Malware Analysis Report

2025-01-22 13:01

Sample ID 240626-jzh36athqb
Target 114b0b606e5cf7427184bc390c79ba9c_JaffaCakes118
SHA256 afb9216450c8dcb6b63ba81c8425d561568f7e20831e12227d6d1fa997e3fae1
Tags
vmprotect
score
7/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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
7/10

SHA256

afb9216450c8dcb6b63ba81c8425d561568f7e20831e12227d6d1fa997e3fae1

Threat Level: Shows suspicious behavior

The file 114b0b606e5cf7427184bc390c79ba9c_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

vmprotect

VMProtect packed file

Deletes itself

Executes dropped EXE

Drops file in System32 directory

Unsigned PE

Modifies data under HKEY_USERS

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-26 08:06

Signatures

VMProtect packed file

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-26 08:06

Reported

2024-06-26 08:08

Platform

win7-20240508-en

Max time kernel

138s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\114b0b606e5cf7427184bc390c79ba9c_JaffaCakes118.exe"

Signatures

Deletes itself

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

Executes dropped EXE

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

VMProtect packed file

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

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\ChackPro.exe C:\Users\Admin\AppData\Local\Temp\114b0b606e5cf7427184bc390c79ba9c_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\ChackPro.exe C:\Users\Admin\AppData\Local\Temp\114b0b606e5cf7427184bc390c79ba9c_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat C:\Windows\SysWOW64\ChackPro.exe N/A

Modifies data under HKEY_USERS

Description Indicator Process Target
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1" C:\Windows\SysWOW64\ChackPro.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings C:\Windows\SysWOW64\ChackPro.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\ChackPro.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DBB4EBAB-9170-4B81-B231-53D510E45737} C:\Windows\SysWOW64\ChackPro.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-79-9a-29-cf-db\WpadDecisionReason = "1" C:\Windows\SysWOW64\ChackPro.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000005000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f002a000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\ChackPro.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings C:\Windows\SysWOW64\ChackPro.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0" C:\Windows\SysWOW64\ChackPro.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DBB4EBAB-9170-4B81-B231-53D510E45737}\WpadDecisionTime = 90e2f7ba9fc7da01 C:\Windows\SysWOW64\ChackPro.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-79-9a-29-cf-db\WpadDecisionTime = f06d27dc9fc7da01 C:\Windows\SysWOW64\ChackPro.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-79-9a-29-cf-db\WpadDecisionTime = 108dc5fe9fc7da01 C:\Windows\SysWOW64\ChackPro.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections C:\Windows\SysWOW64\ChackPro.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DBB4EBAB-9170-4B81-B231-53D510E45737}\WpadDecisionReason = "1" C:\Windows\SysWOW64\ChackPro.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DBB4EBAB-9170-4B81-B231-53D510E45737}\WpadNetworkName = "Network 3" C:\Windows\SysWOW64\ChackPro.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DBB4EBAB-9170-4B81-B231-53D510E45737}\WpadDecisionTime = f06d27dc9fc7da01 C:\Windows\SysWOW64\ChackPro.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" C:\Windows\SysWOW64\ChackPro.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" C:\Windows\SysWOW64\ChackPro.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DBB4EBAB-9170-4B81-B231-53D510E45737}\0a-79-9a-29-cf-db C:\Windows\SysWOW64\ChackPro.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-79-9a-29-cf-db\WpadDecision = "0" C:\Windows\SysWOW64\ChackPro.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-79-9a-29-cf-db\WpadDetectedUrl C:\Windows\SysWOW64\ChackPro.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad C:\Windows\SysWOW64\ChackPro.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f002a000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\ChackPro.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DBB4EBAB-9170-4B81-B231-53D510E45737}\WpadDecision = "0" C:\Windows\SysWOW64\ChackPro.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000004000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f002a000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\ChackPro.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DBB4EBAB-9170-4B81-B231-53D510E45737}\WpadDecisionTime = 108dc5fe9fc7da01 C:\Windows\SysWOW64\ChackPro.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ C:\Windows\SysWOW64\ChackPro.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" C:\Windows\SysWOW64\ChackPro.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-79-9a-29-cf-db\WpadDecisionTime = 90e2f7ba9fc7da01 C:\Windows\SysWOW64\ChackPro.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-79-9a-29-cf-db C:\Windows\SysWOW64\ChackPro.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\ChackPro.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix C:\Windows\SysWOW64\ChackPro.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\114b0b606e5cf7427184bc390c79ba9c_JaffaCakes118.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\ChackPro.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\114b0b606e5cf7427184bc390c79ba9c_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\114b0b606e5cf7427184bc390c79ba9c_JaffaCakes118.exe"

C:\Windows\SysWOW64\ChackPro.exe

C:\Windows\SysWOW64\ChackPro.exe

C:\Windows\SysWOW64\cmd.exe

cmd /c C:\Users\Admin\AppData\Local\Temp\_uninsep.bat

Network

Country Destination Domain Proto
US 8.8.8.8:53 dlq.zljtl8.com udp
US 8.8.8.8:53 dlq.zljtl8.com udp
US 8.8.8.8:53 dlq.zljtl8.com udp
US 8.8.8.8:53 dlq.zljtl8.com udp
US 8.8.8.8:53 dlq.zljtl8.com udp
US 8.8.8.8:53 dlq.zljtl8.com udp
US 8.8.8.8:53 dlq.zljtl8.com udp
US 8.8.8.8:53 dlq.zljtl8.com udp

