MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2dd9a2505feb807103a8caff637f1c046d2d0dba41ac9403a99979e13acb45b4. 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


SilverFox


Vendor detections: 10


Intelligence 10 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2dd9a2505feb807103a8caff637f1c046d2d0dba41ac9403a99979e13acb45b4
SHA3-384 hash: a76d04b59081b6be721d1780497eecfcc4396e5f63713fc1b3eb1c5de4be7253a9690177ae109196d708805aff43f996
SHA1 hash: fdf1ffc45903447f2a6ec0a3c11e1f965674ffa5
MD5 hash: e927de0d1a14c591a56b4cea00e4e7a0
humanhash: fifteen-nevada-mississippi-oscar
File name:安装助手_1.0.1.exe
Download: download sample
Signature SilverFox
Create hunting rule
File size:5'707'247 bytes
First seen:2024-12-23 04:04:23 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 40ab50289f7ef5fae60801f88d4541fc (59 x ValleyRAT, 49 x Gh0stRAT, 41 x OffLoader)
ssdeep 98304:XwRE9dQgIudso3UTFvkZlHIU4s2gFO8eZw++bRxbUlOxFtGIidMwZgf:lpdzU0loU4D8eZw+qxbEs
TLSH T1CA461213F2CBE03EE05D1B3B06B2A15494FBAA616423AD5696ECB4ECCF351601D3E647
TrID 39.3% (.EXE) Inno Setup installer (107240/4/30)
21.1% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
15.7% (.EXE) InstallShield setup (43053/19/16)
15.2% (.EXE) Win32 EXE PECompact compressed (generic) (41569/9/9)
3.8% (.EXE) Win64 Executable (generic) (10522/11/4)
Magika pebin
File icon (PE):PE icon
dhash icon 5050d270cccc82ae (109 x Adware.Generic, 43 x LummaStealer, 42 x OffLoader)
Reporter kafan_shengui
Tags:exe SilverFox winos

Intelligence

File Origin
# of uploads :
1
# of downloads :
417
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
安装助手_1.0.1.exe
Verdict:
No threats detected
Analysis date:
2024-12-23 04:08:32 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/93a2f346-92a0-400f-8cbd-c5932f94e8b6

