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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 32acc283188b9c7578a49f288c7adbc7b33a96bb25bcd03057bda02c0f003be8. 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


GuLoader


Vendor detections: 12


Intelligence 12 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 32acc283188b9c7578a49f288c7adbc7b33a96bb25bcd03057bda02c0f003be8
SHA3-384 hash: d268864638257d1cf3f3cf57a0ef186fd1264768be7cf4080ec294f2a63f8c0311df6fd3150f6b570994c9d84b1bb85d
SHA1 hash: 7c14a7a4701066ec8c7e4cceba089dc0b6f3f8be
MD5 hash: 819efcf6f8669243f3ac2ee6dabc9d8f
humanhash: orange-maine-texas-robert
File name:swift_remittance_copy_inv_30_04_2024_0000000000_pdf.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:252'888 bytes
First seen:2024-05-22 14:59:53 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f10e4da994053bf80c20cee985b32e29 (65 x GuLoader, 9 x RemcosRAT, 6 x QuasarRAT)
ssdeep 3072:liFi6z/VXzAf3ocDmvQEMpvbAGrXX24tfUQsxQlseOcIWNI5FM9eYh3W/SmizUOb:UxFSbDAGrn24tAQPI5FohhISOOb
TLSH T190348CA6F3059CB4D91A03755A7BECB11A53BEBCE460501D24DE3E2F7AB3382446AD07
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon d4d0ccecccd6d4dc (3 x GuLoader, 1 x RemcosRAT)
Reporter abuse_ch
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:Tyngde
Issuer:Tyngde
Algorithm:sha256WithRSAEncryption
Valid from:2024-03-26T08:19:39Z
Valid to:2027-03-26T08:19:39Z
Serial number: 1106226af7a3576bffc0e39555c8047201bdaf7c
Thumbprint Algorithm:SHA256
Thumbprint: 0918e6aec6675b9d1924635f9064a3c9cfab0cbdc6061feae0a93d66c77db350
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
362
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
32acc283188b9c7578a49f288c7adbc7b33a96bb25bcd03057bda02c0f003be8.exe
Verdict:
Malicious activity
Analysis date:
2024-05-22 15:01:12 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/53d3bfe1-557f-4ade-ac86-3c64a974dcb6