Files

memory/1732-0-0x0000000000400000-0x0000000000420000-memory.dmp

C:\Windows\SysWOW64\ChackPro.exe

MD5 114b0b606e5cf7427184bc390c79ba9c
SHA1 206f74ec955d64dfc3dff8d8181e4f2137c4b909
SHA256 afb9216450c8dcb6b63ba81c8425d561568f7e20831e12227d6d1fa997e3fae1
SHA512 637ff291ec3bf8e12edbe51a6a207e5a280a2f77e2b64a748dd7e7019f2229fdd1e70d12d63a169fde58dbe7544c2296c9fee922f59ab65e5c3ce2dd2aafbb01

memory/2980-3-0x0000000000400000-0x0000000000420000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\_uninsep.bat

MD5 41b09be07764ced7d6de33de45b5bcae
SHA1 1c7458d40156b10929a7e2edb2fa6fa25c71365d
SHA256 f7072adedb23f30437e77d19b4ea5eb2c4e4f24c7601c4b2366424b9e30479bb
SHA512 5e1e594e09bd2c551fb3d00d5464619107a002228a19535bbfbf73bb713d774f6198ec0521dd5fcc50a33901611e77f0e21f70bb676e986b8606fcf617050fe6

memory/1732-11-0x0000000000400000-0x0000000000420000-memory.dmp

memory/2980-13-0x0000000000400000-0x0000000000420000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-26 08:06

Reported

2024-06-26 08:08

Platform

win10v2004-20240508-en

Max time kernel

146s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\114b0b606e5cf7427184bc390c79ba9c_JaffaCakes118.exe"

Signatures

Executes dropped EXE

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

VMProtect packed file

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

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 C:\Windows\SysWOW64\ChackPro.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE C:\Windows\SysWOW64\ChackPro.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies C:\Windows\SysWOW64\ChackPro.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 C:\Windows\SysWOW64\ChackPro.exe N/A
File created C:\Windows\SysWOW64\ChackPro.exe C:\Users\Admin\AppData\Local\Temp\114b0b606e5cf7427184bc390c79ba9c_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\ChackPro.exe C:\Users\Admin\AppData\Local\Temp\114b0b606e5cf7427184bc390c79ba9c_JaffaCakes118.exe N/A

Modifies data under HKEY_USERS

Description Indicator Process Target
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" C:\Windows\SysWOW64\ChackPro.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" C:\Windows\SysWOW64\ChackPro.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix C:\Windows\SysWOW64\ChackPro.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" C:\Windows\SysWOW64\ChackPro.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" C:\Windows\SysWOW64\ChackPro.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ C:\Windows\SysWOW64\ChackPro.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" C:\Windows\SysWOW64\ChackPro.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" C:\Windows\SysWOW64\ChackPro.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\114b0b606e5cf7427184bc390c79ba9c_JaffaCakes118.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\ChackPro.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\114b0b606e5cf7427184bc390c79ba9c_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\114b0b606e5cf7427184bc390c79ba9c_JaffaCakes118.exe"

C:\Windows\SysWOW64\ChackPro.exe

C:\Windows\SysWOW64\ChackPro.exe

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\_uninsep.bat

Network

Country Destination Domain Proto
US 8.8.8.8:53 dlq.zljtl8.com udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 dlq.zljtl8.com udp
US 8.8.8.8:53 dlq.zljtl8.com udp
US 8.8.8.8:53 dlq.zljtl8.com udp
US 8.8.8.8:53 dlq.zljtl8.com udp
US 8.8.8.8:53 dlq.zljtl8.com udp
US 8.8.8.8:53 dlq.zljtl8.com udp
US 8.8.8.8:53 dlq.zljtl8.com udp
US 8.8.8.8:53 dlq.zljtl8.com udp

Files

memory/2760-0-0x0000000000400000-0x0000000000420000-memory.dmp

C:\Windows\SysWOW64\ChackPro.exe

MD5 114b0b606e5cf7427184bc390c79ba9c
SHA1 206f74ec955d64dfc3dff8d8181e4f2137c4b909
SHA256 afb9216450c8dcb6b63ba81c8425d561568f7e20831e12227d6d1fa997e3fae1
SHA512 637ff291ec3bf8e12edbe51a6a207e5a280a2f77e2b64a748dd7e7019f2229fdd1e70d12d63a169fde58dbe7544c2296c9fee922f59ab65e5c3ce2dd2aafbb01

memory/2248-4-0x0000000000400000-0x0000000000420000-memory.dmp

memory/2760-7-0x0000000000400000-0x0000000000420000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\_uninsep.bat

MD5 41b09be07764ced7d6de33de45b5bcae
SHA1 1c7458d40156b10929a7e2edb2fa6fa25c71365d
SHA256 f7072adedb23f30437e77d19b4ea5eb2c4e4f24c7601c4b2366424b9e30479bb
SHA512 5e1e594e09bd2c551fb3d00d5464619107a002228a19535bbfbf73bb713d774f6198ec0521dd5fcc50a33901611e77f0e21f70bb676e986b8606fcf617050fe6

memory/2248-9-0x0000000000400000-0x0000000000420000-memory.dmp