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.DownLoad4.16298.18686.14967.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6768e1718a4d48ee35fe573e
Tags:
autorun emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Loading a system driver
Enabling the 'hidden' option for recently created files
Creating a file
Deleting a recently created file
Creating a file in the %temp% subdirectories
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Searching for synchronization primitives
Creating a process with a hidden window
Restart of the analyzed sample
Creating a file in the Program Files subdirectories
Moving a file to the Program Files subdirectory
Creating a service
Launching a service
Running batch commands
Launching a process
Forced system process termination
Enabling autorun for a service
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Labled as:
Win/malicious_confidence_60%
Link:
https://www.hybrid-analysis.com/sample/2dd9a2505feb807103a8caff637f1c046d2d0dba41ac9403a99979e13acb45b4
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/b4fb3629-fd5a-4063-bd42-fe9a1fa3d308
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
80 / 100
Link:
https://www.joesandbox.com/analysis/1579604
Signature
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Contains functionality to hide a thread from the debugger
Found driver which could be used to inject code into processes
Hides threads from debuggers
Loading BitLocker PowerShell Module
PE file contains section with special chars
Protects its processes via BreakOnTermination flag
Query firmware table information (likely to detect VMs)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1579604 Sample: #U5b89#U88c5#U52a9#U624b_1.... Startdate: 23/12/2024 Architecture: WINDOWS Score: 80 90 Found driver which could be used to inject code into processes 2->90 92 PE file contains section with special chars 2->92 94 AI detected suspicious sample 2->94 96 Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet 2->96 10 #U5b89#U88c5#U52a9#U624b_1.0.1.exe 2 2->10         started        13 cmd.exe 2->13         started        15 cmd.exe 2->15         started        17 31 other processes 2->17 process3 file4 86 C:\...\#U5b89#U88c5#U52a9#U624b_1.0.1.tmp, PE32 10->86 dropped 19 #U5b89#U88c5#U52a9#U624b_1.0.1.tmp 3 5 10->19         started        23 sc.exe 1 13->23         started        25 sc.exe 1 15->25         started        27 sc.exe 1 17->27         started        29 sc.exe 1 17->29         started        31 sc.exe 1 17->31         started        33 27 other processes 17->33 process5 file6 72 C:\Users\user\AppData\Local\...\update.vac, PE32 19->72 dropped 74 C:\Users\user\AppData\Local\...\_setup64.tmp, PE32+ 19->74 dropped 98 Adds a directory exclusion to Windows Defender 19->98 35 #U5b89#U88c5#U52a9#U624b_1.0.1.exe 2 19->35         started        38 powershell.exe 23 19->38         started        41 conhost.exe 23->41         started        43 conhost.exe 25->43         started        45 conhost.exe 27->45         started        47 conhost.exe 29->47         started        49 conhost.exe 31->49         started        51 conhost.exe 33->51         started        53 26 other processes 33->53 signatures7 process8 file9 76 C:\...\#U5b89#U88c5#U52a9#U624b_1.0.1.tmp, PE32 35->76 dropped 55 #U5b89#U88c5#U52a9#U624b_1.0.1.tmp 4 16 35->55         started        100 Loading BitLocker PowerShell Module 38->100 59 conhost.exe 38->59         started        61 WmiPrvSE.exe 38->61         started        signatures10 process11 file12 78 C:\Users\user\AppData\Local\...\update.vac, PE32 55->78 dropped 80 C:\Users\user\AppData\Local\...\_setup64.tmp, PE32+ 55->80 dropped 82 C:\Program Files (x86)\...\trash (copy), PE32+ 55->82 dropped 84 3 other files (none is malicious) 55->84 dropped 102 Query firmware table information (likely to detect VMs) 55->102 104 Protects its processes via BreakOnTermination flag 55->104 106 Hides threads from debuggers 55->106 108 Contains functionality to hide a thread from the debugger 55->108 63 7zr.exe 2 55->63         started        66 7zr.exe 6 55->66         started        signatures13 process14 file15 88 C:\Program Files (x86)\...\tProtect.dll, PE32+ 63->88 dropped 68 conhost.exe 63->68         started        70 conhost.exe 66->70         started        process16
Score:
83%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/2dd9a2505feb807103a8caff637f1c046d2d0dba41ac9403a99979e13acb45b4
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/2dd9a2505feb807103a8caff637f1c046d2d0dba41ac9403a99979e13acb45b4/
Threat name:
Win32.Trojan.Malgent
Create hunting rule
Status:
Malicious
First seen:
2024-12-23 04:05:06 UTC
File Type:
PE (Exe)
AV detection:
19 of 38 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fxm2euc75oahca5izl7wg7y4arws2dn2igwjia5jtf46cowliw2a._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery execution persistence
Link:
https://tria.ge/reports/241223-enhk2awkbq/
Behaviour
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: LoadsDriver
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Launches sc.exe
Drops file in System32 directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Command and Scripting Interpreter: PowerShell
Creates new service(s)
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/efc9fb2b-fda1-4031-847e-313a48154d82
Unpacked files
SH256 hash:
35f62c8e0e60b4054caf0685e4fd57fb0a5efd6fa6bcd65fa2929459f633b0f9
MD5 hash:
2237d8b214aac225090db6ebbfe6f224
SHA1 hash:
a193e8e9310febc173202ff2e8374d7df3359e5c
Link:
https://www.unpac.me/results/02d58dc2-0627-4655-b679-951a4eb5b83b/
SH256 hash:
2dd9a2505feb807103a8caff637f1c046d2d0dba41ac9403a99979e13acb45b4
MD5 hash:
e927de0d1a14c591a56b4cea00e4e7a0
SHA1 hash:
fdf1ffc45903447f2a6ec0a3c11e1f965674ffa5
Link:
https://www.unpac.me/results/02d58dc2-0627-4655-b679-951a4eb5b83b/
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/2dd9a2505feb807103a8caff637f1c046d2d0dba41ac9403a99979e13acb45b4

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:Borland
Create hunting rule
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:RansomPyShield_Antiransomware
Create hunting rule
Author:XiAnzheng
Description:Check for Suspicious String and Import combination that Ransomware mostly abuse(can create FP)
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

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
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User Authorizationadvapi32.dll::AllocateAndInitializeSid
advapi32.dll::ConvertSidToStringSidW
advapi32.dll::ConvertStringSecurityDescriptorToSecurityDescriptorW
advapi32.dll::EqualSid
advapi32.dll::FreeSid
SECURITY_BASE_APIUses Security Base APIadvapi32.dll::AdjustTokenPrivileges
advapi32.dll::GetTokenInformation
WIN32_PROCESS_APICan Create Process and Threadskernel32.dll::CreateProcessW
advapi32.dll::OpenProcessToken
advapi32.dll::OpenThreadToken
kernel32.dll::CloseHandle
kernel32.dll::CreateThread
WIN_BASE_APIUses Win Base APIkernel32.dll::LoadLibraryA
kernel32.dll::LoadLibraryExW
kernel32.dll::LoadLibraryW
kernel32.dll::GetDriveTypeW
kernel32.dll::GetVolumeInformationW
kernel32.dll::GetSystemInfo
WIN_BASE_IO_APICan Create Fileskernel32.dll::CreateDirectoryW
kernel32.dll::CreateFileW
kernel32.dll::DeleteFileW
kernel32.dll::GetWindowsDirectoryW
kernel32.dll::GetSystemDirectoryW
kernel32.dll::GetFileAttributesW
WIN_BASE_USER_APIRetrieves Account Informationadvapi32.dll::LookupPrivilegeValueW
WIN_REG_APICan Manipulate Windows Registryadvapi32.dll::RegOpenKeyExW
advapi32.dll::RegQueryValueExW
WIN_USER_APIPerforms GUI Actionsuser32.dll::PeekMessageW
user32.dll::CreateWindowExW

Comments