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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a42f4c5c12ac4df7591ec4cc750b88182d910e5f2e2e8b852517c542da3f4e55. 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


CobaltStrike


Vendor detections: 10


Intelligence 10 IOCs YARA 27 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a42f4c5c12ac4df7591ec4cc750b88182d910e5f2e2e8b852517c542da3f4e55
SHA3-384 hash: 716827327ebabaa1f8b6e08add4cb4386178cd44fa2b5b1807e8bbba05c78a965ca643a69d0c59a7046a1d670ec14dbe
SHA1 hash: 95f0baceb4c750b1b983a10b6a5bb33d87e57c53
MD5 hash: 7c1fd39213586bff2a3ad6a094cbcc8c
humanhash: november-october-twenty-football
File name:4115860730.exe
Download: download sample
Signature CobaltStrike
Create hunting rule
File size:24'269'312 bytes
First seen:2024-07-31 16:25:10 UTC
Last seen:2024-07-31 17:16:01 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 6454483e280a4dc0f19e86509f97235f (1 x CobaltStrike)
ssdeep 393216:eqghTna6Z16uJW3mQPc5i8gsKi8uGhFbJeT2Kf5Jsv6tWKFdu9CXcF:9OjOS0Oyq
Threatray 1 similar samples on MalwareBazaar
TLSH T1A937BE5BB2A500D4D1B6C078CA57C50BFBB2781657B197DB21A496DA2F33BE02D3B321
TrID 63.5% (.EXE) Win64 Executable (generic) (10523/12/4)
12.2% (.EXE) OS/2 Executable (generic) (2029/13)
12.0% (.EXE) Generic Win/DOS Executable (2002/3)
12.0% (.EXE) DOS Executable Generic (2000/1)
Reporter vm001cn
Tags:Cobalt Strike CobaltStrike exe


Avatar
vm001cn
https://wwwfeiyunglishacaishuicm.oss-us-west-1.aliyuncs.com/31142407e30/4115860730.exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
421
Origin country :
HK HK
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
4115860730.exe
Verdict:
No threats detected
Analysis date:
2024-07-31 16:32:36 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/b65bdbd1-b7a7-49bb-9cb3-1cce1f9ccc28

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
90.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66aa65a1037b02d0daecc813
Tags:
n/a
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm cobalt crypto evasive fingerprint keylogger lolbin obfuscated packed shell32
Link:
https://www.filescan.io/uploads/66aa65ad4c5c17942a80cbe3/reports/2a854ba4-aba2-4801-9ff7-6e86bf636b4d/overview
Verdict:
Malicious
Labled as:
Win64/GenKryptik.GZVO trojan
Link:
https://www.hybrid-analysis.com/sample/a42f4c5c12ac4df7591ec4cc750b88182d910e5f2e2e8b852517c542da3f4e55
Result
Threat name:
n/a
Detection:
malicious
Classification:
n/a
Score:
48 / 100
Link:
https://www.joesandbox.com/analysis/1485493
Signature
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
Score:
41%
Verdict:
Susipicious
File Type:
PE
Link:
https://malprob.io/report/a42f4c5c12ac4df7591ec4cc750b88182d910e5f2e2e8b852517c542da3f4e55
Gathering data
Threat name:
Win64.Trojan.Malgent
Create hunting rule
Status:
Malicious
First seen:
2024-07-31 08:29:35 UTC
File Type:
PE+ (Exe)
Extracted files:
5
AV detection:
13 of 24 (54.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uqxuyxasvrg7owi6ytghkc4idawzcds7fyxixbjfc7cufwr7jzkq._file
Verdict:
unknown
Similar samples:
a42f4c5c12ac4df7591ec4cc750b88182d910e5f2e2e8b852517c542da3f4e55
CobaltStrike
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/240731-txhpqasfrq/
Behaviour
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Malware Family:
n/a
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/2d564658-a4e1-4b6c-a5ae-09b8d1d27380
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/a42f4c5c12ac4df7591ec4cc750b88182d910e5f2e2e8b852517c542da3f4e55