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.Malware-gen.7600.19405.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
94.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=664e089a2bd2b41abe0df5c1win7simulatehigh_evasion
Tags:
Encryption Execution Network Static Stealth Agent
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a file in the %AppData% subdirectories
Creating a file in the Windows subdirectories
Delayed reading of the file
Creating a file
Searching for the window
Searching for the Windows task manager window
Running batch commands
Creating a process with a hidden window
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/32acc283188b9c7578a49f288c7adbc7b33a96bb25bcd03057bda02c0f003be8
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/49667702-1621-4800-8543-d07e54bccf0b
Result
Threat name:
GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1445842
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Initial sample is a PE file and has a suspicious name
Mass process execution to delay analysis
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Obfuscated command line found
Sigma detected: New RUN Key Pointing to Suspicious Folder
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1445842 Sample: swift_remittance_copy_inv_3... Startdate: 22/05/2024 Architecture: WINDOWS Score: 100 43 Antivirus detection for dropped file 2->43 45 Antivirus / Scanner detection for submitted sample 2->45 47 Multi AV Scanner detection for dropped file 2->47 49 4 other signatures 2->49 7 swift_remittance_copy_inv_30_04_2024_0000000000_pdf.exe 3 34 2->7         started        process3 file4 33 C:\Users\user\AppData\Local\...\nsExec.dll, PE32 7->33 dropped 35 C:\Users\user\AppData\Local\...\System.dll, PE32 7->35 dropped 51 Obfuscated command line found 7->51 53 Mass process execution to delay analysis 7->53 11 swift_remittance_copy_inv_30_04_2024_0000000000_pdf.exe 1 8 7->11         started        15 cmd.exe 7->15         started        17 cmd.exe 7->17         started        19 62 other processes 7->19 signatures5 process6 dnsIp7 39 94.156.79.233, 80 NET1-ASBG Bulgaria 11->39 41 185.216.70.12, 65131, 80 CLOUDCOMPUTINGDE Germany 11->41 37 C:\Users\user\AppData\Local\...\Kokettens.exe, PE32 11->37 dropped 21 Conhost.exe 15->21         started        23 Conhost.exe 17->23         started        25 Conhost.exe 19->25         started        27 Conhost.exe 19->27         started        29 Conhost.exe 19->29         started        31 59 other processes 19->31 file8 process9
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/32acc283188b9c7578a49f288c7adbc7b33a96bb25bcd03057bda02c0f003be8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/32acc283188b9c7578a49f288c7adbc7b33a96bb25bcd03057bda02c0f003be8/
Threat name:
Win32.Trojan.Guloader
Create hunting rule
Status:
Malicious
First seen:
2024-05-02 12:58:03 UTC
File Type:
PE (Exe)
Extracted files:
6
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=gkwmfayyroohk6fet4uiy6w3y6ztvfv3ew6namcxxwqcydyahpua._file
Verdict:
malicious
Result
Malware family:
n/a
Score:
  7/10
Tags:
persistence
Link:
https://tria.ge/reports/240522-sdaz4afc2t/
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Drops file in Windows directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/3e5ab543-9999-4ee0-97d6-9a1a6d976934
Unpacked files
SH256 hash:
10675f13abaee592f14382349aa35d82fb52aab4e27eef61d0c83dec1f6b73da
MD5 hash:
5aa38904acdcc21a2fb8a1d30a72d92f
SHA1 hash:
a9ce7d1456698921791db91347dba0489918d70c
Link:
https://www.unpac.me/results/e483813d-9450-451a-b7ee-493996cc4e73/
SH256 hash:
c7a20bcaa0197aedddc8e4797bbb33fdf70d980f5e83c203d148121c2106d917
MD5 hash:
792b6f86e296d3904285b2bf67ccd7e0
SHA1 hash:
966b16f84697552747e0ddd19a4ba8ab5083af31
Link:
https://www.unpac.me/results/e483813d-9450-451a-b7ee-493996cc4e73/
SH256 hash:
6afc379db09413c59646e9ca45ac098b578f4fee6010b716f1e09836979931df
MD5 hash:
dcff8de7950c55510edf7249fecfe57e
SHA1 hash:
332fefb8d064eb262a53749c3e0cf762af894917
Link:
https://www.unpac.me/results/e483813d-9450-451a-b7ee-493996cc4e73/
SH256 hash:
32acc283188b9c7578a49f288c7adbc7b33a96bb25bcd03057bda02c0f003be8
MD5 hash:
819efcf6f8669243f3ac2ee6dabc9d8f
SHA1 hash:
7c14a7a4701066ec8c7e4cceba089dc0b6f3f8be
Link:
https://www.unpac.me/results/e483813d-9450-451a-b7ee-493996cc4e73/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.58
Link:
https://yomi.yoroi.company/submissions/32acc283188b9c7578a49f288c7adbc7b33a96bb25bcd03057bda02c0f003be8

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:Ins_NSIS_Buer_Nov_2020_1
Create hunting rule
Author:Arkbird_SOLG
Description:Detect NSIS installer used for Buer loader
Rule name:NSIS_April_2024
Create hunting rule
Author:NDA0N
Description:Detects NSIS installers
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns

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_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User AuthorizationADVAPI32.dll::SetFileSecurityA
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExA
SHELL32.dll::SHFileOperationA
SHELL32.dll::SHGetFileInfoA
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessA
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::LoadLibraryExA
KERNEL32.dll::GetDiskFreeSpaceA
KERNEL32.dll::GetCommandLineA
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileA
KERNEL32.dll::CreateDirectoryA
KERNEL32.dll::CreateFileA
KERNEL32.dll::DeleteFileA
KERNEL32.dll::MoveFileExA
KERNEL32.dll::MoveFileA
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::LookupPrivilegeValueA
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExA
ADVAPI32.dll::RegDeleteKeyA
ADVAPI32.dll::RegOpenKeyExA
ADVAPI32.dll::RegQueryValueExA
ADVAPI32.dll::RegSetValueExA
WIN_USER_APIPerforms GUI ActionsUSER32.dll::AppendMenuA
USER32.dll::EmptyClipboard
USER32.dll::FindWindowExA
USER32.dll::OpenClipboard
USER32.dll::PeekMessageA
USER32.dll::CreateWindowExA

Comments