MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bcfeccca08d6a928496477dff6ff4ca59ae61905bfabf878f5a8316776bff6a1. 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


Adware.Generic


Vendor detections: 10


Intelligence 10 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bcfeccca08d6a928496477dff6ff4ca59ae61905bfabf878f5a8316776bff6a1
SHA3-384 hash: b72dfe005c4f932508df5bf05ae56f00d7767165b6507659a291260140b4912516bd4a7e29bd4eb136fcf34b38128e7d
SHA1 hash: e2288c42654830ee0092a8e9b72e731b1ba14950
MD5 hash: 0ee7e353ee5520a2678a005c2a9b7853
humanhash: bulldog-ink-white-muppet
File name:Yiwaiwai Build Version.exe
Download: download sample
Signature Adware.Generic
Create hunting rule
File size:57'120'969 bytes
First seen:2024-07-21 14:51:38 UTC
Last seen:2024-07-21 15:22:42 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash e569e6f445d32ba23766ad67d1e3787f (262 x Adware.Generic, 41 x RecordBreaker, 24 x RedLineStealer)
ssdeep 786432:sMd4J2n8lYg9J6Ppw1QKp9uzh68YvH6525jlWP17/XKV5T47Y1BXi7OOIVxTGurL:stjbOPpbG5jlWRedT6WG61epNzjc
Threatray 1 similar samples on MalwareBazaar
TLSH T1C0C7333FB208262DC49A1F3126B243106A7BBE54BA2B8C1F07F0195DDF665721F3B695
TrID 46.7% (.EXE) Inno Setup installer (107240/4/30)
25.0% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
18.1% (.EXE) Win32 EXE PECompact compressed (generic) (41569/9/9)
4.5% (.EXE) Win64 Executable (generic) (10523/12/4)
1.9% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon ac8e843438b486d0 (1 x Adware.Generic)
Reporter Anonymous
Tags:Adware.Generic exe


Avatar
Anonymous
this malware sample is very nasty!

