70a26ea27429f9d2386d58e
SHA1 hash:
4d8c4ba2ed96e35b6ecd5db624e437c916915ed3
Link:
https://www.unpac.me/results/209634f6-54da-4390-abd8-9857065a3ee1/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.87
Link:
https://yomi.yoroi.company/submissions/a21be069523269d370e173e5560617c4960e9cabfa03de22bd8fcae2c08e9e40

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:HUNT_NET_Loader_ImagePixel_To_AssemblyLoad
Create hunting rule
Author:Anish Bogati
Description:Hunting: .NET loader that reads pixel data from an embedded image, loads it as a .NET assembly, and runs it via reflection or late binding. Catches bitmap-steganography loaders.
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:WIN_Malware_Derialock_ForgeAuto_3127f957_Extrait
Create hunting rule
Author:Marjoriefort
Description:Detects Derialock (pe, etat extrait)
Rule name:WIN_Sample_Unique_69354b41
Create hunting rule
Author:Marjoriefort
Description:Specimen unique (soumission Bazaar) - strings distinctifs propres au sample
Reference:69354b41e10daf03d3f3af881b32d5c0fec56b1cfe96629fd4c5263413a42854.exe

File information

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

Malspam

Formbook

Executable exe a21be069523269d370e173e5560617c4960e9cabfa03de22bd8fcae2c08e9e40

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/90934/

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