Malware Analysis Report

2024-12-07 22:35

Sample ID 240719-1mh13a1fjr
Target 5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118
SHA256 675848cc29ad5a58c4bb86d8123f107cdf592379cb55997caf12a17ed5051a8b
Tags
remcos feb22 rat
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

675848cc29ad5a58c4bb86d8123f107cdf592379cb55997caf12a17ed5051a8b

Threat Level: Known bad

The file 5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

remcos feb22 rat

Remcos

Checks computer location settings

Suspicious use of SetThreadContext

Unsigned PE

Enumerates physical storage devices

Scheduled Task/Job: Scheduled Task

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-19 21:45

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-19 21:45

Reported

2024-07-19 21:48

Platform

win7-20240704-en

Max time kernel

148s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe"

Signatures

Remcos

rat remcos

Enumerates physical storage devices

Scheduled Task/Job: Scheduled Task

persistence execution
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2364 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2364 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2364 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2364 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2364 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe
PID 2364 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe
PID 2364 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe
PID 2364 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe
PID 2364 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe
PID 2364 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe
PID 2364 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe
PID 2364 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe
PID 2364 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe
PID 2364 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe
PID 2364 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe

Processes

C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe"

C:\Windows\SysWOW64\schtasks.exe

"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wlpuzoX" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2AF7.tmp"

C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 idiotobocaefabmantenio2021.duckdns.org udp
CO 179.14.8.26:2244 idiotobocaefabmantenio2021.duckdns.org tcp
CO 179.14.8.26:2244 idiotobocaefabmantenio2021.duckdns.org tcp
CO 179.14.8.26:2244 idiotobocaefabmantenio2021.duckdns.org tcp
US 8.8.8.8:53 idiotobocaefabmantenio2021.duckdns.org udp
CO 179.14.8.26:2244 idiotobocaefabmantenio2021.duckdns.org tcp

Files

memory/2364-0-0x0000000073CA1000-0x0000000073CA2000-memory.dmp

memory/2364-1-0x0000000073CA0000-0x000000007424B000-memory.dmp

memory/2364-2-0x0000000073CA0000-0x000000007424B000-memory.dmp

memory/2364-3-0x0000000073CA0000-0x000000007424B000-memory.dmp

memory/2364-4-0x0000000073CA0000-0x000000007424B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp2AF7.tmp

MD5 e637cdb8a74ea5ca9fc03f0f422e976a
SHA1 a9b44db5936db7328be9dac41dcc5585c94883ce
SHA256 4005f929dbd0d775b0a9b15169d6f3e85ddb76101f921fbde85b2743d89025fe
SHA512 2c8b56cf2924acb78f63b74673338ede3e48eecea5b4a4a050431b7ed07fdfbe889c1b703ab083f5679f92fd789dc4d9381b9fcf950e06753508d8da4618e769

memory/2664-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2664-10-0x0000000000400000-0x0000000000421000-memory.dmp

memory/2664-20-0x0000000000400000-0x0000000000421000-memory.dmp

memory/2664-18-0x0000000000400000-0x0000000000421000-memory.dmp

memory/2364-30-0x0000000073CA0000-0x000000007424B000-memory.dmp

memory/2664-26-0x0000000000400000-0x0000000000421000-memory.dmp

memory/2664-32-0x0000000000400000-0x0000000000421000-memory.dmp

memory/2664-31-0x0000000000400000-0x0000000000421000-memory.dmp

memory/2664-16-0x0000000000400000-0x0000000000421000-memory.dmp

memory/2664-14-0x0000000000400000-0x0000000000421000-memory.dmp

memory/2664-12-0x0000000000400000-0x0000000000421000-memory.dmp

memory/2664-24-0x0000000000400000-0x0000000000421000-memory.dmp

memory/2664-35-0x0000000000400000-0x0000000000421000-memory.dmp

C:\Users\Admin\AppData\Roaming\remcos\logs.dat

MD5 91f769d9d040d9dd25efffd99c079092
SHA1 91d2b8234218d5e505edfc0551435da12abbe46d
SHA256 f5e0cb61121d9cae177c4ea8c066814531f06573881a25f67eac95615262f2cc
SHA512 93157ff1ee9a7a11ad23ddd34b5f2300fd3818006419af095a0d91d41bc2a47dbf3d2ee66d21dedfd10851a710ad4aa7b5e4c2e9e2a96ce8bb5eccb36227045b

