MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fdb10dd37d214b1e9e4258e601a6b3d7a3d9615513b3e0afaad8d9cc09481087. 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


GOBackdoor


Vendor detections: 11


Intelligence 11 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fdb10dd37d214b1e9e4258e601a6b3d7a3d9615513b3e0afaad8d9cc09481087
SHA3-384 hash: 6d7c6336f0ea48dbe9568e419ba54cc43e8bb96a862a614aea1a233346f8bd8877bd6a62aed3e6f6438f96e279c90ea3
SHA1 hash: 310e490a366e2d55b27417f545e4abd575fad0a3
MD5 hash: b0f4c61f99716127097da80d07ed6123
humanhash: nine-october-october-pluto
File name:reduce.exe
Download: download sample
Signature GOBackdoor
Create hunting rule
File size:18'233'144 bytes
First seen:2024-12-04 22:21:46 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 61876e4043b7e6c5a61a84484ce47785 (1 x GOBackdoor)
ssdeep 196608:Izx+2j3JYwC+dbhxEa9y3BUh6ia+s3RtmMjVA+KPDibr5u5FOW2R:Izx+eYsbhxEp3yQtx3pZA+K+bATOWu
TLSH T1E3078EFBB5228B94C0CEC5B4249797EA9F21BC2C04B6138261DA271F9F76C805D598DF
TrID 56.5% (.EXE) Win64 Executable (generic) (10522/11/4)
11.0% (.ICL) Windows Icons Library (generic) (2059/9)
10.9% (.EXE) OS/2 Executable (generic) (2029/13)
10.7% (.EXE) Generic Win/DOS Executable (2002/3)
10.7% (.EXE) DOS Executable Generic (2000/1)
Magika pebin
File icon (PE):PE icon
dhash icon 04e0e4a4e6e6c6c6 (1 x GOBackdoor)
Reporter smica83
Tags:exe GOBackdoor

Intelligence

File Origin
# of uploads :
1
# of downloads :
465
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
reduce.exe
Verdict:
Malicious activity
Analysis date:
2024-12-04 22:24:55 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/1d643bc9-8819-483d-a8de-143de9c63599

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
90.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6750d60e12e85e185e75eece
Tags:
overt lien remo hype
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
Creating a file in the %temp% directory
Launching a process
Connection attempt
Transferring files using the Background Intelligent Transfer Service (BITS)
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Moving a file to the %AppData% subdirectory
Connection attempt to an infection source
Unauthorized injection to a system process
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
adaptive-context anti-debug borland_delphi fingerprint free_pascal keylogger packed packed packer_detected
Link:
https://www.filescan.io/uploads/6750d60e29e4c5596d33c41f/reports/0416004c-50ec-4487-8e85-4a195d1a47f4/overview
Verdict:
Suspicious
Labled as:
Malware_49.7
Link:
https://www.hybrid-analysis.com/sample/fdb10dd37d214b1e9e4258e601a6b3d7a3d9615513b3e0afaad8d9cc09481087
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/5ace81b2-c094-4611-b2fb-ca33afc40659
Result
Threat name:
GO Backdoor
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1568776
Signature
AI detected suspicious sample
Antivirus detection for dropped file
Found direct / indirect Syscall (likely to bypass EDR)
Found hidden mapped module (file has been removed from disk)
Found Tor onion address
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Writes to foreign memory regions
Yara detected GO Backdoor
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1568776 Sample: reduce.exe Startdate: 04/12/2024 Architecture: WINDOWS Score: 100 38 Suricata IDS alerts for network traffic 2->38 40 Antivirus detection for dropped file 2->40 42 Multi AV Scanner detection for dropped file 2->42 44 3 other signatures 2->44 7 reduce.exe 2 2->7         started        10 Client32.exe 2 2->10         started        process3 signatures4 50 Maps a DLL or memory area into another process 7->50 52 Found direct / indirect Syscall (likely to bypass EDR) 7->52 12 more.com 5 7->12         started        16 more.com 2 10->16         started        process5 file6 28 C:\Users\user\AppData\Local\Temp\kupcq, PE32 12->28 dropped 54 Found Tor onion address 12->54 56 Writes to foreign memory regions 12->56 58 Found hidden mapped module (file has been removed from disk) 12->58 60 Switches to a custom stack to bypass stack traces 12->60 18 msiexec.exe 1 12->18         started        22 conhost.exe 12->22         started        30 C:\Users\user\AppData\Local\Temp\nfabo, PE32 16->30 dropped 24 msiexec.exe 16->24         started        26 conhost.exe 16->26         started        signatures7 process8 dnsIp9 32 185.121.233.152, 28250, 49763 IPCORE-ASES Spain 18->32 34 188.130.206.243, 49744, 80 SVINT-ASNES Russian Federation 18->34 36 4 other IPs or domains 18->36 46 Found Tor onion address 18->46 48 Switches to a custom stack to bypass stack traces 18->48 signatures10
Score:
10%
Verdict:
Benign
File Type:
PE
Link:
https://malprob.io/report/fdb10dd37d214b1e9e4258e601a6b3d7a3d9615513b3e0afaad8d9cc09481087
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/fdb10dd37d214b1e9e4258e601a6b3d7a3d9615513b3e0afaad8d9cc09481087/
Threat name:
Win64.Trojan.Penguish
Create hunting rule
Status:
Malicious
First seen:
2024-12-04 22:22:07 UTC
File Type:
PE+ (Exe)
Extracted files:
378
AV detection:
5 of 24 (20.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7wyq3u35effr5hscldtadjvt26r5sykvcoz6bl5k3dm4yckiccdq._file
Result
Malware family:
n/a
Score:
  6/10
Tags:
discovery
Link:
https://tria.ge/reports/241204-197ypszneq/
Behaviour
GoLang User-Agent
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Blocklisted process makes network request
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/bf2bf827-251b-479c-b05e-d60b3bfd249b
Unpacked files
SH256 hash:
fdb10dd37d214b1e9e4258e601a6b3d7a3d9615513b3e0afaad8d9cc09481087
MD5 hash:
b0f4c61f99716127097da80d07ed6123
SHA1 hash:
310e490a366e2d55b27417f545e4abd575fad0a3
Link:
https://www.unpac.me/results/b60073fa-3ebb-4f5e-9cc2-714b562e20ca/
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/fdb10dd37d214b1e9e4258e601a6b3d7a3d9615513b3e0afaad8d9cc09481087

