Malware Analysis Report

2024-11-13 19:17

Sample ID 240429-mkdfxagg9x
Target 850a2a0eee8fe41dc2b84bcf4f692aa2.exe
SHA256 eda9de6005d8b240fcd625ca6e2c2ec385343f2fb88c9d7233892e8302488a9f
Tags
sectoprat stealc discovery rat spyware stealer trojan
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

eda9de6005d8b240fcd625ca6e2c2ec385343f2fb88c9d7233892e8302488a9f

Threat Level: Known bad

The file 850a2a0eee8fe41dc2b84bcf4f692aa2.exe was found to be: Known bad.

Malicious Activity Summary

sectoprat stealc discovery rat spyware stealer trojan

SectopRAT

Stealc

SectopRAT payload

Downloads MZ/PE file

Reads user/profile data of web browsers

Loads dropped DLL

Executes dropped EXE

Reads data files stored by FTP clients

Accesses cryptocurrency files/wallets, possible credential harvesting

Checks installed software on the system

Suspicious use of SetThreadContext

Unsigned PE

Program crash

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-29 10:31

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-29 10:31

Reported

2024-04-29 10:33

Platform

win7-20240220-en

Max time kernel

120s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\850a2a0eee8fe41dc2b84bcf4f692aa2.exe"

Signatures

SectopRAT

trojan rat sectoprat

SectopRAT payload

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

Stealc

stealer stealc

Downloads MZ/PE file

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\u1r8.0.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\u1r8.2\run.exe N/A

Reads data files stored by FTP clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Accesses cryptocurrency files/wallets, possible credential harvesting

spyware

Checks installed software on the system

discovery

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2344 set thread context of 1732 N/A C:\Users\Admin\AppData\Local\Temp\u1r8.2\run.exe C:\Windows\SysWOW64\cmd.exe
PID 1732 set thread context of 1360 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe

Enumerates physical storage devices

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\u1r8.0.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\u1r8.0.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\u1r8.2\run.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\u1r8.2\run.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\u1r8.2\run.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2276 wrote to memory of 2544 N/A C:\Users\Admin\AppData\Local\Temp\850a2a0eee8fe41dc2b84bcf4f692aa2.exe C:\Users\Admin\AppData\Local\Temp\u1r8.0.exe
PID 2276 wrote to memory of 2544 N/A C:\Users\Admin\AppData\Local\Temp\850a2a0eee8fe41dc2b84bcf4f692aa2.exe C:\Users\Admin\AppData\Local\Temp\u1r8.0.exe
PID 2276 wrote to memory of 2544 N/A C:\Users\Admin\AppData\Local\Temp\850a2a0eee8fe41dc2b84bcf4f692aa2.exe C:\Users\Admin\AppData\Local\Temp\u1r8.0.exe
PID 2276 wrote to memory of 2544 N/A C:\Users\Admin\AppData\Local\Temp\850a2a0eee8fe41dc2b84bcf4f692aa2.exe C:\Users\Admin\AppData\Local\Temp\u1r8.0.exe
PID 2276 wrote to memory of 2344 N/A C:\Users\Admin\AppData\Local\Temp\850a2a0eee8fe41dc2b84bcf4f692aa2.exe C:\Users\Admin\AppData\Local\Temp\u1r8.2\run.exe
PID 2276 wrote to memory of 2344 N/A C:\Users\Admin\AppData\Local\Temp\850a2a0eee8fe41dc2b84bcf4f692aa2.exe C:\Users\Admin\AppData\Local\Temp\u1r8.2\run.exe
PID 2276 wrote to memory of 2344 N/A C:\Users\Admin\AppData\Local\Temp\850a2a0eee8fe41dc2b84bcf4f692aa2.exe C:\Users\Admin\AppData\Local\Temp\u1r8.2\run.exe
PID 2276 wrote to memory of 2344 N/A C:\Users\Admin\AppData\Local\Temp\850a2a0eee8fe41dc2b84bcf4f692aa2.exe C:\Users\Admin\AppData\Local\Temp\u1r8.2\run.exe
PID 2276 wrote to memory of 2344 N/A C:\Users\Admin\AppData\Local\Temp\850a2a0eee8fe41dc2b84bcf4f692aa2.exe C:\Users\Admin\AppData\Local\Temp\u1r8.2\run.exe
PID 2276 wrote to memory of 2344 N/A C:\Users\Admin\AppData\Local\Temp\850a2a0eee8fe41dc2b84bcf4f692aa2.exe C:\Users\Admin\AppData\Local\Temp\u1r8.2\run.exe
PID 2276 wrote to memory of 2344 N/A C:\Users\Admin\AppData\Local\Temp\850a2a0eee8fe41dc2b84bcf4f692aa2.exe C:\Users\Admin\AppData\Local\Temp\u1r8.2\run.exe
PID 2344 wrote to memory of 1732 N/A C:\Users\Admin\AppData\Local\Temp\u1r8.2\run.exe C:\Windows\SysWOW64\cmd.exe
PID 2344 wrote to memory of 1732 N/A C:\Users\Admin\AppData\Local\Temp\u1r8.2\run.exe C:\Windows\SysWOW64\cmd.exe
PID 2344 wrote to memory of 1732 N/A C:\Users\Admin\AppData\Local\Temp\u1r8.2\run.exe C:\Windows\SysWOW64\cmd.exe
PID 2344 wrote to memory of 1732 N/A C:\Users\Admin\AppData\Local\Temp\u1r8.2\run.exe C:\Windows\SysWOW64\cmd.exe
PID 2344 wrote to memory of 1732 N/A C:\Users\Admin\AppData\Local\Temp\u1r8.2\run.exe C:\Windows\SysWOW64\cmd.exe
PID 1732 wrote to memory of 1360 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 1732 wrote to memory of 1360 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 1732 wrote to memory of 1360 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 1732 wrote to memory of 1360 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 1732 wrote to memory of 1360 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 1732 wrote to memory of 1360 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe

