MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fcf632af143e88dfba5e9256d0fb238eb314b0d20e63141cb659ed7ad001cbb4. 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: 17


Intelligence 17 IOCs YARA 14 File information Comments
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SHA256 hash: fcf632af143e88dfba5e9256d0fb238eb314b0d20e63141cb659ed7ad001cbb4
SHA3-384 hash: a2395bc7d5e12f03a0cb7330c14de161616fee221ae5991ade595358d7a8f1ad7c6e451ad05d4f027a42c6c2ec310dbe
SHA1 hash: 19cf9bd0f6976d75f7738ec74d2b326edee5bdde
MD5 hash: 3364dc2488f8444000a9da4c6d999fc4
humanhash: vegan-oranges-nuts-summer
File name:fcf632af143e88dfba5e9256d0fb238eb314b0d20e63141cb659ed7ad001cbb4
Download: download sample
Signature Formbook
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File size:1'627'744 bytes
First seen:2024-10-08 13:34:28 UTC
Last seen:2024-10-08 14:34:47 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 22a65106d3d84ea74d966fa0424a5a0c (8 x Formbook, 2 x AsyncRAT, 1 x AgentTesla)
ssdeep 49152:AAodtaG9kS2U84B+FLan9k5TRM9zlcVj7vdLJ7t:A/B18P7t
Threatray 12 similar samples on MalwareBazaar
TLSH T17C75CF19E3A811FCD527C674CB55A233E6B170560B21A4CB1B99C7452FB3EE26B7B302
TrID 47.1% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
35.2% (.EXE) InstallShield setup (43053/19/16)
8.6% (.EXE) Win64 Executable (generic) (10523/12/4)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
1.6% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
Reporter adrian__luca
Tags:exe FormBook signed

Code Signing Certificate

Organisation:Microsoft Code Signing PCA 2011
Issuer:Microsoft Code Signing PCA 2011
Algorithm:sha256WithRSAEncryption
Valid from:2024-09-17T10:22:40Z
Valid to:2025-09-17T10:22:40Z
Serial number: 101013da8ddb93a6f41083213d4e782b
Thumbprint Algorithm:SHA256
Thumbprint: 11e14f15fbde946d88b6ffc159bd10f8806ecc7bd2769f260436dd6cb51a2a4a
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
370
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
fcf632af143e88dfba5e9256d0fb238eb314b0d20e63141cb659ed7ad001cbb4
Verdict:
Malicious activity
Analysis date:
2024-10-08 13:34:01 UTC
Tags:
formbook xloader stealer
Link:
https://app.any.run/tasks/3ee754da-9bbf-4a08-9e2f-a65faec03fb8

