MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ac7a870316c9f66b5750e39592f97e58a5ae8da0f05951a5f25047b15aa88041. 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


ValleyRAT


Vendor detections: 10


Intelligence 10 IOCs 1 YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ac7a870316c9f66b5750e39592f97e58a5ae8da0f05951a5f25047b15aa88041
SHA3-384 hash: 3bea58cce30c10e0562790f66c6972dd1f0eaf0aeffe7194daa6c177cb27dfe15e8df634aab3b03ce5075770657fb8d9
SHA1 hash: 3c0fcaf35b6f6cb6eb710ccb91c691fa629430ab
MD5 hash: 8af97a4879574d6e29e4e9fcd3a9bef0
humanhash: bacon-eighteen-lithium-island
File name:安装程序_1.1.2.exe
Download: download sample
Signature ValleyRAT
Create hunting rule
File size:9'026'305 bytes
First seen:2024-12-25 03:29:06 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 196608:ljhhOJmKi8b+H7K+ofxIrA12fIkfRZUNNbqlg:ljRKP+HGhxsAUfIQRZkUC
TLSH T1AD962313F2CBD43EE06A0B3755B2A15484FB6A606427BE468AEC74ACCF365501E3E747
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 ValleyRAT winos

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
156.224.26.96:6666 https://threatfox.abuse.ch/ioc/1359537/

Intelligence

File Origin
# of uploads :
1
# of downloads :
417
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
安装程序_1.1.2.exe
Verdict:
No threats detected
Analysis date:
2024-12-25 03:32:02 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/1e747363-7fa1-4a37-9393-ee0ccb5008d6

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=676b7c3d8a4d48ee35ff2166
Tags:
autorun emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
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
Searching for the window
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
Loading a system driver
Enabling the 'hidden' option for recently created files
Creating a file
Deleting a recently created file
Connection attempt
Sending a UDP request
Launching the process to change the firewall settings
Enabling autorun for a service
Query of malicious DNS domain
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Suspicious
Labled as:
Malware_46.8
Link:
https://www.hybrid-analysis.com/sample/ac7a870316c9f66b5750e39592f97e58a5ae8da0f05951a5f25047b15aa88041
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/737c2c00-4b8a-4565-869c-33cdd2e20f42
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/1580551
Signature
Adds a directory exclusion to Windows Defender
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
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
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: 1580551 Sample: #U5b89#U88c5#U7a0b#U5e8f_1.... Startdate: 25/12/2024 Architecture: WINDOWS Score: 92 92 Multi AV Scanner detection for dropped file 2->92 94 Multi AV Scanner detection for submitted file 2->94 96 Found driver which could be used to inject code into processes 2->96 98 2 other signatures 2->98 10 #U5b89#U88c5#U7a0b#U5e8f_1.1.2.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 90 C:\...\#U5b89#U88c5#U7a0b#U5e8f_1.1.2.tmp, PE32 10->90 dropped 19 #U5b89#U88c5#U7a0b#U5e8f_1.1.2.tmp 3 5 10->19         started        23 Conhost.exe 10->23         started        25 sc.exe 1 13->25         started        27 sc.exe 1 15->27         started        29 sc.exe 1 17->29         started        31 sc.exe 1 17->31         started        33 sc.exe 1 17->33         started        35 27 other processes 17->35 process5 file6 76 C:\Users\user\AppData\Local\...\update.vbc, PE32 19->76 dropped 78 C:\Users\user\AppData\Local\...\_setup64.tmp, PE32+ 19->78 dropped 100 Adds a directory exclusion to Windows Defender 19->100 37 #U5b89#U88c5#U7a0b#U5e8f_1.1.2.exe 2 19->37         started        40 powershell.exe 23 19->40         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 conhost.exe 35->53         started        55 26 other processes 35->55 signatures7 process8 file9 80 C:\...\#U5b89#U88c5#U7a0b#U5e8f_1.1.2.tmp, PE32 37->80 dropped 57 #U5b89#U88c5#U7a0b#U5e8f_1.1.2.tmp 4 15 37->57         started        102 Loading BitLocker PowerShell Module 40->102 61 conhost.exe 40->61         started        63 WmiPrvSE.exe 40->63         started        signatures10 process11 file12 82 C:\Users\user\AppData\Local\...\update.vbc, PE32 57->82 dropped 84 C:\Program Files (x86)\Windows NT\hrsw.vbc, PE32 57->84 dropped 86 C:\Users\user\AppData\Local\...\_setup64.tmp, PE32+ 57->86 dropped 88 C:\Program Files (x86)\Windows NT\7zr.exe, PE32 57->88 dropped 104 Query firmware table information (likely to detect VMs) 57->104 106 Protects its processes via BreakOnTermination flag 57->106 108 Hides threads from debuggers 57->108 110 Contains functionality to hide a thread from the debugger 57->110 65 7zr.exe 2 57->65         started        68 7zr.exe 7 57->68         started        signatures13 process14 file15 74 C:\Program Files (x86)\...\tProtect.dll, PE32+ 65->74 dropped 70 conhost.exe 65->70         started        72 conhost.exe 68->72         started        process16
Score:
81%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/ac7a870316c9f66b5750e39592f97e58a5ae8da0f05951a5f25047b15aa88041
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ac7a870316c9f66b5750e39592f97e58a5ae8da0f05951a5f25047b15aa88041/
Threat name:
Win32.Trojan.Malgent
Create hunting rule
Status:
Malicious
First seen:
2024-12-25 03:30:06 UTC
File Type:
PE (Exe)
AV detection:
18 of 38 (47.37%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vr5ioaywzh3gwv2q4okzf6l6lcs25dna6bmvdjpskbd3cwviqbaq._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery execution persistence
Link:
https://tria.ge/reports/241225-d2gp8awqer/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: LoadsDriver
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
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/96b92e2c-6e0a-4eb6-8a42-77cad0c8d6c0
Unpacked files
SH256 hash:
1ce69cf8449564dc4079a27b07282571c48c1266c0c5226d587381a5de86abf2
MD5 hash:
e6fc411d7615d270be402136ade0fde2
SHA1 hash:
071456fa0b31629c1790321c72ceec62839e7e95
Link:
https://www.unpac.me/results/cf7560f4-4782-4e4c-b2d8-e7750f5fb67f/
SH256 hash:
ac7a870316c9f66b5750e39592f97e58a5ae8da0f05951a5f25047b15aa88041
MD5 hash:
8af97a4879574d6e29e4e9fcd3a9bef0
SHA1 hash:
3c0fcaf35b6f6cb6eb710ccb91c691fa629430ab
Link:
https://www.unpac.me/results/cf7560f4-4782-4e4c-b2d8-e7750f5fb67f/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ac7a870316c9/report/overview.html
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/ac7a870316c9f66b5750e39592f97e58a5ae8da0f05951a5f25047b15aa88041

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