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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b6d03e3f9c178c77eb32e730e8e690fa844ffd73f49a8fa0c6c37ea09956e299. 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: 18


Intelligence 18 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b6d03e3f9c178c77eb32e730e8e690fa844ffd73f49a8fa0c6c37ea09956e299
SHA3-384 hash: 4fc8f4f243c288dd22fd7f695dfe9253f17accf7820c7985e950720450807c1309fd6fd0a89bc3c9f687b5dc5648fb3e
SHA1 hash: 959700583d893a797c31a05a83338482ca9c2411
MD5 hash: 0ef11a7596e1ddcf5be57e0b52bacd11
humanhash: blossom-jig-alpha-kansas
File name:b6d03e3f9c178c77.bin
Download: download sample
Signature Formbook
Create hunting rule
File size:777'728 bytes
First seen:2026-10-23 00:23:54 UTC
Last seen:Never
File type:Executable exe
MIME type:application/vnd.microsoft.portable-executable
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'298 x AgentTesla, 20'717 x Formbook, 12'402 x SnakeKeylogger)
ssdeep 12288:rDrO5uarElvJ0ig/mWyiaWwMMPqzy+gsXViF0hlDhX+J88oi:PrYqJ0/nQMgqzyPoVphNhX+C8o
TLSH T157F402642369F602E9B65FF51A71E334A336AE8DE531D30B8EEA6CDF38257016D44342
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
Reporter Tuxxin
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
190
Origin country :
US US
Vendor Threat Intelligence
Malware configuration found for:
RoboSki
Details
Link:
https://research.acce.ciphertechsolutions.com/results/8ab0a469-0008-40be-893d-43d391fbd72e/
Malware family:
formbook
Create hunting rule
ID:
1
File name:
exe
Verdict:
Malicious activity
Analysis date:
2026-10-23 00:30:03 UTC
Tags:
formbook stealer
Link:
https://app.any.run/tasks/baa9c1c6-ce63-42ba-a0a2-5ea68a9d52f0

