Malware Analysis Report

2024-11-16 13:51

Sample ID 240627-elscfstgrn
Target 242214131486132e33ceda794d66ca1f.exe
SHA256 bac402b5749b2da2211db6d2404c1c621ccd0c2e5d492eb6f973b3e2d38dd361
Tags
stealc jopa spyware stealer
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

bac402b5749b2da2211db6d2404c1c621ccd0c2e5d492eb6f973b3e2d38dd361

Threat Level: Known bad

The file 242214131486132e33ceda794d66ca1f.exe was found to be: Known bad.

Malicious Activity Summary

stealc jopa spyware stealer

Stealc

Downloads MZ/PE file

Loads dropped DLL

Accesses cryptocurrency files/wallets, possible credential harvesting

Suspicious use of SetThreadContext

Unsigned PE

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-27 04:02

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-27 04:02

Reported

2024-06-27 04:04

Platform

win7-20240220-en

Max time kernel

122s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\242214131486132e33ceda794d66ca1f.exe"

Signatures

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\242214131486132e33ceda794d66ca1f.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\242214131486132e33ceda794d66ca1f.exe

"C:\Users\Admin\AppData\Local\Temp\242214131486132e33ceda794d66ca1f.exe"

Network

N/A

Files

memory/2208-0-0x000000007488E000-0x000000007488F000-memory.dmp

memory/2208-1-0x0000000001090000-0x00000000011C2000-memory.dmp

\Users\Admin\AppData\Roaming\d3d9.dll

MD5 8fa26f1e37d3ff7f736fc93d520bc8ab
SHA1 ad532e1cb4a1b3cd82c7a85647f8f6dd99833bb1
SHA256 6c47da8fbd12f22d7272fbf223e054bf5093c0922d0e8fb7d6289a5913c2e45d
SHA512 8a0b53cbc3a20e2f0fd41c486b1af1fbbcf7f2fed9f7368b672a07f25faaa2568bbdbcf0841233ac8c473a4d1dee099e90bf6098a6fa15e44b8526efdafc1287

memory/2208-6-0x0000000075C40000-0x0000000075D01000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-27 04:02

Reported

2024-06-27 04:04

Platform

win10v2004-20240508-en

Max time kernel

125s

Max time network

131s

Command Line

"C:\Users\Admin\AppData\Local\Temp\242214131486132e33ceda794d66ca1f.exe"

Signatures

Stealc

stealer stealc

Downloads MZ/PE file

Accesses cryptocurrency files/wallets, possible credential harvesting

spyware

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4840 set thread context of 1436 N/A C:\Users\Admin\AppData\Local\Temp\242214131486132e33ceda794d66ca1f.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4840 wrote to memory of 1436 N/A C:\Users\Admin\AppData\Local\Temp\242214131486132e33ceda794d66ca1f.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe
PID 4840 wrote to memory of 1436 N/A C:\Users\Admin\AppData\Local\Temp\242214131486132e33ceda794d66ca1f.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe
PID 4840 wrote to memory of 1436 N/A C:\Users\Admin\AppData\Local\Temp\242214131486132e33ceda794d66ca1f.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe
PID 4840 wrote to memory of 1436 N/A C:\Users\Admin\AppData\Local\Temp\242214131486132e33ceda794d66ca1f.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe
PID 4840 wrote to memory of 1436 N/A C:\Users\Admin\AppData\Local\Temp\242214131486132e33ceda794d66ca1f.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe
PID 4840 wrote to memory of 1436 N/A C:\Users\Admin\AppData\Local\Temp\242214131486132e33ceda794d66ca1f.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe
PID 4840 wrote to memory of 1436 N/A C:\Users\Admin\AppData\Local\Temp\242214131486132e33ceda794d66ca1f.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe
PID 4840 wrote to memory of 1436 N/A C:\Users\Admin\AppData\Local\Temp\242214131486132e33ceda794d66ca1f.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe
PID 4840 wrote to memory of 1436 N/A C:\Users\Admin\AppData\Local\Temp\242214131486132e33ceda794d66ca1f.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe

Processes

C:\Users\Admin\AppData\Local\Temp\242214131486132e33ceda794d66ca1f.exe

"C:\Users\Admin\AppData\Local\Temp\242214131486132e33ceda794d66ca1f.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.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 --field-trial-handle=4212,i,14486271492189381216,15799931579469722648,262144 --variations-seed-version --mojo-platform-channel-handle=4352 /prefetch:8

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

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-appcompat-clear --field-trial-handle=4128,i,14486271492189381216,15799931579469722648,262144 --variations-seed-version --mojo-platform-channel-handle=2612 /prefetch:3

Network

Country Destination Domain Proto
DE 65.21.175.0:80 65.21.175.0 tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 0.175.21.65.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp

Files

memory/4840-0-0x0000000074B9E000-0x0000000074B9F000-memory.dmp

memory/4840-1-0x0000000000A10000-0x0000000000B42000-memory.dmp

C:\Users\Admin\AppData\Roaming\d3d9.dll

MD5 8fa26f1e37d3ff7f736fc93d520bc8ab
SHA1 ad532e1cb4a1b3cd82c7a85647f8f6dd99833bb1
SHA256 6c47da8fbd12f22d7272fbf223e054bf5093c0922d0e8fb7d6289a5913c2e45d
SHA512 8a0b53cbc3a20e2f0fd41c486b1af1fbbcf7f2fed9f7368b672a07f25faaa2568bbdbcf0841233ac8c473a4d1dee099e90bf6098a6fa15e44b8526efdafc1287

memory/1436-8-0x0000000000400000-0x000000000063C000-memory.dmp

memory/1436-11-0x0000000000400000-0x000000000063C000-memory.dmp

memory/1436-13-0x0000000000400000-0x000000000063C000-memory.dmp

memory/4840-12-0x0000000074B90000-0x0000000075340000-memory.dmp

memory/1436-14-0x0000000061E00000-0x0000000061EF3000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\SCT Auditing Pending Reports

MD5 d751713988987e9331980363e24189ce
SHA1 97d170e1550eee4afc0af065b78cda302a97674c
SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
SHA512 b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af

C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\Sdch Dictionaries

MD5 20d4b8fa017a12a108c87f540836e250
SHA1 1ac617fac131262b6d3ce1f52f5907e31d5f6f00
SHA256 6028bd681dbf11a0a58dde8a0cd884115c04caa59d080ba51bde1b086ce0079d
SHA512 507b2b8a8a168ff8f2bdafa5d9d341c44501a5f17d9f63f3d43bd586bc9e8ae33221887869fa86f845b7d067cb7d2a7009efd71dda36e03a40a74fee04b86856

memory/1436-73-0x0000000000400000-0x000000000063C000-memory.dmp

C:\ProgramData\nss3.dll

MD5 1cc453cdf74f31e4d913ff9c10acdde2
SHA1 6e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA256 ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
SHA512 dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

C:\ProgramData\mozglue.dll

MD5 c8fd9be83bc728cc04beffafc2907fe9
SHA1 95ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256 ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512 fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

memory/1436-96-0x0000000000400000-0x000000000063C000-memory.dmp