MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1b159fa01a8af6dc08e1e371203362f5a9ba4cf4128c3c234f1e53d492ee0eab. 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: 14


Intelligence 14 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1b159fa01a8af6dc08e1e371203362f5a9ba4cf4128c3c234f1e53d492ee0eab
SHA3-384 hash: f157dca1632c94d235ffd4699e1271e97b47251cf6f7ddb66b88104c0824690e6540227c98bba37d9c271ae6acdd5173
SHA1 hash: c80d949197d3bdea98fd7c5fd22cb6006852d37b
MD5 hash: 669e3dfadd63835b7602e41a26986afc
humanhash: minnesota-zulu-colorado-avocado
File name:PI 070824.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:799'080 bytes
First seen:2024-07-09 05:59:30 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 076b06e6a65c9b7cca5a61be0cd82165 (51 x GuLoader, 4 x AgentTesla, 4 x Formbook)
ssdeep 12288:eaHefBDiWJp/hhJeUit8pjs0p1vxM/r9RKGqHmIdD+:VwBPpbJeNt2Y0xMz9RKHHF9
Threatray 2'742 similar samples on MalwareBazaar
TLSH T12005C6B12531C0CAF9AA0DF1DF6E2461359332ACA4495B2DA4D73F1C468AFF1406EB5E
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 e09cb28ab2b68ed0 (7 x GuLoader, 1 x Loki, 1 x AgentTesla)
Reporter cocaman
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:Ekstraopgavens
Issuer:Ekstraopgavens
Algorithm:sha256WithRSAEncryption
Valid from:2024-05-31T10:59:26Z
Valid to:2027-05-31T10:59:26Z
Serial number: 613f2d8d43a180b5266b512b7ba6bcf0130d62e6
Thumbprint Algorithm:SHA256
Thumbprint: 9912680f13a7a661e18e11333b193b8e645d36e78ca1f6f3351846563ff2c7f0
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
362
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
1b159fa01a8af6dc08e1e371203362f5a9ba4cf4128c3c234f1e53d492ee0eab.exe
Verdict:
Malicious activity
Analysis date:
2024-07-09 06:24:21 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/5472358c-c03b-4027-9008-91f182d5ee00