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/94192/
Detection(s):
SecuriteInfo.com.Trojan.PWS.Siggen5.36347.15338.18962.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6adaa9335a22ac805bd9bd22
Tags:
shell micro cupi
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Creating synchronization primitives
Creating a process with a hidden window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Blocking the Windows Defender launch
Adding an exclusion to Microsoft Defender
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade packed vbnet
Link:
https://www.filescan.io/uploads/6adaa934791eb5ea5382d197/reports/80566b55-e833-44f6-8e17-2bf7ba76045a/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/b6d03e3f9c178c77eb32e730e8e690fa844ffd73f49a8fa0c6c37ea09956e299
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-10-22T01:03:00Z UTC
Last seen:
2026-10-24T18:27:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/b6d03e3f9c178c77eb32e730e8e690fa844ffd73f49a8fa0c6c37ea09956e299/results?tab=lookup
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a267f1f0-ed9b-4724-95a5-be62275f7574
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1990800
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
Found direct / indirect Syscall (likely to bypass EDR)
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)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
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)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1990800 Sample: b6d03e3f9c178c77.bin.exe Startdate: 23/10/2026 Architecture: WINDOWS Score: 100 30 www.xearazin.shop 2->30 32 www.syntroxer.com 2->32 34 16 other IPs or domains 2->34 42 Suricata IDS alerts for network traffic 2->42 44 Antivirus detection for URL or domain 2->44 46 Multi AV Scanner detection for submitted file 2->46 48 7 other signatures 2->48 8 b6d03e3f9c178c77.bin.exe 4 2->8         started        12 sGgYcu2h.exe 2->12 injected signatures3 process4 dnsIp5 28 C:\Users\...\b6d03e3f9c178c77.bin.exe.log, ASCII 8->28 dropped 50 Adds a directory exclusion to Windows Defender 8->50 52 Unusual module load detection (module proxying) 8->52 54 Switches to a custom stack to bypass stack traces 8->54 15 b6d03e3f9c178c77.bin.exe 8->15         started        18 powershell.exe 23 8->18         started        36 www.jf-bitpie.cn 154.206.139.66, 49760, 80 OWGELS-AS-APOWGELSINTERNATIONALCOLIMITEDHK Hong Kong SAR China 12->36 38 www.xearazin.shop 69.6.212.94, 49766, 49767, 49768 ORACLE-BMC-31898-OracleCorporationUS Brazil 12->38 40 13 other IPs or domains 12->40 20 SndVol.exe 13 12->20         started        file6 signatures7 process8 signatures9 56 Maps a DLL or memory area into another process 15->56 58 Queues an APC in another process (thread injection) 15->58 60 Found direct / indirect Syscall (likely to bypass EDR) 15->60 22 WmiPrvSE.exe 18->22         started        24 conhost.exe 18->24         started        62 Tries to steal Mail credentials (via file / registry access) 20->62 64 Tries to harvest and steal browser information (history, passwords, etc) 20->64 66 Modifies the context of a thread in another process (thread injection) 20->66 68 2 other signatures 20->68 26 firefox.exe 20->26         started        process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b6d03e3f9c178c77eb32e730e8e690fa844ffd73f49a8fa0c6c37ea09956e299
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.44 Win 32 Exe x86
Link:
https://app.malva.re/file/0ef11a7596e1ddcf5be57e0b52bacd11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b6d03e3f9c178c77eb32e730e8e690fa844ffd73f49a8fa0c6c37ea09956e299/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2026-10-22 07:09:58 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
27 of 38 (71.05%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=w3id4p44c6ghp2zs44yorzuq7kce77lt6sni7iggyn7kbgkw4kmq._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery evasion execution rat spyware stealer trojan
Link:
https://tria.ge/reports/261023-ap51haa13n/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
SmartAssembly .NET packer
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Family: Formbook
Formbook payload
Modifies Windows Defender DisableAntiSpyware settings
Unpacked files
SH256 hash:
b6d03e3f9c178c77eb32e730e8e690fa844ffd73f49a8fa0c6c37ea09956e299
