Malware Analysis Report

2024-08-06 17:31

Sample ID 240628-njn2paxalh
Target lab_samples.zip
SHA256 596263884d5474c2d3bb01238718eb30ce2c8539c99f66fa26b92171c6786c26
Tags
guest16 darkcomet persistence upx
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

596263884d5474c2d3bb01238718eb30ce2c8539c99f66fa26b92171c6786c26

Threat Level: Known bad

The file lab_samples.zip was found to be: Known bad.

Malicious Activity Summary

guest16 darkcomet persistence upx

Darkcomet family

UPX packed file

Adds Run key to start application

Suspicious use of SetThreadContext

Enumerates physical storage devices

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-06-28 11:25

Signatures

Darkcomet family

darkcomet

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-28 11:25

Reported

2024-06-28 11:28

Platform

win10-20240404-en

Max time kernel

149s

Max time network

136s

Command Line

"C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe"

Signatures

UPX packed file

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-160447019-1232603106-4168707212-1000\Software\Microsoft\Windows\CurrentVersion\Run\zam = "C:\\Users\\Admin\\AppData\\Roaming\\zam\\zam.exe" C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
N/A N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4704 wrote to memory of 3836 N/A C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 4704 wrote to memory of 3836 N/A C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 4704 wrote to memory of 3836 N/A C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 4704 wrote to memory of 3836 N/A C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 4704 wrote to memory of 3836 N/A C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 4704 wrote to memory of 2032 N/A C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 4704 wrote to memory of 2032 N/A C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 4704 wrote to memory of 2032 N/A C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 4704 wrote to memory of 2032 N/A C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 4704 wrote to memory of 2032 N/A C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 4704 wrote to memory of 4812 N/A C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 4704 wrote to memory of 4812 N/A C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 4704 wrote to memory of 4812 N/A C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 4704 wrote to memory of 4812 N/A C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 4704 wrote to memory of 4812 N/A C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 4704 wrote to memory of 1520 N/A C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 4704 wrote to memory of 1520 N/A C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 4704 wrote to memory of 1520 N/A C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 4704 wrote to memory of 1520 N/A C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 4704 wrote to memory of 1520 N/A C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe

Processes

C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe

"C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe"

C:\Program Files (x86)\Internet Explorer\iexplore.exe

"C:\Program Files (x86)\Internet Explorer\iexplore.exe"

C:\Program Files (x86)\Internet Explorer\iexplore.exe

"C:\Program Files (x86)\Internet Explorer\iexplore.exe"

C:\Program Files (x86)\Internet Explorer\iexplore.exe

"C:\Program Files (x86)\Internet Explorer\iexplore.exe"

C:\Program Files (x86)\Internet Explorer\iexplore.exe

"C:\Program Files (x86)\Internet Explorer\iexplore.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 axroot.com udp
US 8.8.8.8:53 axroot.com udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 axroot.com udp
US 8.8.8.8:53 axroot.com udp
US 8.8.8.8:53 11.179.89.13.in-addr.arpa udp
US 8.8.8.8:53 138.107.17.2.in-addr.arpa udp

Files

memory/4704-0-0x0000000000590000-0x0000000000591000-memory.dmp

memory/4704-1-0x0000000013140000-0x0000000013208000-memory.dmp

memory/4704-3-0x0000000013140000-0x0000000013208000-memory.dmp

memory/3836-4-0x0000000013140000-0x0000000013B98000-memory.dmp

memory/4704-5-0x0000000013140000-0x0000000013208000-memory.dmp

memory/4704-6-0x0000000013140000-0x0000000013208000-memory.dmp

memory/4704-8-0x0000000013140000-0x0000000013208000-memory.dmp

memory/4704-9-0x0000000013140000-0x0000000013208000-memory.dmp

memory/4704-10-0x0000000013140000-0x0000000013208000-memory.dmp

memory/4704-12-0x0000000013140000-0x0000000013208000-memory.dmp

memory/4704-14-0x0000000013140000-0x0000000013208000-memory.dmp

memory/4704-15-0x0000000013140000-0x0000000013208000-memory.dmp

memory/4704-17-0x0000000013140000-0x0000000013208000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-28 11:25

Reported

2024-06-28 11:28

Platform

win10v2004-20240611-en

Max time kernel

149s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe"

Signatures

UPX packed file

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3665033694-1447845302-680750983-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zam = "C:\\Users\\Admin\\AppData\\Roaming\\zam\\zam.exe" C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
N/A N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3208 wrote to memory of 64 N/A C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 3208 wrote to memory of 64 N/A C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 3208 wrote to memory of 64 N/A C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 3208 wrote to memory of 64 N/A C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 3208 wrote to memory of 64 N/A C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 3208 wrote to memory of 3704 N/A C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 3208 wrote to memory of 3704 N/A C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 3208 wrote to memory of 3704 N/A C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 3208 wrote to memory of 3704 N/A C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 3208 wrote to memory of 3704 N/A C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 3208 wrote to memory of 3036 N/A C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 3208 wrote to memory of 3036 N/A C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 3208 wrote to memory of 3036 N/A C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 3208 wrote to memory of 3036 N/A C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 3208 wrote to memory of 3036 N/A C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 3208 wrote to memory of 2056 N/A C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 3208 wrote to memory of 2056 N/A C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 3208 wrote to memory of 2056 N/A C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 3208 wrote to memory of 2056 N/A C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 3208 wrote to memory of 2056 N/A C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe

Processes

C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe

"C:\Users\Admin\AppData\Local\Temp\lab_samples\1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.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 --field-trial-handle=4172,i,8447163055677043976,7218082390179600880,262144 --variations-seed-version --mojo-platform-channel-handle=3756 /prefetch:8

C:\Program Files (x86)\Internet Explorer\iexplore.exe

"C:\Program Files (x86)\Internet Explorer\iexplore.exe"

C:\Program Files (x86)\Internet Explorer\iexplore.exe

"C:\Program Files (x86)\Internet Explorer\iexplore.exe"

C:\Program Files (x86)\Internet Explorer\iexplore.exe

"C:\Program Files (x86)\Internet Explorer\iexplore.exe"

C:\Program Files (x86)\Internet Explorer\iexplore.exe

"C:\Program Files (x86)\Internet Explorer\iexplore.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
US 8.8.8.8:53 144.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 13.107.42.16:443 tcp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 95.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 axroot.com udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 axroot.com udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 axroot.com udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp
US 8.8.8.8:53 axroot.com udp

Files

memory/3208-0-0x0000000000910000-0x0000000000911000-memory.dmp

memory/3208-1-0x0000000013140000-0x0000000013208000-memory.dmp

memory/3208-3-0x0000000000910000-0x0000000000911000-memory.dmp

memory/3208-4-0x0000000013140000-0x0000000013208000-memory.dmp

memory/64-5-0x0000000013140000-0x0000000013B98000-memory.dmp

memory/3208-6-0x0000000013140000-0x0000000013208000-memory.dmp

memory/3208-7-0x0000000013140000-0x0000000013208000-memory.dmp

memory/3208-8-0x0000000013140000-0x0000000013208000-memory.dmp

memory/3208-10-0x0000000013140000-0x0000000013208000-memory.dmp

memory/3208-11-0x0000000013140000-0x0000000013208000-memory.dmp

memory/3208-13-0x0000000013140000-0x0000000013208000-memory.dmp

memory/3208-15-0x0000000013140000-0x0000000013208000-memory.dmp

memory/3208-16-0x0000000013140000-0x0000000013208000-memory.dmp

memory/3208-18-0x0000000013140000-0x0000000013208000-memory.dmp