Malware Analysis Report

2024-10-23 19:44

Sample ID 240426-s6jgyaeg64
Target 011c9344620bfd478f5d5cd2e086906f_JaffaCakes118
SHA256 e4e8614432443bd5bb00a2b4ec2bb75c000ecbc5e953ed48b3b591b49a927f95
Tags
nanocore evasion keylogger persistence spyware stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

e4e8614432443bd5bb00a2b4ec2bb75c000ecbc5e953ed48b3b591b49a927f95

Threat Level: Known bad

The file 011c9344620bfd478f5d5cd2e086906f_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

nanocore evasion keylogger persistence spyware stealer trojan

NanoCore

Loads dropped DLL

Checks computer location settings

Executes dropped EXE

Checks whether UAC is enabled

Adds Run key to start application

Suspicious use of SetThreadContext

Unsigned PE

Enumerates physical storage devices

Suspicious behavior: GetForegroundWindowSpam

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-26 15:44

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-26 15:44

Reported

2024-04-26 15:46

Platform

win7-20240221-en

Max time kernel

134s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\011c9344620bfd478f5d5cd2e086906f_JaffaCakes118.exe"

Signatures

NanoCore

keylogger trojan stealer spyware nanocore

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\SystemObi.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\SystemObi.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\SystemObi = "C:\\Users\\Admin\\AppData\\Local\\SystemObi.exe -boot" C:\Users\Admin\AppData\Local\SystemObi.exe N/A

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\SystemObi.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2364 set thread context of 1396 N/A C:\Users\Admin\AppData\Local\SystemObi.exe C:\Users\Admin\AppData\Local\SystemObi.exe

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\SystemObi.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\SystemObi.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\SystemObi.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\011c9344620bfd478f5d5cd2e086906f_JaffaCakes118.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\SystemObi.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\SystemObi.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2888 wrote to memory of 2524 N/A C:\Users\Admin\AppData\Local\Temp\011c9344620bfd478f5d5cd2e086906f_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2888 wrote to memory of 2524 N/A C:\Users\Admin\AppData\Local\Temp\011c9344620bfd478f5d5cd2e086906f_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2888 wrote to memory of 2524 N/A C:\Users\Admin\AppData\Local\Temp\011c9344620bfd478f5d5cd2e086906f_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2888 wrote to memory of 2524 N/A C:\Users\Admin\AppData\Local\Temp\011c9344620bfd478f5d5cd2e086906f_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2888 wrote to memory of 2648 N/A C:\Users\Admin\AppData\Local\Temp\011c9344620bfd478f5d5cd2e086906f_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2888 wrote to memory of 2648 N/A C:\Users\Admin\AppData\Local\Temp\011c9344620bfd478f5d5cd2e086906f_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2888 wrote to memory of 2648 N/A C:\Users\Admin\AppData\Local\Temp\011c9344620bfd478f5d5cd2e086906f_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2888 wrote to memory of 2648 N/A C:\Users\Admin\AppData\Local\Temp\011c9344620bfd478f5d5cd2e086906f_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2648 wrote to memory of 2364 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\SystemObi.exe
PID 2648 wrote to memory of 2364 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\SystemObi.exe
PID 2648 wrote to memory of 2364 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\SystemObi.exe
PID 2648 wrote to memory of 2364 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\SystemObi.exe
PID 2364 wrote to memory of 1396 N/A C:\Users\Admin\AppData\Local\SystemObi.exe C:\Users\Admin\AppData\Local\SystemObi.exe
PID 2364 wrote to memory of 1396 N/A C:\Users\Admin\AppData\Local\SystemObi.exe C:\Users\Admin\AppData\Local\SystemObi.exe
PID 2364 wrote to memory of 1396 N/A C:\Users\Admin\AppData\Local\SystemObi.exe C:\Users\Admin\AppData\Local\SystemObi.exe
PID 2364 wrote to memory of 1396 N/A C:\Users\Admin\AppData\Local\SystemObi.exe C:\Users\Admin\AppData\Local\SystemObi.exe
PID 2364 wrote to memory of 1396 N/A C:\Users\Admin\AppData\Local\SystemObi.exe C:\Users\Admin\AppData\Local\SystemObi.exe
PID 2364 wrote to memory of 1396 N/A C:\Users\Admin\AppData\Local\SystemObi.exe C:\Users\Admin\AppData\Local\SystemObi.exe
PID 2364 wrote to memory of 1396 N/A C:\Users\Admin\AppData\Local\SystemObi.exe C:\Users\Admin\AppData\Local\SystemObi.exe
PID 2364 wrote to memory of 1396 N/A C:\Users\Admin\AppData\Local\SystemObi.exe C:\Users\Admin\AppData\Local\SystemObi.exe
PID 2364 wrote to memory of 1396 N/A C:\Users\Admin\AppData\Local\SystemObi.exe C:\Users\Admin\AppData\Local\SystemObi.exe