Intelligence

File Origin
# of uploads :
2
# of downloads :
388
Origin country :
CN CN
Vendor Threat Intelligence
Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=669d209cb302ab76f4482839
Tags:
Generic Network Ransomware Stealth Trojan
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Searching for synchronization primitives
Searching for the window
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
embarcadero_delphi fingerprint installer lolbin overlay packed setupapi shell32
Link:
https://www.filescan.io/uploads/669d209a7b9add553ed8f0d5/reports/679ae004-f373-410e-aa90-6e3b46bd085f/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/bcfeccca08d6a928496477dff6ff4ca59ae61905bfabf878f5a8316776bff6a1
Result
Verdict:
MALICIOUS
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
44 / 100
Link:
https://www.joesandbox.com/analysis/1477567
Signature
AI detected suspicious sample
Antivirus detection for URL or domain
Contains functionality to inject code into remote processes
Contains functionality to inject threads in other processes
Infects executable files (exe, dll, sys, html)
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Uses known network protocols on non-standard ports
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1477567 Sample: Yiwaiwai Build Version.exe Startdate: 21/07/2024 Architecture: WINDOWS Score: 44 46 yww-api-1.ip610.com 2->46 48 www.baidu.com 2->48 50 8 other IPs or domains 2->50 72 Malicious sample detected (through community Yara rule) 2->72 74 Antivirus detection for URL or domain 2->74 76 Multi AV Scanner detection for submitted file 2->76 78 5 other signatures 2->78 10 Yiwaiwai Build Version.exe 2 2->10         started        13 cefsimple.exe 2->13         started        signatures3 process4 file5 34 C:\Users\user\...\Yiwaiwai Build Version.tmp, PE32 10->34 dropped 15 Yiwaiwai Build Version.tmp 37 750 10->15         started        process6 file7 38 C:\ProgramData\...\is-IU92O.tmp, PE32 15->38 dropped 40 C:\ProgramData\...\is-A6A24.tmp, PE32 15->40 dropped 42 C:\ProgramData\...\is-1UOIR.tmp, PE32 15->42 dropped 44 1017 other files (1 malicious) 15->44 dropped 70 Infects executable files (exe, dll, sys, html) 15->70 19 yiwaiwai.exe 49 15->19         started        23 cefsimple.exe 15->23         started        signatures8 process9 dnsIp10 52 hcdnd.ovc.sme.cdnhwccmz121.com 169.197.114.134, 443, 49722, 49723 ZNETUS United States 19->52 54 p_1.sparedns1.com 154.221.25.88, 49715, 49716, 49720 HKKFGL-AS-APHKKwaifongGroupLimitedHK Seychelles 19->54 60 2 other IPs or domains 19->60 32 C:\ProgramData\...\setup.exe, PE32 19->32 dropped 25 setup.exe 3 19->25         started        56 120.230.21.165, 49155, 49730 CMNET-GUANGDONG-APChinaMobilecommunicationscorporation China 23->56 58 120.232.246.131, 49155, 49714 CMNET-GUANGDONG-APChinaMobilecommunicationscorporation China 23->58 62 2 other IPs or domains 23->62 file11 process12 dnsIp13 64 overseacdndownload.qiniu.com.w.kunlunea.com 47.246.46.225, 49731, 80 TAOBAOZhejiangTaobaoNetworkCoLtdCN United States 25->64 36 C:\ProgramData\...\yiwaiwai.exe, PE32 25->36 dropped 29 yiwaiwai.exe 25->29         started        file14 process15 dnsIp16 66 90.84.161.14, 49738, 80 OPENTRANSITFR France 29->66 68 103.235.46.96, 49734, 80 BAIDUBeijingBaiduNetcomScienceandTechnologyCoLtd Hong Kong 29->68
Score:
46%
Verdict:
Susipicious
File Type:
PE
Link:
https://malprob.io/report/bcfeccca08d6a928496477dff6ff4ca59ae61905bfabf878f5a8316776bff6a1
Gathering data
Threat name:
Win32.Exploit.DonutMarte
Create hunting rule
Status:
Malicious
First seen:
2024-07-21 14:52:13 UTC
File Type:
PE (Exe)
Extracted files:
21789
AV detection:
12 of 24 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xt7mzsqi22usqsleo7p7n72muwnomgifx6v7q6hvvaywo5v762qq._file
Verdict:
malicious
Similar samples:
13fd816b66d889eaeae5e0d0a44b008851697e5ae9246c3fd95fc3cfcb157582
Adware.Generic
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/240721-r8qhlateqh/
Behaviour
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of WriteProcessMemory
Executes dropped EXE
Loads dropped DLL
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/d6d913f8-80ce-4666-aabd-e9e9deb8cc3c
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:Borland
Create hunting rule
Author:malware-lu
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.

Malspam

Adware.Generic

Executable exe bcfeccca08d6a928496477dff6ff4ca59ae61905bfabf878f5a8316776bff6a1

(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
AUTH_APIManipulates User Authorizationadvapi32.dll::ConvertSidToStringSidW
advapi32.dll::ConvertStringSecurityDescriptorToSecurityDescriptorW
SECURITY_BASE_APIUses Security Base APIadvapi32.dll::AdjustTokenPrivileges
advapi32.dll::GetTokenInformation
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::LoadLibraryA
kernel32.dll::LoadLibraryExW
kernel32.dll::LoadLibraryW
kernel32.dll::GetSystemInfo
kernel32.dll::GetStartupInfoW
kernel32.dll::GetDiskFreeSpaceW
WIN_BASE_IO_APICan Create Fileskernel32.dll::CreateDirectoryW
kernel32.dll::CreateFileW
kernel32.dll::DeleteFileW
kernel32.dll::GetWindowsDirectoryW
kernel32.dll::GetSystemDirectoryW
kernel32.dll::GetFileAttributesW
WIN_BASE_USER_APIRetrieves Account Informationadvapi32.dll::LookupPrivilegeValueW
WIN_REG_APICan Manipulate Windows Registryadvapi32.dll::RegOpenKeyExW
advapi32.dll::RegQueryValueExW
WIN_USER_APIPerforms GUI Actionsuser32.dll::PeekMessageW
user32.dll::CreateWindowExW

Comments