MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cc5bb638cb34cbd386a906b7708eb62e05e3fc991a20bd060e1d84f722d29ff1. 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



SystemBC


Vendor detections: 19


Intelligence 19 IOCs YARA 7 File information Comments

SHA256 hash: cc5bb638cb34cbd386a906b7708eb62e05e3fc991a20bd060e1d84f722d29ff1
SHA3-384 hash: 985dd12ad4c3c6471abfa8c54124bb005cf5d7817dcb4ef8c0b041cc249d198b6d99dac5ce6b40cd1b984a266c3e5ec0
SHA1 hash: 8a5a47e39a9efa9dc4de447d2ae4cd5e375e3557
MD5 hash: c661a77c31f83c413a96b5537ad31989
humanhash: zebra-wisconsin-alanine-zebra
File name:cc5bb638cb34cbd386a906b7708eb62e05e3fc991a20bd060e1d84f722d29ff1
Download: download sample
Signature SystemBC
File size:16'384 bytes
First seen:2024-06-04 10:40:08 UTC
Last seen:2024-06-04 11:39:25 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b83b4c7be0b1cdd8e117bba9096d9768 (8 x SystemBC)
ssdeep 384:rC+AHNZw/WnlrobdglGbLMoy+yG+yir1dV:r0gklrydgQP1yO67V
TLSH T18E72FAA7346188A9C411CAF43E6FA660D47D747652349039EFE04E18377EAE3E712B17
TrID 52.5% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
17.7% (.EXE) Win64 Executable (generic) (10523/12/4)
8.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.5% (.EXE) Win32 Executable (generic) (4504/4/1)
3.4% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter JAMESWT_WT
Tags:185-43-220-45 exe SystemBC

Intelligence


File Origin
# of uploads :
2
# of downloads :
340
Origin country :
IT IT
Vendor Threat Intelligence
Malware family:
systembc
ID:
1
File name:
cc5bb638cb34cbd386a906b7708eb62e05e3fc991a20bd060e1d84f722d29ff1.exe
Verdict:
Malicious activity
Analysis date:
2024-06-04 10:44:26 UTC
Tags:
systembc

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
98.2%
Tags:
Network Stealth Coroxy
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
Creating a file
Creating a process from a recently created file
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
coroxy evasive lolbin masm shell32 systembc
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.
Result
Threat name:
SystemBC
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Signature
AI detected suspicious sample
C2 URLs / IPs found in malware configuration
Found evasive API chain (may stop execution after checking mutex)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queries the IP of a very long domain name
Send many emails (e-Mail Spam)
Snort IDS alert for network traffic
Tries to detect virtualization through RDTSC time measurements
Tries to resolve many domain names, but no domain seems valid
Yara detected SystemBC
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Coroxy
Status:
Malicious
First seen:
2024-06-04 04:32:00 UTC
File Type:
PE (Exe)
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Verdict:
malicious
Result
Malware family:
systembc
Score:
  10/10
Tags:
family:systembc trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Drops file in Windows directory
Executes dropped EXE
SystemBC
Malware Config
C2 Extraction:
clwtumberaero.cyou:4001
185.43.220.45:4001
Unpacked files
SH256 hash:
cc5bb638cb34cbd386a906b7708eb62e05e3fc991a20bd060e1d84f722d29ff1
MD5 hash:
c661a77c31f83c413a96b5537ad31989
SHA1 hash:
8a5a47e39a9efa9dc4de447d2ae4cd5e375e3557
Detections:
SystemBC win_systembc_g1 EXT_MAL_SystemBC_Mar22_1 win_systembc_20220311
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:command_and_control
Author:CD_R0M_
Description:This rule searches for common strings found by malware using C2. Based on a sample used by a Ransomware group
Rule name:EXT_MAL_SystemBC_Mar22_1
Author:Thomas Barabosch, Deutsche Telekom Security
Description:Detects unpacked SystemBC module as used by Emotet in March 2022
Reference:https://twitter.com/Cryptolaemus1/status/1502069552246575105
Rule name:maldoc_find_kernel32_base_method_1
Author:Didier Stevens (https://DidierStevens.com)
Rule name:meth_peb_parsing
Author:Willi Ballenthin
Rule name:Start2_net_bin
Author:James_inthe_box
Description:SystemBC
Reference:7bd341488dc6f01a6662ac478d67d3cd8211cbf362994355027b5bdf573cc31e
Rule name:Start2_overlap_bin
Author:James_inthe_box
Description:SystemBC
Reference:7bd341488dc6f01a6662ac478d67d3cd8211cbf362994355027b5bdf573cc31e
Rule name:Start2__bin
Author:James_inthe_box
Description:SystemBC
Reference:7bd341488dc6f01a6662ac478d67d3cd8211cbf362994355027b5bdf573cc31e

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
AUTH_APIManipulates User Authorizationadvapi32.dll::GetSidSubAuthority
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
SECURITY_BASE_APIUses Security Base APIadvapi32.dll::GetTokenInformation
SS_APIUses SS APIsecur32.dll::AcquireCredentialsHandleA
secur32.dll::DecryptMessage
secur32.dll::DeleteSecurityContext
secur32.dll::QueryContextAttributesA
WIN32_PROCESS_APICan Create Process and Threadskernel32.dll::OpenProcess
advapi32.dll::OpenProcessToken
kernel32.dll::CloseHandle
kernel32.dll::CreateThread
WIN_BASE_APIUses Win Base APIkernel32.dll::GetVolumeInformationA
kernel32.dll::GetCommandLineW
WIN_BASE_IO_APICan Create Fileskernel32.dll::CopyFileA
kernel32.dll::CreateDirectoryA
kernel32.dll::CreateFileA
kernel32.dll::DeleteFileA
kernel32.dll::RemoveDirectoryA
kernel32.dll::GetTempPathA
WIN_BASE_USER_APIRetrieves Account Informationadvapi32.dll::GetUserNameW
WIN_SOCK_APIUses Network to send and receive dataws2_32.dll::freeaddrinfo
ws2_32.dll::getaddrinfo
ws2_32.dll::WSAIoctl
WIN_USER_APIPerforms GUI Actionsuser32.dll::CreateWindowExA

Comments