Malware Analysis Report

2024-12-08 01:38

Sample ID 240428-c6ewraed49
Target 4fe50d7ebbbbc20cd513cc300952a3c8.exe
SHA256 df9bf21bdbcd5a27ad3a7d230070135ab62ae4bb4ca18efefaa58d065242bd4d
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

df9bf21bdbcd5a27ad3a7d230070135ab62ae4bb4ca18efefaa58d065242bd4d

Threat Level: Known bad

The file 4fe50d7ebbbbc20cd513cc300952a3c8.exe was found to be: Known bad.

Malicious Activity Summary

sectoprat stealc discovery rat spyware stealer trojan

Stealc

SectopRAT payload

SectopRAT

Downloads MZ/PE file

Loads dropped DLL

Reads user/profile data of web browsers

Reads data files stored by FTP clients

Executes dropped EXE

Accesses cryptocurrency files/wallets, possible credential harvesting

Checks installed software on the system

Suspicious use of SetThreadContext

Unsigned PE

Enumerates physical storage devices

Program crash

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious behavior: MapViewOfSection

Checks processor information in registry

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-28 02:41

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-28 02:41

Reported

2024-04-28 02:43

Platform

win7-20240221-en

Max time kernel

132s

Max time network

137s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4fe50d7ebbbbc20cd513cc300952a3c8.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\uvk.0.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\uvk.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 1724 set thread context of 2044 N/A C:\Users\Admin\AppData\Local\Temp\uvk.2\run.exe C:\Windows\SysWOW64\cmd.exe
PID 2044 set thread context of 612 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\uvk.0.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\uvk.0.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\uvk.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\uvk.2\run.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\uvk.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 1136 wrote to memory of 2280 N/A C:\Users\Admin\AppData\Local\Temp\4fe50d7ebbbbc20cd513cc300952a3c8.exe C:\Users\Admin\AppData\Local\Temp\uvk.0.exe
PID 1136 wrote to memory of 2280 N/A C:\Users\Admin\AppData\Local\Temp\4fe50d7ebbbbc20cd513cc300952a3c8.exe C:\Users\Admin\AppData\Local\Temp\uvk.0.exe
PID 1136 wrote to memory of 2280 N/A C:\Users\Admin\AppData\Local\Temp\4fe50d7ebbbbc20cd513cc300952a3c8.exe C:\Users\Admin\AppData\Local\Temp\uvk.0.exe
PID 1136 wrote to memory of 2280 N/A C:\Users\Admin\AppData\Local\Temp\4fe50d7ebbbbc20cd513cc300952a3c8.exe C:\Users\Admin\AppData\Local\Temp\uvk.0.exe
PID 1136 wrote to memory of 1724 N/A C:\Users\Admin\AppData\Local\Temp\4fe50d7ebbbbc20cd513cc300952a3c8.exe C:\Users\Admin\AppData\Local\Temp\uvk.2\run.exe
PID 1136 wrote to memory of 1724 N/A C:\Users\Admin\AppData\Local\Temp\4fe50d7ebbbbc20cd513cc300952a3c8.exe C:\Users\Admin\AppData\Local\Temp\uvk.2\run.exe
PID 1136 wrote to memory of 1724 N/A C:\Users\Admin\AppData\Local\Temp\4fe50d7ebbbbc20cd513cc300952a3c8.exe C:\Users\Admin\AppData\Local\Temp\uvk.2\run.exe
PID 1136 wrote to memory of 1724 N/A C:\Users\Admin\AppData\Local\Temp\4fe50d7ebbbbc20cd513cc300952a3c8.exe C:\Users\Admin\AppData\Local\Temp\uvk.2\run.exe
PID 1136 wrote to memory of 1724 N/A C:\Users\Admin\AppData\Local\Temp\4fe50d7ebbbbc20cd513cc300952a3c8.exe C:\Users\Admin\AppData\Local\Temp\uvk.2\run.exe
PID 1136 wrote to memory of 1724 N/A C:\Users\Admin\AppData\Local\Temp\4fe50d7ebbbbc20cd513cc300952a3c8.exe C:\Users\Admin\AppData\Local\Temp\uvk.2\run.exe
PID 1136 wrote to memory of 1724 N/A C:\Users\Admin\AppData\Local\Temp\4fe50d7ebbbbc20cd513cc300952a3c8.exe C:\Users\Admin\AppData\Local\Temp\uvk.2\run.exe
PID 1724 wrote to memory of 2044 N/A C:\Users\Admin\AppData\Local\Temp\uvk.2\run.exe C:\Windows\SysWOW64\cmd.exe
PID 1724 wrote to memory of 2044 N/A C:\Users\Admin\AppData\Local\Temp\uvk.2\run.exe C:\Windows\SysWOW64\cmd.exe
PID 1724 wrote to memory of 2044 N/A C:\Users\Admin\AppData\Local\Temp\uvk.2\run.exe C:\Windows\SysWOW64\cmd.exe
PID 1724 wrote to memory of 2044 N/A C:\Users\Admin\AppData\Local\Temp\uvk.2\run.exe C:\Windows\SysWOW64\cmd.exe
PID 1724 wrote to memory of 2044 N/A C:\Users\Admin\AppData\Local\Temp\uvk.2\run.exe C:\Windows\SysWOW64\cmd.exe
PID 2044 wrote to memory of 612 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 2044 wrote to memory of 612 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 2044 wrote to memory of 612 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 2044 wrote to memory of 612 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 2044 wrote to memory of 612 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 2044 wrote to memory of 612 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe

