MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9b61ab1b854861a9e98bc354da2b104c277c97fd758e39a24c382a9b06e29bc9. 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: 15


Intelligence 15 IOCs YARA 6 File information Comments

SHA256 hash: 9b61ab1b854861a9e98bc354da2b104c277c97fd758e39a24c382a9b06e29bc9
SHA3-384 hash: 06f236010af79a24098dbe85edb442def0913f160689a8b94793156e3f8840d4f4021e53162b49b172f69dadc8f9ecf1
SHA1 hash: 793029f350ebf293cd693ac271cfec186a8c78d3
MD5 hash: 250ed5825f166ce3037408aad1279687
humanhash: freddie-hamper-fruit-kitten
File name:file
Download: download sample
Signature SystemBC
File size:683'008 bytes
First seen:2024-01-30 04:01:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:J/Zk1CgV+UToXzeXuXlMgtkLvqt0RzhElivS5eqxQ6MgoxhkB:J/ZQCtUToXzQolMg70RziYvBjHDxh
TLSH T1EBE4123927CC9F37D7ACEB7992F110E80B7EC2637022D7525904A8F72AE2399450759B
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter jstrosch
Tags:.NET exe MSIL SystemBC


Avatar
jstrosch
Found at hxxp://69.10.60[.]115/gplmpn/Irwilkn.exe by #subcrawl

Intelligence


File Origin
# of uploads :
1
# of downloads :
306
Origin country :
US US
Vendor Threat Intelligence
Malware family:
systembc
ID:
1
File name:
9b61ab1b854861a9e98bc354da2b104c277c97fd758e39a24c382a9b06e29bc9.exe
Verdict:
Malicious activity
Analysis date:
2024-01-30 04:04:26 UTC
Tags:
systembc proxy botnet opendir loader

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

Behaviour
Searching for the window
Sending a custom TCP request
Creating a file in the %AppData% directory
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Sending a TCP request to an infection source
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
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:
PureLog Stealer, SystemBC
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
Creates an autostart registry key pointing to binary in C:\Windows
Creates autostart registry keys with suspicious values (likely registry only malware)
Creates multiple autostart registry keys
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: New RUN Key Pointing to Suspicious Folder
Sigma detected: Suspicious Process Patterns NTDS.DIT Exfil
Suspicious powershell command line found
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected Costura Assembly Loader
Yara detected PureLog Stealer
Yara detected SystemBC
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1383121 Sample: file.exe Startdate: 30/01/2024 Architecture: WINDOWS Score: 100 57 Found malware configuration 2->57 59 Malicious sample detected (through community Yara rule) 2->59 61 Multi AV Scanner detection for dropped file 2->61 63 12 other signatures 2->63 7 fmwmw.exe 1 4 2->7         started        11 file.exe 1 5 2->11         started        13 Lguuiwpcnd.exe 5 2->13         started        15 3 other processes 2->15 process3 file4 45 C:\Windows\SysWOW64\config\...\Lguuiwpcnd.exe, PE32 7->45 dropped 69 Multi AV Scanner detection for dropped file 7->69 71 Machine Learning detection for dropped file 7->71 73 Creates multiple autostart registry keys 7->73 75 Creates an autostart registry key pointing to binary in C:\Windows 7->75 17 fmwmw.exe 7->17         started        47 C:\Users\user\AppData\...\Lguuiwpcnd.exe, PE32 11->47 dropped 77 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 11->77 79 Tries to detect virtualization through RDTSC time measurements 11->79 81 Injects a PE file into a foreign processes 11->81 20 file.exe 1 2 11->20         started        24 Lguuiwpcnd.exe 13->24         started        26 file.exe 15->26         started        28 file.exe 4 15->28         started        30 Lguuiwpcnd.exe 15->30         started        32 2 other processes 15->32 signatures5 process6 dnsIp7 49 69.10.60.115, 4018, 49707, 49709 IS-AS-1US United States 20->49 43 C:\Users\user\AppData\Local\Temp\fmwmw.exe, PE32 20->43 dropped 53 Creates autostart registry keys with suspicious values (likely registry only malware) 20->53 51 127.0.0.1 unknown unknown 24->51 55 Injects a PE file into a foreign processes 26->55 34 file.exe 26->34         started        37 file.exe 26->37         started        39 file.exe 28->39         started        41 file.exe 28->41         started        file8 signatures9 process10 signatures11 65 Creates autostart registry keys with suspicious values (likely registry only malware) 34->65 67 Creates multiple autostart registry keys 34->67
Threat name:
Win32.Backdoor.Systembc
Status:
Malicious
First seen:
2024-01-30 04:02:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
18 of 23 (78.26%)
Threat level:
  5/5
Verdict:
malicious
Result
Malware family:
Score:
  10/10
Tags:
family:systembc family:zgrat persistence rat trojan
Behaviour
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in Windows directory
Drops file in System32 directory
Suspicious use of SetThreadContext
Adds Run key to start application
Executes dropped EXE
Downloads MZ/PE file
Detect ZGRat V1
SystemBC
ZGRat
Malware Config
C2 Extraction:
69.10.60.115:4018
Unpacked files
SH256 hash:
9b61ab1b854861a9e98bc354da2b104c277c97fd758e39a24c382a9b06e29bc9
MD5 hash:
250ed5825f166ce3037408aad1279687
SHA1 hash:
793029f350ebf293cd693ac271cfec186a8c78d3
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:MALWARE_Win_EXEPWSH_DLAgent
Author:ditekSHen
Description:Detects SystemBC
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Start2_net_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.

Web download

SystemBC

Executable exe 9b61ab1b854861a9e98bc354da2b104c277c97fd758e39a24c382a9b06e29bc9

(this sample)

  
Delivery method
Distributed via web download

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