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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ae8a1e6cd66929b78a7f4b98911d04650346cefc046eb60f2bfc85eba95686f5. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ae8a1e6cd66929b78a7f4b98911d04650346cefc046eb60f2bfc85eba95686f5
SHA3-384 hash: 275d300c08e89209535c4bca317980f46785c7b09c80545af96cc58f7cb308a8cdfe08d537fff5bbc3695b49b34f33fb
SHA1 hash: e94464c2c8cd298ab5288de6206f0cd2f9482b90
MD5 hash: e3588eea4c91251891eb52ce99489c16
humanhash: lemon-snake-one-double
File name:adcb.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'122'304 bytes
First seen:2026-09-01 06:19:37 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'202 x AgentTesla, 20'373 x Formbook, 12'365 x SnakeKeylogger)
ssdeep 24576:j2uUNuA6gK47/D9GLpPR6r/hkUX9b322DS/g/JLJgiW6asdAQ:iuUggK4sd562UtpG/CJtxSqA
TLSH T12F350254238DD906C6A74BF00D70D3B96BB89E49E911C2039FF9FEEBB56D6593804382
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 lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
165
Origin country :
DE DE
Vendor Threat Intelligence
Malware configuration found for:
RoboSki
Details
Link:
https://research.acce.ciphertechsolutions.com/results/01e36834-f882-4a88-baad-01508ec2d027/
Malware family:
guloader
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ID:
1
File name:
exe
Verdict:
Malicious activity
Analysis date:
2026-09-01 06:47:07 UTC
Tags:
auto-reg guloader loader netreactor formbook xloader
Link:
https://app.any.run/tasks/5a4160b1-7f8f-4855-bf66-df2f9073f5c0