Processes

C:\Users\Admin\AppData\Local\Temp\4fe50d7ebbbbc20cd513cc300952a3c8.exe

"C:\Users\Admin\AppData\Local\Temp\4fe50d7ebbbbc20cd513cc300952a3c8.exe"

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

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

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

"C:\Users\Admin\AppData\Local\Temp\uvk.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 185.172.128.76:80 185.172.128.76 tcp
RU 91.215.85.66:15647 tcp
RU 91.215.85.66:9000 tcp

Files

memory/1136-2-0x0000000003190000-0x00000000031FD000-memory.dmp

memory/1136-1-0x0000000000280000-0x0000000000380000-memory.dmp

memory/1136-3-0x0000000000400000-0x0000000001A3D000-memory.dmp

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

MD5 6a1950539f96cbb2cf816a413a68e07f
SHA1 6bff7074f3bfc7dfa00dd188ab8b620a8d986cc7
SHA256 aa26475eeea5b19d3d052637a9e988e0250ae16190807889fc255065687c8780
SHA512 be12aa463be7df2d66e6fbda1bb9eb783328b72e4b001904574d9541b9e13ad343e3e58f0febdf1196d39d69835b60a3bd475d3ed978945415f423c4fc0ef02d

memory/2280-20-0x0000000061E00000-0x0000000061EF3000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\UVK1~1.ZIP

MD5 78d3ca6355c93c72b494bb6a498bf639
SHA1 2fa4e5df74bfe75c207c881a1b0d3bc1c62c8b0e
SHA256 a1dd547a63b256aa6a16871ed03f8b025226f7617e67b8817a08444df077b001
SHA512 1b2df7bee2514aee7efd3579f5dd33c76b40606d07dba69a34c45747662fad61174db4931bca02b058830107959205e889fee74f8ccc9f6e03f9fd111761f4ea

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

MD5 9fb4770ced09aae3b437c1c6eb6d7334
SHA1 fe54b31b0db8665aa5b22bed147e8295afc88a03
SHA256 a05b592a971fe5011554013bcfe9a4aaf9cfc633bdd1fe3a8197f213d557b8d3
SHA512 140fee6daf23fe8b7e441b3b4de83554af804f00ecedc421907a385ac79a63164bd9f28b4be061c2ea2262755d85e14d3a8e7dc910547837b664d78d93667256

memory/1136-138-0x0000000000280000-0x0000000000380000-memory.dmp

memory/1136-137-0x0000000000400000-0x0000000001A3D000-memory.dmp

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

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

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

MD5 a723bf46048e0bfb15b8d77d7a648c3e
SHA1 8952d3c34e9341e4425571e10f22b782695bb915
SHA256 b440170853bdb43b66497f701aee2901080326975140b095a1669cb9dee13422
SHA512 ca8ea2f7f3c7af21b5673a0a3f2611b6580a7ed02efa2cfd8b343eb644ff09682bde43b25ef7aab68530d5ce31dcbd252c382dd336ecb610d4c4ebde78347273