Processes

C:\Users\Admin\AppData\Local\Temp\011c9344620bfd478f5d5cd2e086906f_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\011c9344620bfd478f5d5cd2e086906f_JaffaCakes118.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c copy "C:\Users\Admin\AppData\Local\Temp\011c9344620bfd478f5d5cd2e086906f_JaffaCakes118.exe" "C:\Users\Admin\AppData\Local\SystemObi.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c, "C:\Users\Admin\AppData\Local\SystemObi.exe"

C:\Users\Admin\AppData\Local\SystemObi.exe

"C:\Users\Admin\AppData\Local\SystemObi.exe"

C:\Users\Admin\AppData\Local\SystemObi.exe

"C:\Users\Admin\AppData\Local\SystemObi.exe"

Network

Country Destination Domain Proto
IT 95.141.43.197:1990 tcp
IT 95.141.43.197:1990 tcp
IT 95.141.43.197:1990 tcp
N/A 127.0.0.1:1990 tcp
N/A 127.0.0.1:1990 tcp
N/A 127.0.0.1:1990 tcp
IT 95.141.43.197:1990 tcp
IT 95.141.43.197:1990 tcp

Files

memory/2888-0-0x0000000000D70000-0x0000000000E02000-memory.dmp

memory/2888-1-0x0000000074340000-0x0000000074A2E000-memory.dmp

memory/2888-2-0x00000000002A0000-0x000000000031E000-memory.dmp

memory/2888-3-0x0000000000670000-0x00000000006B0000-memory.dmp

memory/2888-4-0x0000000000270000-0x000000000028E000-memory.dmp

memory/2888-7-0x0000000074340000-0x0000000074A2E000-memory.dmp

C:\Users\Admin\AppData\Local\SystemObi.exe

MD5 011c9344620bfd478f5d5cd2e086906f
SHA1 0cf2f268bb8bee1dc3bc7abc740856401a2dbb11
SHA256 e4e8614432443bd5bb00a2b4ec2bb75c000ecbc5e953ed48b3b591b49a927f95
SHA512 056669240c96d3f8d0b8f31c7c16b7ab9b104a7b87639da8af9c7ac45c3a47f7d403f2afdba259f8d50b31cd526d660ca446a8e82c1b9a1adc8bcf5f64157314

memory/2364-11-0x0000000000910000-0x00000000009A2000-memory.dmp

memory/1396-14-0x0000000000080000-0x00000000000B8000-memory.dmp

memory/1396-21-0x0000000000080000-0x00000000000B8000-memory.dmp

memory/1396-18-0x0000000000080000-0x00000000000B8000-memory.dmp

memory/1396-23-0x0000000000630000-0x000000000063A000-memory.dmp

memory/1396-24-0x00000000006D0000-0x00000000006EE000-memory.dmp

memory/1396-25-0x0000000000680000-0x000000000068A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-26 15:44

Reported

2024-04-26 15:46

Platform

win10v2004-20240419-en

Max time kernel

147s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\011c9344620bfd478f5d5cd2e086906f_JaffaCakes118.exe"

Signatures

NanoCore

keylogger trojan stealer spyware nanocore

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3411335054-1982420046-2118495756-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\011c9344620bfd478f5d5cd2e086906f_JaffaCakes118.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\SystemObi.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\SystemObi.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3411335054-1982420046-2118495756-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SystemObi = "C:\\Users\\Admin\\AppData\\Local\\SystemObi.exe -boot" C:\Users\Admin\AppData\Local\SystemObi.exe N/A

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\SystemObi.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1204 set thread context of 4688 N/A C:\Users\Admin\AppData\Local\SystemObi.exe C:\Users\Admin\AppData\Local\SystemObi.exe