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.NSIS.MalwareX-gen.29900.9084.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
90.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=668cd1e6d6caced36c82d9d2win7simulatehigh_evasion
Tags:
Encryption Execution Network Static Stealth Malware
Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file
Searching for the window
Creating a file in the %temp% subdirectories
Delayed reading of the file
Searching for the Windows task manager window
Running batch commands
Creating a process with a hidden window
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/1b159fa01a8af6dc08e1e371203362f5a9ba4cf4128c3c234f1e53d492ee0eab
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:
Unknown
Link:
https://analyze.intezer.com/analyses/9397a2e4-bf7d-4ae4-baca-a03d468c4b1b
Result
Threat name:
GuLoader, FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1469759
Signature
Antivirus / Scanner detection for submitted sample
Found direct / indirect Syscall (likely to bypass EDR)
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Mass process execution to delay analysis
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Obfuscated command line found
Queues an APC in another process (thread injection)
Switches to a custom stack to bypass stack traces
Yara detected FormBook
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1469759 Sample: PI 070824.exe Startdate: 09/07/2024 Architecture: WINDOWS Score: 100 48 drive.usercontent.google.com 2->48 50 drive.google.com 2->50 56 Malicious sample detected (through community Yara rule) 2->56 58 Antivirus / Scanner detection for submitted sample 2->58 60 Multi AV Scanner detection for submitted file 2->60 62 5 other signatures 2->62 10 PI 070824.exe 4 44 2->10         started        signatures3 process4 file5 44 C:\Users\user\AppData\Local\...\nsExec.dll, PE32 10->44 dropped 46 C:\Users\user\AppData\Local\...\System.dll, PE32 10->46 dropped 72 Obfuscated command line found 10->72 14 PI 070824.exe 6 10->14         started        18 cmd.exe 10->18         started        20 cmd.exe 10->20         started        22 62 other processes 10->22 signatures6 process7 dnsIp8 52 drive.google.com 142.250.105.101, 443, 49774 GOOGLEUS United States 14->52 54 drive.usercontent.google.com 172.253.124.132, 443, 49775 GOOGLEUS United States 14->54 74 Modifies the context of a thread in another process (thread injection) 14->74 76 Maps a DLL or memory area into another process 14->76 78 Queues an APC in another process (thread injection) 14->78 80 Found direct / indirect Syscall (likely to bypass EDR) 14->80 24 RAVCpl64.exe 14->24 injected 27 Conhost.exe 18->27         started        29 Conhost.exe 20->29         started        31 Conhost.exe 22->31         started        33 Conhost.exe 22->33         started        35 Conhost.exe 22->35         started        37 59 other processes 22->37 signatures9 process10 signatures11 70 Found direct / indirect Syscall (likely to bypass EDR) 24->70 39 mtstocom.exe 24->39         started        process12 signatures13 64 Modifies the context of a thread in another process (thread injection) 39->64 66 Maps a DLL or memory area into another process 39->66 68 Switches to a custom stack to bypass stack traces 39->68 42 explorer.exe 39->42 injected process14
Score:
98%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/1b159fa01a8af6dc08e1e371203362f5a9ba4cf4128c3c234f1e53d492ee0eab
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1b159fa01a8af6dc08e1e371203362f5a9ba4cf4128c3c234f1e53d492ee0eab/
Threat name:
Win32.Trojan.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2024-07-08 15:14:58 UTC
File Type:
PE (Exe)
Extracted files:
10
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=dmkz7ia2rl3nychb4nysam3c6wu3uthuckgdyi2pdzj5jexob2vq._file
Verdict:
malicious
Similar samples:
0cb6636748ff6a60ebf1a4644a7b4c877f8a19edd8c7a2eac10b34d1bd7cbfbf
GuLoader
199bd66bf9f7b299ebf9068feb2e8648404097e26f86cabc5462973769d24df5
GuLoader
1eda1b310543e616e8b7b97e8e5f13597fb3a67ed9658b3daba2f49361563689
GuLoader
482f10e5f1825368c6cdacf482febf39ed6d035ce866aded813d18890cf86dca
GuLoader
657a48043a872f3b614e4d7b335d71dea8b72c8292cb2cab1f2e67b2fc1b3c47
GuLoader
9ffd17a68654d3474794940762417fe1bc39a5ea87ce5877daa135ac783273e8
GuLoader
ea3c63e01dc18acb8940dbbe5bec6c3cdcb6c117b6a213b9e7e02c11caeabee0
GuLoader
ef66ea0bcee19ccd3d2771a170ff218a3e43b27f1b18f24e08685cb4d3fe053a
GuLoader
f2a42302b9c4f3e6c1e2e5d15dfa09cb41aad80ebc13678c4a412f77d4141ca0
GuLoader
+ 2'732 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/240709-gqblls1gld/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Legitimate hosting services abused for malware hosting/C2
Loads dropped DLL
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/0ffc81a4-aff0-4c99-bf96-bd98290f470c
Unpacked files
SH256 hash:
1c2f19e57dc72587aa00800a498c5f581b7d6761dc13b24bcf287ea7bd5ca2bf
MD5 hash:
3eb4cd50dcb9f5981f5408578cb7fb70
SHA1 hash:
13b38cc104ba6ee22dc4dfa6e480e36587f4bc71
Detections:
win_flawedammyy_auto
Create hunting rule
Link:
https://www.unpac.me/results/bcc62e98-d491-4232-9734-26044a487060/
Parent samples :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 hash:
fda0018ab182ac6025d2fc9a2efcce3745d1da21ce5141859f8286cf319a52ce
MD5 hash:
4d3b19a81bd51f8ce44b93643a4e3a99
SHA1 hash:
35f8b00e85577b014080df98bd2c378351d9b3e9
Link:
https://www.unpac.me/results/bcc62e98-d491-4232-9734-26044a487060/
SH256 hash:
d662734b01f2d40036d5b6d002621080d3219dfa75a9d56c0489765d38dbc5c2
MD5 hash:
86ca6393eafd76d752dd54ea2f30bd1b
SHA1 hash:
16d978ea8e6460b1e1ea91a031449b864ea538d8
Link:
https://www.unpac.me/results/bcc62e98-d491-4232-9734-26044a487060/
SH256 hash:
ea60f14cbd764de7259f8f5a8f64093c8a4940c46a1a5153b6f42fe019a2297c
MD5 hash:
efec1affbb89c110ad32aa350437f5d7
SHA1 hash:
1dc7bf27ad34dc73813e27cbd63d5853fa196edf
Detections:
win_flawedammyy_auto
Create hunting rule
Link:
https://www.unpac.me/results/bcc62e98-d491-4232-9734-26044a487060/
Parent samples :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 hash:
1b159fa01a8af6dc08e1e371203362f5a9ba4cf4128c3c234f1e53d492ee0eab
MD5 hash:
669e3dfadd63835b7602e41a26986afc
SHA1 hash:
c80d949197d3bdea98fd7c5fd22cb6006852d37b
Link:
https://www.unpac.me/results/bcc62e98-d491-4232-9734-26044a487060/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.77
Link:
https://yomi.yoroi.company/submissions/1b159fa01a8af6dc08e1e371203362f5a9ba4cf4128c3c234f1e53d492ee0eab

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:Detect_SliverFox_String
Create hunting rule
Author:huoji
Description:Detect files is `SliverFox` malware
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

r00 9d32ca448100320763398231b87fd93f04057fdcc38106212035100384188057

GuLoader

Executable exe 1b159fa01a8af6dc08e1e371203362f5a9ba4cf4128c3c234f1e53d492ee0eab

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 9d32ca448100320763398231b87fd93f04057fdcc38106212035100384188057
  
Dropped by
MD5 4692a6f1b36c8ea1f3d240d7a17c316a

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::ShellExecuteA
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::LoadLibraryA
KERNEL32.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

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