MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 393f30348ea8776aa8d647b548afb06f03a56b5b212c5eaae7f306121cf3b57e. 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: 11


Intelligence 11 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 393f30348ea8776aa8d647b548afb06f03a56b5b212c5eaae7f306121cf3b57e
SHA3-384 hash: c447d8314560a49dfb9a802d61b17011a4094b3c6c670a00b28025999052f1e496b900b85dee8b004e69154ac00bf6b2
SHA1 hash: 180cce903488f428331520ee888099f85cefb7d1
MD5 hash: 5b29ae0de7ee5d13260889086c2a4d7c
humanhash: echo-purple-kansas-ceiling
File name:LisectAVT_2403002A_41.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:617'241 bytes
First seen:2024-07-25 00:31:03 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash b34f154ec913d2d2c435cbd644e91687 (541 x GuLoader, 116 x RemcosRAT, 80 x EpsilonStealer)
ssdeep 12288:mhFOB5zdpq8vHQDORZZXQZiOSXS2XLTbWr7Fx8bg4hbTtR:mhFKtdpq8vQiFXQfp+Wr7cXFTt
Threatray 530 similar samples on MalwareBazaar
TLSH T1CDD4238AB584D072DDB5A1B0D87F863ACAF4B8685780593E33907F1EBCE3252354DE61
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)
Reporter Anonymous
Tags:exe GuLoader


Avatar
Anonymous
this malware sample is very nasty!

Intelligence

File Origin
# of uploads :
1
# of downloads :
65
Origin country :
CN CN
Vendor Threat Intelligence
Verdict:
Malicious
Score:
90.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66a19ce0cb3d02fa0e4994e3
Tags:
Encryption Static Injector
Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file
Creating a file in the %temp% subdirectories
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
installer lolbin microsoft_visual_cc overlay packed shell32
Link:
https://www.filescan.io/uploads/66a19cd5b45fbebc0edbb116/reports/530a547d-843f-4b25-b801-c608e00aa64d/overview
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.
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/53512048-806b-42d2-a234-d08582e4608f
Result
Threat name:
GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1482272
Behaviour
Behavior Graph:
n/a
Score:
98%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/393f30348ea8776aa8d647b548afb06f03a56b5b212c5eaae7f306121cf3b57e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/393f30348ea8776aa8d647b548afb06f03a56b5b212c5eaae7f306121cf3b57e/
Threat name:
Win32.Trojan.Guloader
Create hunting rule
Status:
Malicious
First seen:
2024-07-25 00:32:08 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=he7taneovb3wvkgwi62url5qn4b2k223eewf5kxh6mdbehhtwv7a._file
Verdict:
malicious
Label(s):
cloudeye
Create hunting rule
Similar samples:
0b145928bcccd1f9510ef2744ef2487a38cdcdcc6b8595995c491c29f97f55e9
GuLoader
23bdbcc94a910fc7a4873ba666aa18404017514df95a9b1266d3aa233663c3ee
GuLoader
296d3276af7f064b6e29fd453f3273c4fbf7d47d5afa4a2ecb80b594467d85df
GuLoader
b55c1221a5a347fbbb9c80a65e2904fa915c6cf2553c742643ef0a4d4261059d
GuLoader
c036bf9593241c5ba0f2a7d38b6ff8099344e4b17a758ff64b145f2329256415
GuLoader
c202341f6d54b9b2bc6ee1c53e51260a0adf11a81f9a509429f9039ef1d00600
GuLoader
f7be02f5ceebf889ff98f83f55c9de2b825229952abc034529223641d8ff3e31
GuLoader
f8ab9380a4f535f1c19ca3e0da58f9dccf058895a2725ef3b10f02567ec68b28
GuLoader
+ 520 additional samples on MalwareBazaar
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:guloader discovery downloader
Link:
https://tria.ge/reports/240725-at6slawhjl/
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Loads dropped DLL
Guloader,Cloudeye
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/b004319c-8227-440c-95a6-4a9ab9217539
Unpacked files
SH256 hash:
f004c568d305cd95edbd704166fcd2849d395b595dff814bcc2012693527ac37
MD5 hash:
8b3830b9dbf87f84ddd3b26645fed3a0
SHA1 hash:
223bef1f19e644a610a0877d01eadc9e28299509
Link:
https://www.unpac.me/results/c9bf83bc-a753-4af6-ade0-c9f3f282f186/
SH256 hash:
393f30348ea8776aa8d647b548afb06f03a56b5b212c5eaae7f306121cf3b57e
MD5 hash:
5b29ae0de7ee5d13260889086c2a4d7c
SHA1 hash:
180cce903488f428331520ee888099f85cefb7d1
Link:
https://www.unpac.me/results/c9bf83bc-a753-4af6-ade0-c9f3f282f186/
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:NSIS_April_2024
Create hunting rule
Author:NDA0N
Description:Detects NSIS installers
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

GuLoader

Executable exe 393f30348ea8776aa8d647b548afb06f03a56b5b212c5eaae7f306121cf3b57e

(this sample)

  
Link
https://bbs.kafan.cn/forum-31-1.html
  
Delivery method
Distributed via e-mail attachment

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
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
ADVAPI32.dll::SetFileSecurityW
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExW
SHELL32.dll::SHFileOperationW
SHELL32.dll::SHGetFileInfoW
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessW
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetDiskFreeSpaceW
KERNEL32.dll::GetCommandLineW
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::MoveFileExW
KERNEL32.dll::MoveFileW
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::LookupPrivilegeValueW
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::AppendMenuW
USER32.dll::EmptyClipboard
USER32.dll::FindWindowExW
USER32.dll::OpenClipboard
USER32.dll::PeekMessageW
USER32.dll::CreateWindowExW

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