Malware Analysis Report

2025-01-02 08:05

Sample ID 240510-ahyylsae58
Target 2c62f4fea652fb2a7a2cb0c4eb111aaa_JaffaCakes118
SHA256 c3216ca3fc99b508a65f48c3c628e467973eef3fc427129d1bba7f1df97f9719
Tags
privateloader loader upx
score
10/10

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: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral4

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral5

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral6

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

c3216ca3fc99b508a65f48c3c628e467973eef3fc427129d1bba7f1df97f9719

Threat Level: Known bad

The file 2c62f4fea652fb2a7a2cb0c4eb111aaa_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

privateloader loader upx

PrivateLoader

Privateloader family

UPX packed file

Unsigned PE

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-05-10 00:13

Signatures

Privateloader family

privateloader

UPX packed file

upx
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
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-10 00:13

Reported

2024-05-10 00:16

Platform

win7-20240215-en

Max time kernel

118s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\mpeg.exe"

Signatures

PrivateLoader

loader privateloader

Processes

C:\Users\Admin\AppData\Local\Temp\mpeg.exe

"C:\Users\Admin\AppData\Local\Temp\mpeg.exe"

Network

N/A

Files

memory/2832-0-0x0000000000400000-0x000000000304B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-10 00:13

Reported

2024-05-10 00:16

Platform

win10v2004-20240426-en

Max time kernel

148s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\mpeg.exe"

Signatures

PrivateLoader

loader privateloader

Processes

C:\Users\Admin\AppData\Local\Temp\mpeg.exe

"C:\Users\Admin\AppData\Local\Temp\mpeg.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
BE 88.221.83.242:443 www.bing.com tcp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 8.8.8.8:53 242.83.221.88.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
BE 88.221.83.242:443 www.bing.com tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 28.73.42.20.in-addr.arpa udp

Files

memory/3800-0-0x0000000000400000-0x000000000304B000-memory.dmp

Analysis: behavioral3

Detonation Overview

Submitted

2024-05-10 00:13

Reported

2024-05-10 00:16

Platform

win7-20231129-en

Max time kernel

140s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\万门课件不完美解析.exe"

Signatures

UPX packed file

upx
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
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
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

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\万门课件不完美解析.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\万门课件不完美解析.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\万门课件不完美解析.exe

"C:\Users\Admin\AppData\Local\Temp\万门课件不完美解析.exe"

Network

N/A

Files

memory/2204-0-0x0000000000400000-0x000000000058A000-memory.dmp

memory/2204-1-0x0000000000400000-0x000000000058A000-memory.dmp

memory/2204-2-0x0000000000400000-0x000000000058A000-memory.dmp

memory/2204-3-0x0000000000400000-0x000000000058A000-memory.dmp

memory/2204-4-0x0000000000400000-0x000000000058A000-memory.dmp

memory/2204-5-0x0000000000400000-0x000000000058A000-memory.dmp

memory/2204-6-0x0000000000400000-0x000000000058A000-memory.dmp

memory/2204-7-0x0000000000400000-0x000000000058A000-memory.dmp

memory/2204-8-0x0000000000400000-0x000000000058A000-memory.dmp

memory/2204-9-0x0000000000400000-0x000000000058A000-memory.dmp

memory/2204-10-0x0000000000400000-0x000000000058A000-memory.dmp

memory/2204-11-0x0000000000400000-0x000000000058A000-memory.dmp

memory/2204-12-0x0000000000400000-0x000000000058A000-memory.dmp

memory/2204-13-0x0000000000400000-0x000000000058A000-memory.dmp

memory/2204-14-0x0000000000400000-0x000000000058A000-memory.dmp

Analysis: behavioral4

Detonation Overview

Submitted

2024-05-10 00:13

Reported

2024-05-10 00:16

Platform

win10v2004-20240226-en

Max time kernel

157s

Max time network

161s

Command Line

"C:\Users\Admin\AppData\Local\Temp\万门课件不完美解析.exe"

Signatures

UPX packed file

upx
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

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\万门课件不完美解析.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\万门课件不完美解析.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\万门课件不完美解析.exe

"C:\Users\Admin\AppData\Local\Temp\万门课件不完美解析.exe"

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4156 --field-trial-handle=2180,i,12780723798465539942,12010519452607841069,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 35.15.31.184.in-addr.arpa udp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
GB 172.217.169.74:443 chromewebstore.googleapis.com tcp
US 8.8.8.8:53 74.169.217.172.in-addr.arpa udp
US 8.8.8.8:53 175.117.168.52.in-addr.arpa udp

Files

memory/1932-0-0x0000000000400000-0x000000000058A000-memory.dmp

memory/1932-1-0x0000000000400000-0x000000000058A000-memory.dmp

memory/1932-2-0x0000000000400000-0x000000000058A000-memory.dmp

memory/1932-3-0x0000000000400000-0x000000000058A000-memory.dmp

memory/1932-4-0x0000000000400000-0x000000000058A000-memory.dmp

Analysis: behavioral5

Detonation Overview

Submitted

2024-05-10 00:13

Reported

2024-05-10 00:16

Platform

win7-20240221-en

Max time kernel

119s

Max time network

125s

Command Line

"C:\Windows\System32\rundll32.exe" "C:\Windows\System32\ieframe.dll",OpenURL C:\Users\Admin\AppData\Local\Temp\东坡软件下载.url

Signatures

N/A

Processes

C:\Windows\System32\rundll32.exe

"C:\Windows\System32\rundll32.exe" "C:\Windows\System32\ieframe.dll",OpenURL C:\Users\Admin\AppData\Local\Temp\东坡软件下载.url

Network

N/A

Files

memory/2224-0-0x0000000001BE0000-0x0000000001BE1000-memory.dmp

Analysis: behavioral6

Detonation Overview

Submitted

2024-05-10 00:13

Reported

2024-05-10 00:16

Platform

win10v2004-20240508-en

Max time kernel

123s

Max time network

128s

Command Line

"C:\Windows\System32\rundll32.exe" "C:\Windows\System32\ieframe.dll",OpenURL C:\Users\Admin\AppData\Local\Temp\东坡软件下载.url

Signatures

N/A

Processes

C:\Windows\System32\rundll32.exe

"C:\Windows\System32\rundll32.exe" "C:\Windows\System32\ieframe.dll",OpenURL C:\Users\Admin\AppData\Local\Temp\东坡软件下载.url

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4080,i,15140928051103392835,1612840580898364401,262144 --variations-seed-version --mojo-platform-channel-handle=4376 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
BE 88.221.83.193:443 www.bing.com tcp
US 8.8.8.8:53 193.83.221.88.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 26.173.189.20.in-addr.arpa udp

Files

N/A