MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fcd89e9706329dbdfeee7efec248480bbd72686dcde1fa17565c63d7afbba55f. 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: 15


Intelligence 15 IOCs YARA 4 File information Comments

SHA256 hash: fcd89e9706329dbdfeee7efec248480bbd72686dcde1fa17565c63d7afbba55f
SHA3-384 hash: 6235200a1cbfddf6f94a0dcc006a803ce60274f07e03c73f890d568657cfba6434a7a23fed908cf678a90edd99c3b463
SHA1 hash: 1a4705968d14cfc0600f980196663dc8aeae339d
MD5 hash: c279939887a8049435c4a38b0e254c86
humanhash: echo-happy-asparagus-friend
File name:fcd89e9706329dbdfeee7efec248480bbd72686dcde1fa17565c63d7afbba55f
Download: download sample
Signature ValleyRAT
File size:4'702'208 bytes
First seen:2025-03-13 10:04:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 12defe8cb0483ecd701e00b88ceca9e6 (1 x ValleyRAT)
ssdeep 98304:ZE2BPEe2lKeoNS3+7M9eewS6XntrMM3vkSGoTrwEV:ZEFUe5gM8eYn4oY
TLSH T1A526B641EF80D5C8D93955FC0AE6F372F7D53AA03762982C24E25B121AF6ACCC772A45
TrID 41.1% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
26.1% (.EXE) Win64 Executable (generic) (10522/11/4)
12.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.1% (.ICL) Windows Icons Library (generic) (2059/9)
5.0% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
Reporter JAMESWT_WT
Tags:27-124-3-142 exe ValleyRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
401
Origin country :
IT IT
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
fcd89e9706329dbdfeee7efec248480bbd72686dcde1fa17565c63d7afbba55f
Verdict:
Malicious activity
Analysis date:
2025-03-13 10:33:36 UTC
Tags:
valleyrat winos silverfox rat arch-exec

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Tags:
phishing emotet lien
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Launching a process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-debug mingw packed packed packer_detected
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.
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Changes security center settings (notifications, updates, antivirus, firewall)
Contains functionality to detect sleep reduction / modifications
Contains functionality to inject code into remote processes
Detected unpacking (creates a PE file in dynamic memory)
Found API chain indicative of debugger detection
Found evasive API chain (may stop execution after checking mutex)
Found suspicious ZIP file
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for submitted file
Opens the same file many times (likely Sandbox evasion)
Queries temperature or sensor information (via WMI often done to detect virtual machines)
Suricata IDS alerts for network traffic
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1637108 Sample: H17eD6fkq7.exe Startdate: 13/03/2025 Architecture: WINDOWS Score: 100 52 longlqcl.top 2->52 56 Suricata IDS alerts for network traffic 2->56 58 Antivirus / Scanner detection for submitted sample 2->58 60 Multi AV Scanner detection for submitted file 2->60 62 2 other signatures 2->62 8 H17eD6fkq7.exe 11 2->8         started        12 svchost.exe 2->12         started        14 cmd.exe 2 3 2->14         started        16 7 other processes 2->16 signatures3 process4 dnsIp5 40 C:\ProgramData\da90td\da90td.exe, PE32 8->40 dropped 42 C:\Users\user\AppData\Roaming\da90td.exe, PE32 8->42 dropped 44 C:\ProgramData\da90td\da90td.potco (copy), PE32 8->44 dropped 46 C:\ProgramData\da90td\VEDecoder.dll, PE32 8->46 dropped 64 Queries temperature or sensor information (via WMI often done to detect virtual machines) 8->64 19 cmd.exe 1 8->19         started        21 write.exe 1 8->21         started        66 Changes security center settings (notifications, updates, antivirus, firewall) 12->66 23 MpCmdRun.exe 2 12->23         started        25 da90td.exe 2 14->25         started        50 127.0.0.1 unknown unknown 16->50 file6 signatures7 process8 process9 27 da90td.exe 1 19->27         started        32 conhost.exe 19->32         started        34 wordpad.exe 21->34         started        36 conhost.exe 23->36         started        38 conhost.exe 2 25->38         started        dnsIp10 54 27.124.3.142, 49683, 49689, 49696 BCPL-SGBGPNETGlobalASNSG Singapore 27->54 48 C:\Users\user\AppData\Local\da90td.exe, PE32 27->48 dropped 68 Detected unpacking (creates a PE file in dynamic memory) 27->68 70 Found evasive API chain (may stop execution after checking mutex) 27->70 72 Found API chain indicative of debugger detection 27->72 74 3 other signatures 27->74 file11 signatures12
Threat name:
Win64.Backdoor.Cobalt
Status:
Malicious
First seen:
2024-12-02 18:55:50 UTC
File Type:
PE+ (Exe)
Extracted files:
1
AV detection:
20 of 38 (52.63%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
Similar samples:
Result
Malware family:
valleyrat_s2
Score:
  10/10
Tags:
family:valleyrat_s2 backdoor discovery
Behaviour
Modifies data under HKEY_USERS
Suspicious behavior: CmdExeWriteProcessMemorySpam
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops startup file
Executes dropped EXE
Loads dropped DLL
ValleyRat
Valleyrat_s2 family
Malware Config
C2 Extraction:
27.124.3.142:8088
Unpacked files
SH256 hash:
fcd89e9706329dbdfeee7efec248480bbd72686dcde1fa17565c63d7afbba55f
MD5 hash:
c279939887a8049435c4a38b0e254c86
SHA1 hash:
1a4705968d14cfc0600f980196663dc8aeae339d
Please note that we are no longer able to provide a coverage score for Virus Total.

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:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:pe_detect_tls_callbacks
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:ThreadControl__Context
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_AUTHENTICODEMissing Authenticodehigh
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
CHECK_TRUST_INFORequires Elevated Execution (level:requireAdministrator)high
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetStartupInfoA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::GetConsoleWindow

Comments