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\SystemObi.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\SystemObi.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\SystemObi.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\SystemObi.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\011c9344620bfd478f5d5cd2e086906f_JaffaCakes118.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\SystemObi.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\SystemObi.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1624 wrote to memory of 2260 N/A C:\Users\Admin\AppData\Local\Temp\011c9344620bfd478f5d5cd2e086906f_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 1624 wrote to memory of 2260 N/A C:\Users\Admin\AppData\Local\Temp\011c9344620bfd478f5d5cd2e086906f_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 1624 wrote to memory of 2260 N/A C:\Users\Admin\AppData\Local\Temp\011c9344620bfd478f5d5cd2e086906f_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 1624 wrote to memory of 3768 N/A C:\Users\Admin\AppData\Local\Temp\011c9344620bfd478f5d5cd2e086906f_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 1624 wrote to memory of 3768 N/A C:\Users\Admin\AppData\Local\Temp\011c9344620bfd478f5d5cd2e086906f_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 1624 wrote to memory of 3768 N/A C:\Users\Admin\AppData\Local\Temp\011c9344620bfd478f5d5cd2e086906f_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 3768 wrote to memory of 1204 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\SystemObi.exe
PID 3768 wrote to memory of 1204 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\SystemObi.exe
PID 3768 wrote to memory of 1204 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\SystemObi.exe
PID 1204 wrote to memory of 4688 N/A C:\Users\Admin\AppData\Local\SystemObi.exe C:\Users\Admin\AppData\Local\SystemObi.exe
PID 1204 wrote to memory of 4688 N/A C:\Users\Admin\AppData\Local\SystemObi.exe C:\Users\Admin\AppData\Local\SystemObi.exe
PID 1204 wrote to memory of 4688 N/A C:\Users\Admin\AppData\Local\SystemObi.exe C:\Users\Admin\AppData\Local\SystemObi.exe
PID 1204 wrote to memory of 4688 N/A C:\Users\Admin\AppData\Local\SystemObi.exe C:\Users\Admin\AppData\Local\SystemObi.exe
PID 1204 wrote to memory of 4688 N/A C:\Users\Admin\AppData\Local\SystemObi.exe C:\Users\Admin\AppData\Local\SystemObi.exe
PID 1204 wrote to memory of 4688 N/A C:\Users\Admin\AppData\Local\SystemObi.exe C:\Users\Admin\AppData\Local\SystemObi.exe
PID 1204 wrote to memory of 4688 N/A C:\Users\Admin\AppData\Local\SystemObi.exe C:\Users\Admin\AppData\Local\SystemObi.exe
PID 1204 wrote to memory of 4688 N/A C:\Users\Admin\AppData\Local\SystemObi.exe C:\Users\Admin\AppData\Local\SystemObi.exe

Processes

C:\Users\Admin\AppData\Local\Temp\011c9344620bfd478f5d5cd2e086906f_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\011c9344620bfd478f5d5cd2e086906f_JaffaCakes118.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c copy "C:\Users\Admin\AppData\Local\Temp\011c9344620bfd478f5d5cd2e086906f_JaffaCakes118.exe" "C:\Users\Admin\AppData\Local\SystemObi.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c, "C:\Users\Admin\AppData\Local\SystemObi.exe"

C:\Users\Admin\AppData\Local\SystemObi.exe

"C:\Users\Admin\AppData\Local\SystemObi.exe"

C:\Users\Admin\AppData\Local\SystemObi.exe

"C:\Users\Admin\AppData\Local\SystemObi.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 8.8.8.8:53 g.bing.com udp
IT 95.141.43.197:1990 tcp
IT 95.141.43.197:1990 tcp
IT 95.141.43.197:1990 tcp
N/A 127.0.0.1:1990 tcp
N/A 127.0.0.1:1990 tcp
N/A 127.0.0.1:1990 tcp
IT 95.141.43.197:1990 tcp
IT 95.141.43.197:1990 tcp
IT 95.141.43.197:1990 tcp

Files

memory/1624-0-0x00000000745F0000-0x0000000074DA0000-memory.dmp

memory/1624-1-0x0000000000D20000-0x0000000000DB2000-memory.dmp

memory/1624-2-0x0000000005D50000-0x00000000062F4000-memory.dmp

memory/1624-3-0x00000000057A0000-0x0000000005832000-memory.dmp

memory/1624-4-0x0000000005940000-0x00000000059BE000-memory.dmp

memory/1624-5-0x00000000059C0000-0x00000000059DE000-memory.dmp

memory/1624-6-0x0000000005A30000-0x0000000005A40000-memory.dmp

memory/1624-7-0x0000000005C90000-0x0000000005C9A000-memory.dmp

memory/1624-11-0x00000000745F0000-0x0000000074DA0000-memory.dmp

C:\Users\Admin\AppData\Local\SystemObi.exe

MD5 011c9344620bfd478f5d5cd2e086906f
SHA1 0cf2f268bb8bee1dc3bc7abc740856401a2dbb11
SHA256 e4e8614432443bd5bb00a2b4ec2bb75c000ecbc5e953ed48b3b591b49a927f95
SHA512 056669240c96d3f8d0b8f31c7c16b7ab9b104a7b87639da8af9c7ac45c3a47f7d403f2afdba259f8d50b31cd526d660ca446a8e82c1b9a1adc8bcf5f64157314

memory/1204-15-0x00000000745F0000-0x0000000074DA0000-memory.dmp

memory/1204-16-0x0000000005260000-0x0000000005270000-memory.dmp

memory/1204-17-0x0000000008AA0000-0x0000000008B3C000-memory.dmp

memory/1204-18-0x00000000745F0000-0x0000000074DA0000-memory.dmp

memory/1204-19-0x0000000005260000-0x0000000005270000-memory.dmp

memory/4688-20-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1204-23-0x00000000745F0000-0x0000000074DA0000-memory.dmp

memory/4688-25-0x0000000006090000-0x000000000609A000-memory.dmp

memory/4688-26-0x0000000006120000-0x000000000613E000-memory.dmp

memory/4688-27-0x0000000006260000-0x000000000626A000-memory.dmp