MD5 hash:
0ef11a7596e1ddcf5be57e0b52bacd11
SHA1 hash:
959700583d893a797c31a05a83338482ca9c2411
Link:
https://www.unpac.me/results/2bf394ab-e770-4523-98be-9ef60aa0dd83/
SH256 hash:
8ba5e5fc50d186d7224a0f4139c3139b3e7e88954ea6bd6a758790b82e032a5a
MD5 hash:
2c4c72512465ee78b0ad19d17ea2d155
SHA1 hash:
05495df5a63cb97b6bc65652f4bc9e95c29c0a37
Detections:
INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Link:
https://www.unpac.me/results/2bf394ab-e770-4523-98be-9ef60aa0dd83/
Parent samples :
aed64d1a94fe8182f45f84a8f7ba420b90b076c34c448e141d11be350bb728bf
dc50ab477a38a56cfcce2c3a630f309b4d39c555882845702ba5eb389fa53f8b
b2b362f2c0cf692201dcb08dc12f86ea80e94f30586569bff5647bafb232dce4
ea31e23771249925cec49d731598cf69a9edc2cb883e8941832ce47a8a897492
7e6854f052cb97be92d9e7e902af27dadf63a1d89d97df856c6433e15b35b08d
5431d9328694139eb052492c1f891aea28d6eee2ceab442501efde5b50a8e20a
455edd5f0c9fb584150689fe4134b72166210c982d6cdcc3945a8c398791ed81
7306389f13becd510de6c1a5cafc5012200394fd48d9735b55d421dbfc2ccf29
911b4fe6d1761eed5bc7ade69ac55b3c8f726cbd7e3d613ea34bd2bbf107e9c6
f8741d3a7a19561b0c04436efab2f43a07a5f38a04ddcc9f45b6019ac627d6e0
44a7cba81a611e798624ffab187b137725a5b7c0b80e53160f32839f01c7093f
e5126ba96da0decf071eaca32fc68fcf10048f70dd35398ad6e2a1fa773b26a2
a6a7b0729dfcdd824820293c31ac1c8f3bc2e384da986921f3d16594f10b1bdd
2a9eb929cf3a094c9f04346c20f63dce4c65bdc84d99cedd8952f279f497285b
5240b38a9efe67747c29da0026e03421942d4bb76d5619ed398e854480f6a076
81a490067ca061d838ba79ad02b4397acbdf1e90a85a371f66ab3cda13b844a3
de8e4550241c82dd8addc993db679e5eb9ec3080dfc74eaeaf0fbba20aefd73e
6ef0475a2947228b255910ecb1afbfb67d84422890530465af83dd8962b511ea
d49b5ed99cf590c2960fda247fff193c76c75f6cfae84c15b00562f1c6494837
a52cc2e5327e48910cccb0a723622ae520cd92a541f3a79ea6d0e526df46dfe6
7a024192fa8412e5dded4a28c9cc031870a9a1391d6b04e312d983c14180cd9d
450c84d19146aff4e5482bf9f263bed79ebcb2afcda896f2bcab0bda7848f81b
2545a93d9e794363f95aafcba44b1e791621e801ac887eecd44ed9b5f2273195
75fb29fab2cd9003d68c9ae9a7c8e223d7437497ce5e4ea094158bc4bba198ce
3f4b6451af04b1d6d2b34f017a9baa73671ab6f92aaa921ffaf1c799c6f3a794
477d6810f64e552158e073e1af947991e490cd5f4b774205bbd3287bdd359d79
b6d03e3f9c178c77eb32e730e8e690fa844ffd73f49a8fa0c6c37ea09956e299
21af7d776011760bce54d51cefe0416d26888701696ddff544a5f6a307980f43
291b8700ff0080732a7da994fc08fa6f5c420f562363e106f1137bae000ac22f
1e533b6f4417c95761a96e060e12eef541fa3dd9a8c5b3888b86e99666266399
12f520907b6193f628d959d05e22bc24032b7869ca805a1a8c331e0884202daf
a33f6a6d2098a2be88895b24bd929981ba301079c993af2ad0119e207ade7474
70af9e596e3852310c462130c8942b683ee9b5f3b3781d61a53e097e580e0a65
42042cbfb880a7312bf79970fa34f28d5efc05e78c59413dacf356c3f5f1334b
8f151b1483d17650fef6a0b07c95711a229d7b7cc5fe4e5c6c02c06bcd7b476b
3c217eeecaa616ad300b86fe00f2ddebeb05cba3dfb4c33f3c716f0f162c282c
1216a457ad6feba882414c1d842764b2ef56b281cc6d73248732a8b5f96cf37f
f813713233bd1beb4be5a65203b99b482c94b6305c4bda360bc1d356d1ce78fc
SH256 hash:
dddaeb3d5d4d21b8f5dd18671b73e30eb29582bb2bc595ae4dff5836024143c3
MD5 hash:
9e3d8b951cf92060d1790006bffee26c
SHA1 hash:
a41796ac85a4a2f612b2a00ea7caee2e8e90d23a
Link:
https://www.unpac.me/results/2bf394ab-e770-4523-98be-9ef60aa0dd83/
SH256 hash:
11c04cecd4a052cdd3d6e513bdef624368ca8958f23f2af9d4b735c3329221e3
MD5 hash:
89d913c3396d52642c863bd9ac1702ed
SHA1 hash:
7bf87725c554009200473e770d3ca3d007fdaea9
Link:
https://www.unpac.me/results/2bf394ab-e770-4523-98be-9ef60aa0dd83/
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/b6d03e3f9c178c77eb32e730e8e690fa844ffd73f49a8fa0c6c37ea09956e299

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:DotNet_RGB_Embedded_AssemblyLoader_Hunt
Create hunting rule
Author:ShadowOpCode
Description:Hunt .NET bitmap RGB extraction combined with embedded resources and assembly loading
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_Malware_XWorm_ForgeAuto_6b06c990_Extrait
Create hunting rule
Author:Marjoriefort
Description:Detects XWorm (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.

Web download

Formbook

Executable exe b6d03e3f9c178c77eb32e730e8e690fa844ffd73f49a8fa0c6c37ea09956e299

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3949347/
Cape
Cape
https://www.capesandbox.com/analysis/94192/

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