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win64.Evo-gen.20730.16800.UNOFFICIAL
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Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67053509dcb599bb05a50902
Tags:
Injection Exploit Trojan
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
fingerprint hacktool lolbin microsoft_visual_cc overlay packed regedit shell32 signed
Link:
https://www.filescan.io/uploads/6705350cd92ce92b9f9b9918/reports/7f0ac491-5db8-4327-9b65-ec07cc3a947c/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/fcf632af143e88dfba5e9256d0fb238eb314b0d20e63141cb659ed7ad001cbb4
Result
Verdict:
MALICIOUS
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:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9a3fa028-c4a6-454c-afc1-9c3b09e43db8
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1529053
Signature
AI detected suspicious sample
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Rundll32 Execution Without CommandLine Parameters
Switches to a custom stack to bypass stack traces
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1529053 Sample: kHslwiV2w6.exe Startdate: 08/10/2024 Architecture: WINDOWS Score: 100 32 15.164.165.52.in-addr.arpa 2->32 34 Found malware configuration 2->34 36 Malicious sample detected (through community Yara rule) 2->36 38 Multi AV Scanner detection for submitted file 2->38 40 5 other signatures 2->40 11 kHslwiV2w6.exe 1 2->11         started        signatures3 process4 signatures5 48 Writes to foreign memory regions 11->48 50 Allocates memory in foreign processes 11->50 52 Sample uses process hollowing technique 11->52 54 Injects a PE file into a foreign processes 11->54 14 ngen.exe 11->14         started        17 conhost.exe 11->17         started        19 wab.exe 11->19         started        21 2 other processes 11->21 process6 signatures7 56 Modifies the context of a thread in another process (thread injection) 14->56 58 Maps a DLL or memory area into another process 14->58 60 Sample uses process hollowing technique 14->60 62 3 other signatures 14->62 23 explorer.exe 5 1 14->23 injected process8 process9 25 rundll32.exe 23->25         started        signatures10 42 Modifies the context of a thread in another process (thread injection) 25->42 44 Maps a DLL or memory area into another process 25->44 46 Tries to detect virtualization through RDTSC time measurements 25->46 28 cmd.exe 1 25->28         started        process11 process12 30 conhost.exe 28->30         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/fcf632af143e88dfba5e9256d0fb238eb314b0d20e63141cb659ed7ad001cbb4
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/fcf632af143e88dfba5e9256d0fb238eb314b0d20e63141cb659ed7ad001cbb4/
Threat name:
Win64.Backdoor.FormBook
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Status:
Malicious
First seen:
2024-10-08 13:35:05 UTC
File Type:
PE+ (Exe)
Extracted files:
1
AV detection:
23 of 38 (60.53%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7t3dflyuh2en7os6sjlnb6zdr2zrjmgsbzrrihfwlhwxvuabzo2a._file
Verdict:
malicious
Label(s):
formbook
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Similar samples:
219a330b7ae9807411d289f28169861fc748f50212ae2317278bfe155d89990f
Formbook
2d9e008828a19f6329b2ca4abcfdefa9b124e1eb5eb3270be8b6f1f77476b3d1
Formbook
bef721bdc066308d9966d0ff47fa2458141c6da5c0de46d14f8b56154dddbb4a
Formbook
error
Formbook
f53ac19e1eaa2c09cd5d01fdf87d548fa6f93e02fe8562971a3b836675c0187b
Formbook
f60a33a69d22f73768dca02063c875e3dbeae931f741b05278ed908db8fc0de0
Formbook
+ 2 additional samples on MalwareBazaar
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:md02 discovery persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/241008-qvn7yazbjq/
Behaviour
Modifies Internet Explorer settings
Runs regedit.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Adds Run key to start application
Uses the VBS compiler for execution
Adds policy Run key to start application
Formbook payload
Formbook
Verdict:
Malicious
Tags:
formbook
YARA:
n/a
Link:
https://app.threat.zone/submission/fcccc893-d397-4347-9d4e-c0aaf4199b6d
Unpacked files
SH256 hash:
fcf632af143e88dfba5e9256d0fb238eb314b0d20e63141cb659ed7ad001cbb4
MD5 hash:
3364dc2488f8444000a9da4c6d999fc4
SHA1 hash:
19cf9bd0f6976d75f7738ec74d2b326edee5bdde
Link:
https://www.unpac.me/results/b46ec438-9061-46b2-833f-0207ca6328ec/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/fcf632af143e88dfba5e9256d0fb238eb314b0d20e63141cb659ed7ad001cbb4

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:DebuggerCheck__API
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__MemoryWorkingSet
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Author:Fernando Mercês
Description:Anti-debug process memory working set size check
Reference:http://www.gironsec.com/blog/2015/06/anti-debugger-trick-quicky/
Rule name:Disable_Defender
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Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:Jupyter_infostealer
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Author:CD_R0M_
Description:Rule for Jupyter Infostealer/Solarmarker malware from september 2021-December 2022
Rule name:NET
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Author:malware-lu
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

File information

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

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_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high
Reviews
IDCapabilitiesEvidence
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
WIN32_PROCESS_APICan Create Process and ThreadsADVAPI32.dll::OpenProcessToken
KERNEL32.dll::OpenProcess
KERNEL32.dll::VirtualAllocExNuma
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThreadpoolIo
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetSystemInfo
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::AllocConsole
KERNEL32.dll::FreeConsole
KERNEL32.dll::GetConsoleWindow
KERNEL32.dll::GetConsoleOutputCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::LookupPrivilegeValueW
WIN_BCRYPT_APICan Encrypt Filesbcrypt.dll::BCryptDestroyKey
bcrypt.dll::BCryptGenerateSymmetricKey
bcrypt.dll::BCryptGenRandom
bcrypt.dll::BCryptOpenAlgorithmProvider
bcrypt.dll::BCryptCloseAlgorithmProvider
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW

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