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-19 21:45

Reported

2024-07-19 21:48

Platform

win10v2004-20240709-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe"

Signatures

Remcos

rat remcos

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2636447293-1148739154-93880854-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe N/A

Enumerates physical storage devices

Scheduled Task/Job: Scheduled Task

persistence execution
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3120 wrote to memory of 556 N/A C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 3120 wrote to memory of 556 N/A C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 3120 wrote to memory of 556 N/A C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 3120 wrote to memory of 2552 N/A C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe
PID 3120 wrote to memory of 2552 N/A C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe
PID 3120 wrote to memory of 2552 N/A C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe
PID 3120 wrote to memory of 2552 N/A C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe
PID 3120 wrote to memory of 2552 N/A C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe
PID 3120 wrote to memory of 2552 N/A C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe
PID 3120 wrote to memory of 2552 N/A C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe
PID 3120 wrote to memory of 2552 N/A C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe
PID 3120 wrote to memory of 2552 N/A C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe
PID 3120 wrote to memory of 2552 N/A C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe

Processes

C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe"

C:\Windows\SysWOW64\schtasks.exe

"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wlpuzoX" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB224.tmp"

C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\5dcb537617fd5a789c15613aa5fe12fb_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 59.170.16.2.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 idiotobocaefabmantenio2021.duckdns.org udp
CO 179.14.8.26:2244 idiotobocaefabmantenio2021.duckdns.org tcp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
CO 179.14.8.26:2244 idiotobocaefabmantenio2021.duckdns.org tcp
CO 179.14.8.26:2244 idiotobocaefabmantenio2021.duckdns.org tcp
US 8.8.8.8:53 idiotobocaefabmantenio2021.duckdns.org udp
CO 179.14.8.26:2244 idiotobocaefabmantenio2021.duckdns.org tcp

Files

memory/3120-0-0x0000000075432000-0x0000000075433000-memory.dmp

memory/3120-1-0x0000000075430000-0x00000000759E1000-memory.dmp

memory/3120-2-0x0000000075430000-0x00000000759E1000-memory.dmp

memory/3120-3-0x0000000075432000-0x0000000075433000-memory.dmp

memory/3120-4-0x0000000075430000-0x00000000759E1000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmpB224.tmp

MD5 bff1a9dec68215b125eeef0188858f01
SHA1 f8b89042836b7ecefbc68bb8b676bac6241aab9a
SHA256 81fb4329b84f011d59c56f89ad568391c00c39d25b22b105999966dd000d6334
SHA512 7654d32f26abeca488b772e0a702e357ed9fa817c50715bb09eb147323fb53675f65afccacbd42ff7f9046124e93a41f90ef57215461817676507ef8e7574a82

memory/2552-10-0x0000000000400000-0x0000000000421000-memory.dmp

memory/2552-13-0x0000000000400000-0x0000000000421000-memory.dmp

memory/2552-14-0x0000000000400000-0x0000000000421000-memory.dmp

memory/2552-17-0x0000000000400000-0x0000000000421000-memory.dmp

memory/2552-18-0x0000000000400000-0x0000000000421000-memory.dmp

memory/3120-19-0x0000000075430000-0x00000000759E1000-memory.dmp

memory/2552-22-0x0000000000400000-0x0000000000421000-memory.dmp

C:\Users\Admin\AppData\Roaming\remcos\logs.dat

MD5 91f769d9d040d9dd25efffd99c079092
SHA1 91d2b8234218d5e505edfc0551435da12abbe46d
SHA256 f5e0cb61121d9cae177c4ea8c066814531f06573881a25f67eac95615262f2cc
SHA512 93157ff1ee9a7a11ad23ddd34b5f2300fd3818006419af095a0d91d41bc2a47dbf3d2ee66d21dedfd10851a710ad4aa7b5e4c2e9e2a96ce8bb5eccb36227045b