MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 987471722e435693fa54d926572c304cc37a9a7b89845264e5872cdf7eed4447. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 987471722e435693fa54d926572c304cc37a9a7b89845264e5872cdf7eed4447
SHA3-384 hash: 4f54eea57c5f6a07d33694f38d78e52c7448abc3dba4cc9ef390149f4e7aea26b9db1c123e248808ceff194faf18fb3f
SHA1 hash: eb435bd48c0f00f64f5a0c040b807516ed3abeaf
MD5 hash: 0e59a969ac65cce1bf6a5169abfabbcf
humanhash: five-green-india-alabama
File name:0e59a969ac65cce1bf6a5169abfabbcf.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:723'968 bytes
First seen:2024-03-22 07:36:17 UTC
Last seen:2024-03-22 09:25:49 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 4f67aeda01a0484282e8c59006b0b352 (51 x GuLoader, 9 x RemcosRAT, 9 x VIPKeylogger)
ssdeep 12288:4o5vFoW7i8xJwfwLO9z+79FPZEA03ZenKK:4ojbxO4LUz+79YAGUN
Threatray 94 similar samples on MalwareBazaar
TLSH T1B6F47AFE6C64B59AFE39C2F926448974A7162D15F4103276A27C32DBC9BA89143C7C0F
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 827169697979b1b1 (5 x GuLoader, 1 x Formbook)
Reporter abuse_ch
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:Underkastedes
Issuer:Underkastedes
Algorithm:sha256WithRSAEncryption
Valid from:2024-01-21T02:52:08Z
Valid to:2027-01-20T02:52:08Z
Serial number: 7d6cf7460a95056a4cd90f6705f7bd3723fc8f91
Thumbprint Algorithm:SHA256
Thumbprint: 158fd0fc169952537086040b24bb761c912ec78bba30063d017fb2a69b519039
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
335
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
987471722e435693fa54d926572c304cc37a9a7b89845264e5872cdf7eed4447.exe
Verdict:
Malicious activity
Analysis date:
2024-03-22 08:04:17 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/63ae2eb6-8bc7-4bb4-b15c-a0857c66760a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a file in the %AppData% subdirectories
Creating a file
Launching a process
Moving a file to the Program Files subdirectory
Replacing files
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
installer lolbin overlay packed shell32
Link:
https://www.filescan.io/uploads/65fd35235cd908a33dbc9d7b/reports/e2b48239-03ed-49ea-96f0-4349c3baa9ed/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/987471722e435693fa54d926572c304cc37a9a7b89845264e5872cdf7eed4447
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/ed292667-f7cf-4123-9216-703430be5e5a
Result
Threat name:
GuLoader, FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1413923
Signature
Antivirus detection for URL or domain
Found direct / indirect Syscall (likely to bypass EDR)
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected FormBook
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1413923 Sample: ccWXalS8xg.exe Startdate: 22/03/2024 Architecture: WINDOWS Score: 100 35 www.eh28mf3cdv.xyz 2->35 37 zopter.dev 2->37 39 28 other IPs or domains 2->39 53 Snort IDS alert for network traffic 2->53 55 Malicious sample detected (through community Yara rule) 2->55 57 Antivirus detection for URL or domain 2->57 61 3 other signatures 2->61 10 ccWXalS8xg.exe 7 46 2->10         started        signatures3 59 Performs DNS queries to domains with low reputation 35->59 process4 file5 29 C:\Users\user\AppData\Roaming\...behaviorgraphravure.Typ, data 10->29 dropped 31 C:\Users\user\AppData\Local\...\nsq2AE3.tmp, data 10->31 dropped 33 C:\Users\user\AppData\Local\...