Processes

C:\Users\Admin\AppData\Local\Temp\850a2a0eee8fe41dc2b84bcf4f692aa2.exe

"C:\Users\Admin\AppData\Local\Temp\850a2a0eee8fe41dc2b84bcf4f692aa2.exe"

C:\Users\Admin\AppData\Local\Temp\u1r8.0.exe

"C:\Users\Admin\AppData\Local\Temp\u1r8.0.exe"

C:\Users\Admin\AppData\Local\Temp\u1r8.2\run.exe

"C:\Users\Admin\AppData\Local\Temp\u1r8.2\run.exe"

C:\Windows\SysWOW64\cmd.exe

C:\Windows\SysWOW64\cmd.exe

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

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

Network

Country Destination Domain Proto
DE 185.172.128.228:80 185.172.128.228 tcp
DE 185.172.128.203:80 185.172.128.203 tcp
US 8.8.8.8:53 note.padd.cn.com udp
RO 176.97.76.106:80 note.padd.cn.com tcp
DE 185.172.128.151:80 185.172.128.151 tcp
RU 91.215.85.66:15647 tcp
RU 91.215.85.66:9000 91.215.85.66 tcp

Files

memory/2276-2-0x0000000000240000-0x00000000002AD000-memory.dmp

memory/2276-1-0x0000000002C80000-0x0000000002D80000-memory.dmp

memory/2276-3-0x0000000000400000-0x0000000002B15000-memory.dmp

\Users\Admin\AppData\Local\Temp\u1r8.0.exe

MD5 edb1582f432aa2989cb72b89d999bed7
SHA1 ddcf17c954e7dab5059be86202b9c856f55ace48
SHA256 1c03534e55f231c41f78ad9a110bc391e2c915daa57f3a6cc115819feaa33047
SHA512 13a76b437d2ad5107be3abc5ada669d3c12af24624cef94add531dfb511141622560901c0fe06d47486c52744aeef9d2be297f87d69a7a4330b3882b1ab3fed0

memory/2544-20-0x0000000061E00000-0x0000000061EF3000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\U1R81~1.ZIP

MD5 78d3ca6355c93c72b494bb6a498bf639
SHA1 2fa4e5df74bfe75c207c881a1b0d3bc1c62c8b0e
SHA256 a1dd547a63b256aa6a16871ed03f8b025226f7617e67b8817a08444df077b001
SHA512 1b2df7bee2514aee7efd3579f5dd33c76b40606d07dba69a34c45747662fad61174db4931bca02b058830107959205e889fee74f8ccc9f6e03f9fd111761f4ea

\Users\Admin\AppData\Local\Temp\u1r8.2\run.exe

MD5 9fb4770ced09aae3b437c1c6eb6d7334
SHA1 fe54b31b0db8665aa5b22bed147e8295afc88a03
SHA256 a05b592a971fe5011554013bcfe9a4aaf9cfc633bdd1fe3a8197f213d557b8d3
SHA512 140fee6daf23fe8b7e441b3b4de83554af804f00ecedc421907a385ac79a63164bd9f28b4be061c2ea2262755d85e14d3a8e7dc910547837b664d78d93667256

\ProgramData\nss3.dll

MD5 1cc453cdf74f31e4d913ff9c10acdde2
SHA1 6e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA256 ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
SHA512 dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

\ProgramData\mozglue.dll

MD5 c8fd9be83bc728cc04beffafc2907fe9
SHA1 95ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256 ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512 fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

C:\Users\Admin\AppData\Local\Temp\u1r8.2\relay.dll

MD5 10d51becd0bbce0fab147ff9658c565e
SHA1 4689a18112ff876d3c066bc8c14a08fd6b7b7a4a
SHA256 7b2db9c88f60ed6dd24b1dec321a304564780fdb191a96ec35c051856128f1ed
SHA512 29faf493bb28f7842c905adc5312f31741effb09f841059b53d73b22aea2c4d41d73db10bbf37703d6aeb936ffacbc756a3cc85ba3c0b6a6863ef4d27fefcd29

memory/2276-147-0x0000000000400000-0x0000000002B15000-memory.dmp

memory/2276-154-0x0000000002C80000-0x0000000002D80000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\u1r8.2\whale.dbf