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

MD5 1e8237d3028ab52821d69099e0954f97
SHA1 30a6ae353adda0c471c6ed5b7a2458b07185abf2
SHA256 9387488f9d338e211be2cb45109bf590a5070180bc0d4a703f70d3cb3c4e1742
SHA512 a6406d7c18694ee014d59df581f1f76e980b68e3361ae680dc979606a423eba48d35e37f143154dd97fe5f066baf0ea51a2e9f8bc822d593e1cba70ead6559f3

memory/1724-144-0x00000000741B0000-0x0000000074324000-memory.dmp

memory/1724-151-0x0000000077500000-0x00000000776A9000-memory.dmp

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

MD5 d1ba9412e78bfc98074c5d724a1a87d6
SHA1 0572f98d78fb0b366b5a086c2a74cc68b771d368
SHA256 cbcea8f28d8916219d1e8b0a8ca2db17e338eb812431bc4ad0cb36c06fd67f15
SHA512 8765de36d3824b12c0a4478c31b985878d4811bd0e5b6fba4ea07f8c76340bd66a2da3490d4871b95d9a12f96efc25507dfd87f431de211664dbe9a9c914af6f

\ProgramData\nss3.dll

MD5 1cc453cdf74f31e4d913ff9c10acdde2
SHA1 6e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA256 ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
SHA512 dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

\ProgramData\mozglue.dll

MD5 c8fd9be83bc728cc04beffafc2907fe9
SHA1 95ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256 ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512 fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

memory/1724-172-0x00000000741B0000-0x0000000074324000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\1e1cf49d

MD5 736817d1a7740fa2f476b19470bbd3dc
SHA1 70d7f508651626c4bad56d55a581b11468c42c62
SHA256 f4da21cd3660885d32c57665e966c97d291bcc571d3a604c831cbcdf059e8221
SHA512 e1691aaa2d2faaf3eff0aef96cb4976eda0ee4a7ebd7680341df658749f07c1388e40fb727f30fd9c51d9b58a280491a8dd3053aec1a628a91c5359ac2a476fc

memory/2280-175-0x0000000000400000-0x0000000001A19000-memory.dmp

memory/2280-181-0x0000000000400000-0x0000000001A19000-memory.dmp

memory/2044-182-0x0000000077500000-0x00000000776A9000-memory.dmp

memory/2044-228-0x00000000741B0000-0x0000000074324000-memory.dmp

memory/612-232-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

memory/612-231-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

memory/612-230-0x0000000072B30000-0x0000000073B92000-memory.dmp

memory/612-233-0x0000000000400000-0x00000000004C6000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp41C2.tmp

MD5 c9ff7748d8fcef4cf84a5501e996a641
SHA1 02867e5010f62f97ebb0cfb32cb3ede9449fe0c9
SHA256 4d3f3194cb1133437aa69bb880c8cbb55ddf06ff61a88ca6c3f1bbfbfd35d988
SHA512 d36054499869a8f56ac8547ccd5455f1252c24e17d2b185955390b32da7e2a732ace4e0f30f9493fcc61425a2e31ed623465f998f41af69423ee0e3ed1483a73

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-28 02:41

Reported

2024-04-28 02:43

Platform

win10v2004-20240419-en

Max time kernel

66s

Max time network

52s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4fe50d7ebbbbc20cd513cc300952a3c8.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\4fe50d7ebbbbc20cd513cc300952a3c8.exe

"C:\Users\Admin\AppData\Local\Temp\4fe50d7ebbbbc20cd513cc300952a3c8.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3916 -ip 3916

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3916 -s 728

Network

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

Files

memory/3916-1-0x0000000001CC0000-0x0000000001DC0000-memory.dmp

memory/3916-2-0x0000000003660000-0x00000000036CD000-memory.dmp

memory/3916-3-0x0000000000400000-0x0000000001A3D000-memory.dmp

memory/3916-5-0x0000000001CC0000-0x0000000001DC0000-memory.dmp

memory/3916-7-0x0000000003660000-0x00000000036CD000-memory.dmp

memory/3916-6-0x0000000000400000-0x0000000001A3D000-memory.dmp

memory/3916-10-0x0000000000400000-0x0000000001A3D000-memory.dmp