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/83513/
Detection(s):
SecuriteInfo.com.Trojan.Inject7.2471.26795.25424.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6a966f03d04c2e095863a0ab/reports/23c90e72-fa3b-4871-8a23-d28a20051114/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/ae8a1e6cd66929b78a7f4b98911d04650346cefc046eb60f2bfc85eba95686f5
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-08-31T09:11:00Z UTC
Last seen:
2026-09-02T05:12:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/ae8a1e6cd66929b78a7f4b98911d04650346cefc046eb60f2bfc85eba95686f5/results?tab=lookup
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e8892c9e-764f-4b02-a157-afbef2b5489e
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1966531
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
Creates an autostart registry key pointing to binary in C:\Windows
Creates autostart registry keys with suspicious values (likely registry only malware)
Found direct / indirect Syscall (likely to bypass EDR)
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Suricata IDS alerts for network traffic
Suspicious powershell command line found
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: 1966531 Sample: adcb.exe Startdate: 01/09/2026 Architecture: WINDOWS Score: 100 41 www.mustimus4646giris.xyz 2->41 43 www.lorvag.xyz 2->43 45 12 other IPs or domains 2->45 69 Suricata IDS alerts for network traffic 2->69 71 Malicious sample detected (through community Yara rule) 2->71 73 Antivirus detection for URL or domain 2->73 77 11 other signatures 2->77 10 adcb.exe 1 5 2->10         started        14 powershell.exe 11 2->14         started        16 powershell.exe 12 2->16         started        signatures3 75 Performs DNS queries to domains with low reputation 43->75 process4 file5 37 C:\Users\user\AppData\Roaming\Fq.exe, PE32 10->37 dropped 39 C:\Users\user\AppData\Local\...\adcb.exe.log, ASCII 10->39 dropped 79 Creates autostart registry keys with suspicious values (likely registry only malware) 10->79 81 Creates an autostart registry key pointing to binary in C:\Windows 10->81 83 Injects a PE file into a foreign processes 10->83 85 2 other signatures 10->85 18 adcb.exe 10->18         started        21 adcb.exe 10->21         started        23 adcb.exe 10->23         started        25 conhost.exe 14->25         started        27 conhost.exe 16->27         started        signatures6 process7 signatures8 61 Modifies the context of a thread in another process (thread injection) 18->61 63 Maps a DLL or memory area into another process 18->63 65 Queues an APC in another process (thread injection) 18->65 67 Found direct / indirect Syscall (likely to bypass EDR) 18->67 29 fz1kTwrl.exe 18->29 injected process9 dnsIp10 47 www.fischerwelt.com 195.34.83.112, 49723, 49724, 49725 ONE-NETWORKDE Germany 29->47 49 104.219.250.36, 49719, 49720, 49721 NAMECHEAP-NET-NamecheapIncUS United States 29->49 51 5 other IPs or domains 29->51 32 rasdial.exe 13 29->32         started        process11 signatures12 53 Tries to steal Mail credentials (via file / registry access) 32->53 55 Tries to harvest and steal browser information (history, passwords, etc) 32->55 57 Modifies the context of a thread in another process (thread injection) 32->57 59 3 other signatures 32->59 35 firefox.exe 32->35         started        process13
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/ae8a1e6cd66929b78a7f4b98911d04650346cefc046eb60f2bfc85eba95686f5
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
.Net Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.46 Win 32 Exe x86
Link:
https://app.malva.re/file/e3588eea4c91251891eb52ce99489c16
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ae8a1e6cd66929b78a7f4b98911d04650346cefc046eb60f2bfc85eba95686f5/
Threat name:
ByteCode-MSIL.Backdoor.FormBook
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Status:
Malicious
First seen:
2026-09-01 00:06:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
23 of 36 (63.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=v2fb43gwneu3pct7jomjchiemubuntx4arxlmdzl7sc6xkkwq32q._file
Verdict:
malicious
Label(s):
Formbook
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Link:
https://reports.threatray.com/0b6aa084-66a3-4679-a9be-0b6829629d06
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook adware collection discovery execution persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/260901-g4dywsbe46/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Executes dropped EXE
Command and Scripting Interpreter: PowerShell
Family: Formbook
Formbook payload
Unpacked files
SH256 hash:
ae8a1e6cd66929b78a7f4b98911d04650346cefc046eb60f2bfc85eba95686f5
MD5 hash:
e3588eea4c91251891eb52ce99489c16
SHA1 hash:
e94464c2c8cd298ab5288de6206f0cd2f9482b90
Link:
https://www.unpac.me/results/276b0aee-81c4-44a0-bbd8-ea395c63be97/
SH256 hash:
586fee184d33d36c99ed3fa2d7a8253cca275f0fd83221e1b8d406d916637ae7
MD5 hash:
3cca2c360d4a8223f7fa6c8307404145
SHA1 hash:
9a543d4434b6f5787009ffadaed9d492118f99e9
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
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Link:
https://www.unpac.me/results/276b0aee-81c4-44a0-bbd8-ea395c63be97/
Parent samples :
5fce174beeacb448a07bc69c36a1cfe043e87c26a94ace39e632f734ba04a618
ae8a1e6cd66929b78a7f4b98911d04650346cefc046eb60f2bfc85eba95686f5
SH256 hash:
e9008ae8b93305839381382e51bc422f8f206f23f8a2e9f13725bc0f858fd4b6
MD5 hash:
643d1cda3f98681a11873135d2b8f69d
SHA1 hash:
cce535c60edf07a744fec5f8b683c8b216663d51
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/276b0aee-81c4-44a0-bbd8-ea395c63be97/
SH256 hash:
1f8f79f5e3745d7b9a9639f44ec29a64d6c3a4064a6dc593d6540756f6a99dc8
MD5 hash:
a64197cfa50cec6961aa73fa8311b727
SHA1 hash:
f98635e122a7be01e02cf3dcffb6101bd134ea6c
Link:
https://www.unpac.me/results/276b0aee-81c4-44a0-bbd8-ea395c63be97/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ae8a1e6cd669/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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
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Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
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Author:Skystars LightDefender
Description:imphash

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/83513/

Comments