MD5 a723bf46048e0bfb15b8d77d7a648c3e
SHA1 8952d3c34e9341e4425571e10f22b782695bb915
SHA256 b440170853bdb43b66497f701aee2901080326975140b095a1669cb9dee13422
SHA512 ca8ea2f7f3c7af21b5673a0a3f2611b6580a7ed02efa2cfd8b343eb644ff09682bde43b25ef7aab68530d5ce31dcbd252c382dd336ecb610d4c4ebde78347273

C:\Users\Admin\AppData\Local\Temp\u1r8.2\bunch.dat

MD5 1e8237d3028ab52821d69099e0954f97
SHA1 30a6ae353adda0c471c6ed5b7a2458b07185abf2
SHA256 9387488f9d338e211be2cb45109bf590a5070180bc0d4a703f70d3cb3c4e1742
SHA512 a6406d7c18694ee014d59df581f1f76e980b68e3361ae680dc979606a423eba48d35e37f143154dd97fe5f066baf0ea51a2e9f8bc822d593e1cba70ead6559f3

memory/2344-162-0x0000000073130000-0x00000000732A4000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\u1r8.2\UIxMarketPlugin.dll

MD5 d1ba9412e78bfc98074c5d724a1a87d6
SHA1 0572f98d78fb0b366b5a086c2a74cc68b771d368
SHA256 cbcea8f28d8916219d1e8b0a8ca2db17e338eb812431bc4ad0cb36c06fd67f15
SHA512 8765de36d3824b12c0a4478c31b985878d4811bd0e5b6fba4ea07f8c76340bd66a2da3490d4871b95d9a12f96efc25507dfd87f431de211664dbe9a9c914af6f

memory/2344-163-0x0000000076DB0000-0x0000000076F59000-memory.dmp

memory/2344-169-0x0000000073130000-0x00000000732A4000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\a2ca7fc9

MD5 2af770a24432365c9c4a4e6c4cec491f
SHA1 c3fd76eca44b09b14d2106ed2c7f4eed1ba8a973
SHA256 6e84acd81f0dc1fbd336eb168847919f70fb027beff784aa3ba62e20d5e3abfd
SHA512 666fbc32a379a6187f2d8e85cd0d6691b178e6dd0a02211e15332748248a9b1841b1260aab6b1ad33834660fbc0dcdf72d761873dffecc0948709faf81d4be48

memory/2544-176-0x0000000000400000-0x0000000002AF0000-memory.dmp

memory/1732-177-0x0000000076DB0000-0x0000000076F59000-memory.dmp

memory/2544-228-0x0000000000400000-0x0000000002AF0000-memory.dmp

memory/1732-229-0x0000000073130000-0x00000000732A4000-memory.dmp

memory/1360-233-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

memory/1360-232-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

memory/1360-231-0x00000000720C0000-0x0000000073122000-memory.dmp

memory/1360-234-0x0000000000400000-0x00000000004C6000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmpC092.tmp

MD5 c9ff7748d8fcef4cf84a5501e996a641
SHA1 02867e5010f62f97ebb0cfb32cb3ede9449fe0c9
SHA256 4d3f3194cb1133437aa69bb880c8cbb55ddf06ff61a88ca6c3f1bbfbfd35d988
SHA512 d36054499869a8f56ac8547ccd5455f1252c24e17d2b185955390b32da7e2a732ace4e0f30f9493fcc61425a2e31ed623465f998f41af69423ee0e3ed1483a73

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-29 10:31

Reported

2024-04-29 10:33

Platform

win10v2004-20240419-en

Max time kernel

66s

Max time network

53s

Command Line

"C:\Users\Admin\AppData\Local\Temp\850a2a0eee8fe41dc2b84bcf4f692aa2.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\850a2a0eee8fe41dc2b84bcf4f692aa2.exe

"C:\Users\Admin\AppData\Local\Temp\850a2a0eee8fe41dc2b84bcf4f692aa2.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 852 -ip 852

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 852 -s 456

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
DE 185.172.128.228:80 tcp
DE 185.172.128.203:80 tcp
US 8.8.8.8:53 g.bing.com udp

Files

memory/852-1-0x0000000002C10000-0x0000000002D10000-memory.dmp

memory/852-2-0x0000000004630000-0x000000000469D000-memory.dmp

memory/852-3-0x0000000000400000-0x0000000002B15000-memory.dmp

memory/852-6-0x0000000002C10000-0x0000000002D10000-memory.dmp

memory/852-7-0x0000000004630000-0x000000000469D000-memory.dmp

memory/852-8-0x0000000000400000-0x0000000002B15000-memory.dmp

memory/852-10-0x0000000000400000-0x0000000002B15000-memory.dmp