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:Borland
Create hunting rule
Author:malware-lu
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:RansomPyShield_Antiransomware
Create hunting rule
Author:XiAnzheng
Description:Check for Suspicious String and Import combination that Ransomware mostly abuse(can create FP)
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

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
Reviews
IDCapabilitiesEvidence
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
MULTIMEDIA_APICan Play Multimediagdi32.dll::StretchDIBits
SHELL_APIManipulates System Shellshell32.dll::ShellExecuteA
shell32.dll::SHGetFileInfoW
WIN32_PROCESS_APICan Create Process and Threadskernel32.dll::CreateProcessW
kernel32.dll::CloseHandle
kernel32.dll::CreateThread
WIN_BASE_APIUses Win Base APIkernel32.dll::TerminateProcess
kernel32.dll::LoadLibraryW
kernel32.dll::LoadLibraryA
kernel32.dll::GetSystemInfo
kernel32.dll::GetStartupInfoA
kernel32.dll::GetCommandLineA
kernel32.dll::GetCommandLineW
WIN_BASE_EXEC_APICan Execute other programskernel32.dll::GetConsoleMode
kernel32.dll::GetConsoleOutputCP
kernel32.dll::GetConsoleCP
WIN_BASE_IO_APICan Create Fileskernel32.dll::CreateDirectoryW
kernel32.dll::CreateFileW
kernel32.dll::CreateFileMappingA
kernel32.dll::DeleteFileW
kernel32.dll::GetWindowsDirectoryA
kernel32.dll::GetSystemDirectoryW
WIN_BASE_USER_APIRetrieves Account Informationkernel32.dll::GetComputerNameA
advapi32.dll::GetUserNameA
WIN_REG_APICan Manipulate Windows Registryadvapi32.dll::RegCreateKeyExW
advapi32.dll::RegOpenKeyExW
advapi32.dll::RegQueryValueExW
advapi32.dll::RegSetValueExW
WIN_USER_APIPerforms GUI Actionsuser32.dll::CreateMenu
user32.dll::EmptyClipboard
user32.dll::FindWindowA
user32.dll::OpenClipboard
user32.dll::PeekMessageA
user32.dll::PeekMessageW

Comments