\System.dll, PE32 10->33 dropped 13 ccWXalS8xg.exe 6 10->13         started        process6 dnsIp7 47 drive.usercontent.google.com 142.250.72.97, 443, 49805 GOOGLEUS United States 13->47 49 drive.google.com 142.250.80.110, 443, 49804 GOOGLEUS United States 13->49 73 Maps a DLL or memory area into another process 13->73 17 PgeIPZiKTennkMsCPMBbOfLq.exe 13->17 injected signatures8 process9 signatures10 51 Found direct / indirect Syscall (likely to bypass EDR) 17->51 20 finger.exe 13 17->20         started        process11 signatures12 63 Tries to steal Mail credentials (via file / registry access) 20->63 65 Tries to harvest and steal browser information (history, passwords, etc) 20->65 67 Writes to foreign memory regions 20->67 69 3 other signatures 20->69 23 PgeIPZiKTennkMsCPMBbOfLq.exe 20->23 injected 27 firefox.exe 20->27         started        process13 dnsIp14 41 www.deniztemiz.fun 46.28.105.2, 49831, 49832, 49833 WEDOSCZ Czech Republic 23->41 43 xiaoyue.zhuangkou.com 47.76.88.64, 49807, 49808, 49809 VODAFONE-TRANSIT-ASVodafoneNZLtdNZ United States 23->43 45 14 other IPs or domains 23->45 71 Found direct / indirect Syscall (likely to bypass EDR) 23->71 signatures15
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/987471722e435693fa54d926572c304cc37a9a7b89845264e5872cdf7eed4447
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/987471722e435693fa54d926572c304cc37a9a7b89845264e5872cdf7eed4447/
Threat name:
Win32.Trojan.Guloader
Create hunting rule
Status:
Suspicious
First seen:
2024-03-22 07:37:07 UTC
File Type:
PE (Exe)
Extracted files:
7
AV detection:
12 of 24 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=tb2hc4roinljh6su3etfolbqjtbxvgt3rgcfezhfq4wn67xnirdq._file
Verdict:
malicious
Label(s):
cloudeye
Create hunting rule
Similar samples:
37950119cdd0165154841c1fa0803dacccb63012561ea77cb11a787e2c0fa588
GuLoader
4a8c0dd0c6da83ad99348d43a8afc6b5a0f45917fc78d9c101226a8c1f8e149a
GuLoader
7568630cd7cff7c99567be892986482a9f3fe5a41d03f504cf447b831e999046
GuLoader
9e6c23f4e7d05527dc0e8199eadb9c3dc3ed4299df9bc7591d967b02165e9130
GuLoader
c44904bfb8b44d8071f33359f824028597145f76bd1a6baf86d91679215e3c7d
GuLoader
c5663a58153d79aeb1ed3cfcc7f87bddaa1952dfe536507eb95c0920b484742e
GuLoader
cfa3c71c41d7a69fdfa223a92ec677067613c69b2b2627d760cda587725bfbf0
GuLoader
d684ff8578143c9ada565e08e1ac0204a5fd50c21bb27d206a96326381e0619c
GuLoader
+ 84 additional samples on MalwareBazaar
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:guloader downloader
Link:
https://tria.ge/reports/240322-jftesacb4s/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
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
Guloader,Cloudeye
Unpacked files
SH256 hash:
fa4ab1d6f79fd677433a31ada7806373a789d34328da46ccb0449bbf347bd73e
MD5 hash:
3f176d1ee13b0d7d6bd92e1c7a0b9bae
SHA1 hash:
fe582246792774c2c9dd15639ffa0aca90d6fd0b
Link:
https://www.unpac.me/results/04f89646-1449-4287-a978-1ae8385f1fba/
SH256 hash:
987471722e435693fa54d926572c304cc37a9a7b89845264e5872cdf7eed4447
MD5 hash:
0e59a969ac65cce1bf6a5169abfabbcf
SHA1 hash:
eb435bd48c0f00f64f5a0c040b807516ed3abeaf
Link:
https://www.unpac.me/results/04f89646-1449-4287-a978-1ae8385f1fba/
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/987471722e435693fa54d926572c304cc37a9a7b89845264e5872cdf7eed4447

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:Ins_NSIS_Buer_Nov_2020_1
Create hunting rule
Author:Arkbird_SOLG
Description:Detect NSIS installer used for Buer loader
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.

Web download

GuLoader

Executable exe 987471722e435693fa54d926572c304cc37a9a7b89845264e5872cdf7eed4447

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2789071/
  
Delivery method
Distributed via web download

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::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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