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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
Rule name:Check_Debugger
Create hunting rule
Rule name:Check_OutputDebugStringA_iat
Create hunting rule
Rule name:CobaltStrike_Sleeve_BeaconLoader_HA_x64_o_v4_3_v4_4_v4_5_and_v4_6
Create hunting rule
Author:gssincla@google.com
Description:Cobalt Strike's sleeve/BeaconLoader.HA.x64.o (HeapAlloc) Versions 4.3 through at least 4.6
Reference:https://cloud.google.com/blog/products/identity-security/making-cobalt-strike-harder-for-threat-actors-to-abuse
Rule name:CobaltStrike__Sleeve_BeaconLoader_HA_x64_o_v4_3_v4_4_v4_5_and_v4_6
Create hunting rule
Author:gssincla@google.com
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:Mimikatz_Generic
Create hunting rule
Author:Still
Description:attempts to match all variants of Mimikatz
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:QbotStuff
Create hunting rule
Author:anonymous
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:SUSP_Websites
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects the reference of suspicious sites that might be used to download further malware
Rule name:SUSP_XORed_MSDOS_Stub_Message
Create hunting rule
Author:Florian Roth
Description:Detects suspicious XORed MSDOS stub message
Reference:https://yara.readthedocs.io/en/latest/writingrules.html#xor-strings
Rule name:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques
Rule name:yara_template
Create hunting rule

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_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User AuthorizationADVAPI32.dll::AllocateAndInitializeSid
ADVAPI32.dll::BuildTrusteeWithSidW
ADVAPI32.dll::CopySid
ADVAPI32.dll::CreateWellKnownSid
ADVAPI32.dll::FreeSid
ADVAPI32.dll::GetEffectiveRightsFromAclW
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
ole32.dll::CreateStreamOnHGlobal
GDI_PLUS_APIInterfaces with Graphicsgdiplus.dll::GdiplusStartup
gdiplus.dll::GdiplusShutdown
gdiplus.dll::GdipDeleteGraphics
gdiplus.dll::GdipAlloc
gdiplus.dll::GdipCreateFromHDC
MULTIMEDIA_APICan Play MultimediaWINMM.dll::PlaySoundW
WINMM.dll::timeKillEvent
WINMM.dll::timeSetEvent
NET_SHARE_APICan access Network ShareNETAPI32.dll::NetShareEnum
RPC_APICan Execute Remote ProceduresRPCRT4.dll::RpcAsyncCompleteCall
RPCRT4.dll::RpcAsyncInitializeHandle
RPCRT4.dll::RpcBindingFree
RPCRT4.dll::RpcBindingFromStringBindingW
RPCRT4.dll::RpcBindingSetAuthInfoExW
RPCRT4.dll::RpcRaiseException
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AccessCheck
ADVAPI32.dll::DuplicateToken
ADVAPI32.dll::GetTokenInformation
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteW
SHELL32.dll::SHGetFileInfoW
WIN32_PROCESS_APICan Create Process and ThreadsADVAPI32.dll::CreateProcessAsUserW
KERNEL32.dll::CreateProcessW
KERNEL32.dll::OpenProcess
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::VirtualAllocEx
KERNEL32.dll::WriteProcessMemory
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
ntdll.dll::NtQueryInformationProcess
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::GetDriveTypeW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleMode
KERNEL32.dll::GetConsoleOutputCP
KERNEL32.dll::GetConsoleWindow
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileMappingW
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::MoveFileExW
KERNEL32.dll::MoveFileW
SHLWAPI.dll::PathRemoveFileSpecW
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::LookupAccountSidW
WIN_CRYPT_APIUses Windows Crypt APIADVAPI32.dll::CryptAcquireContextW
ADVAPI32.dll::CryptCreateHash
ADVAPI32.dll::CryptDecrypt
ADVAPI32.dll::CryptDeriveKey
ADVAPI32.dll::CryptHashData
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryInfoKeyW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW
WIN_SVC_APICan Manipulate Windows ServicesADVAPI32.dll::OpenSCManagerW
ADVAPI32.dll::OpenServiceW
ADVAPI32.dll::StartServiceW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::AppendMenuW
USER32.dll::CreateMenu
ole32.dll::OleCreateMenuDescriptor
USER32.dll::EmptyClipboard
USER32.dll::FindWindowA
USER32.dll::FindWindowExW
USER32.dll::FindWindowW

Comments