MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 103978e2e56eadd042f998d75a56178c72a0448c6625802129f35cfb542a2059. 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


SliverFox


Vendor detections: 10


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

SHA256 hash: 103978e2e56eadd042f998d75a56178c72a0448c6625802129f35cfb542a2059
SHA3-384 hash: cde09f9b664f91c9a7b4e2ade3ed1f92708acd5d78f6421b1863cebfcb172c2751e93deb4398d7ac6b931ade9fc38115
SHA1 hash: c9d3d45d0a7845aa5614254b33db65899e21fe05
MD5 hash: 553286e3a2b453b78f5c9b29d1fd1404
humanhash: finch-india-wisconsin-lion
File name:UOKnd.76309.05.exe
Download: download sample
Signature SliverFox
Create hunting rule
File size:66'457'619 bytes
First seen:2025-03-30 05:10:39 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash a696fee49ce9130172bc9713039474d2 (1 x SliverFox)
ssdeep 1572864:BHfGgPIYGX3BUgnvDNGuATRj5QbkzW5ZUoMQnQ:NfeniYIu+QtUoMQnQ
TLSH T1B4E78C6A96EC612DFC1AE331244615224B143E250AF85F8F71AC3507AF3B5F33A926DD
TrID 41.1% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
21.7% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
13.8% (.EXE) Win64 Executable (generic) (10522/11/4)
6.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.9% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
dhash icon 64b0c9c8e8ee6c0c (1 x SliverFox)
Reporter zhuzhu0009
Tags:backdoor exe SilverFox SliverFox winos

Intelligence

File Origin
# of uploads :
1
# of downloads :
614
Origin country :
JP JP
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
UOKnd.76309.05.exe
Verdict:
No threats detected
Analysis date:
2025-03-30 05:13:37 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/f49f2207-dfec-4316-ba9f-fb7224c1cb09

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67e8d523855e5ec52409e2c0
Tags:
shellcode cobalt virus small
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Connection attempt to an infection source
Creating a file
Enabling the 'hidden' option for recently created files
Creating a process from a recently created file
Query of malicious DNS domain
Sending a TCP request to an infection source
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
action anti-vm anti-vm explorer fingerprint lolbin microsoft_visual_cc overlay packed packed packer_detected runonce
Link:
https://www.filescan.io/uploads/67e8d270d07c4c37a25df3eb/reports/dacc2a75-268f-41f0-abee-4db459291715/overview
Verdict:
Malicious
Labled as:
Win64/Agent.DML
Link:
https://www.hybrid-analysis.com/sample/103978e2e56eadd042f998d75a56178c72a0448c6625802129f35cfb542a2059
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1652062
Signature
Drops PE files to the document folder of the user
Found direct / indirect Syscall (likely to bypass EDR)
Multi AV Scanner detection for submitted file
PE file contains section with special chars
Tries to detect virtualization through RDTSC time measurements
Behaviour
Behavior Graph:
Download SVG
Score:
44%
Verdict:
Susipicious
File Type:
PE
Link:
https://malprob.io/report/103978e2e56eadd042f998d75a56178c72a0448c6625802129f35cfb542a2059
Gathering data
Threat name:
Win64.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2025-03-30 05:11:18 UTC
File Type:
PE+ (Exe)
Extracted files:
99
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ca4xryxfn2w5aqxztdlvuvqxrrzkaremmysyaijj6nopwvbkebmq._file
Result
Malware family:
n/a
Score:
  4/10
Tags:
link pdf
Link:
https://tria.ge/reports/250330-fvch2a1scs/
Behaviour
Suspicious behavior: EnumeratesProcesses
Verdict:
Malicious
Tags:
Win.Malware.Backdoorx-10039833-0 ta_abused_service
YARA:
n/a
Link:
https://app.threat.zone/submission/9de10199-c93d-4756-afd3-23580d4fe722
Please note that we are no longer able to provide a coverage score for Virus Total.

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 (HIGH_ENTROPY_VA)high
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteW
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleMode
KERNEL32.dll::GetConsoleCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::FindFirstFileW
VERSION.dll::GetFileVersionInfoSizeW
VERSION.dll::GetFileVersionInfoW
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueExW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::EmptyClipboard
USER32.dll::OpenClipboard
USER32.dll::CreateWindowExW

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