Malware Analysis Report

2024-12-08 01:38

Sample ID 240428-css68aeb57
Target df9bf21bdbcd5a27ad3a7d230070135ab62ae4bb4ca18efefaa58d065242bd4d
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 df9bf21bdbcd5a27ad3a7d230070135ab62ae4bb4ca18efefaa58d065242bd4d was found to be: Known bad.

Malicious Activity Summary

sectoprat stealc discovery rat spyware stealer trojan

SectopRAT payload

Stealc

SectopRAT

Downloads MZ/PE file

Executes dropped EXE

Loads dropped DLL

Reads data files stored by FTP clients

Reads user/profile data of web browsers

Checks installed software on the system

Accesses cryptocurrency files/wallets, possible credential harvesting

Suspicious use of SetThreadContext

Unsigned PE

Enumerates physical storage devices

Program crash

Checks processor information in registry

Suspicious behavior: MapViewOfSection

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-28 02:20

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-28 02:20

Reported

2024-04-28 02:23

Platform

win10v2004-20240419-en

Max time kernel

67s

Max time network

37s

Command Line

"C:\Users\Admin\AppData\Local\Temp\df9bf21bdbcd5a27ad3a7d230070135ab62ae4bb4ca18efefaa58d065242bd4d.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\df9bf21bdbcd5a27ad3a7d230070135ab62ae4bb4ca18efefaa58d065242bd4d.exe

"C:\Users\Admin\AppData\Local\Temp\df9bf21bdbcd5a27ad3a7d230070135ab62ae4bb4ca18efefaa58d065242bd4d.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 816 -ip 816

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 816 -s 720

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

Files

memory/816-1-0x0000000001D60000-0x0000000001E60000-memory.dmp

memory/816-2-0x0000000001CD0000-0x0000000001D3D000-memory.dmp

memory/816-3-0x0000000000400000-0x0000000001A3D000-memory.dmp

memory/816-5-0x0000000001D60000-0x0000000001E60000-memory.dmp

memory/816-6-0x0000000000400000-0x0000000001A3D000-memory.dmp

memory/816-9-0x0000000000400000-0x0000000001A3D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-28 02:20

Reported

2024-04-28 02:23

Platform

win11-20240426-en

Max time kernel

108s

Max time network

109s

Command Line

"C:\Users\Admin\AppData\Local\Temp\df9bf21bdbcd5a27ad3a7d230070135ab62ae4bb4ca18efefaa58d065242bd4d.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\u344.0.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\u344.2\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 2916 set thread context of 3708 N/A C:\Users\Admin\AppData\Local\Temp\u344.2\run.exe C:\Windows\SysWOW64\cmd.exe
PID 3708 set thread context of 3472 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\u344.0.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\u344.0.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\u344.2\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\u344.2\run.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\u344.2\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 4036 wrote to memory of 4628 N/A C:\Users\Admin\AppData\Local\Temp\df9bf21bdbcd5a27ad3a7d230070135ab62ae4bb4ca18efefaa58d065242bd4d.exe C:\Users\Admin\AppData\Local\Temp\u344.0.exe
PID 4036 wrote to memory of 4628 N/A C:\Users\Admin\AppData\Local\Temp\df9bf21bdbcd5a27ad3a7d230070135ab62ae4bb4ca18efefaa58d065242bd4d.exe C:\Users\Admin\AppData\Local\Temp\u344.0.exe
PID 4036 wrote to memory of 4628 N/A C:\Users\Admin\AppData\Local\Temp\df9bf21bdbcd5a27ad3a7d230070135ab62ae4bb4ca18efefaa58d065242bd4d.exe C:\Users\Admin\AppData\Local\Temp\u344.0.exe
PID 4036 wrote to memory of 2916 N/A C:\Users\Admin\AppData\Local\Temp\df9bf21bdbcd5a27ad3a7d230070135ab62ae4bb4ca18efefaa58d065242bd4d.exe C:\Users\Admin\AppData\Local\Temp\u344.2\run.exe
PID 4036 wrote to memory of 2916 N/A C:\Users\Admin\AppData\Local\Temp\df9bf21bdbcd5a27ad3a7d230070135ab62ae4bb4ca18efefaa58d065242bd4d.exe C:\Users\Admin\AppData\Local\Temp\u344.2\run.exe
PID 4036 wrote to memory of 2916 N/A C:\Users\Admin\AppData\Local\Temp\df9bf21bdbcd5a27ad3a7d230070135ab62ae4bb4ca18efefaa58d065242bd4d.exe C:\Users\Admin\AppData\Local\Temp\u344.2\run.exe
PID 2916 wrote to memory of 3708 N/A C:\Users\Admin\AppData\Local\Temp\u344.2\run.exe C:\Windows\SysWOW64\cmd.exe
PID 2916 wrote to memory of 3708 N/A C:\Users\Admin\AppData\Local\Temp\u344.2\run.exe C:\Windows\SysWOW64\cmd.exe
PID 2916 wrote to memory of 3708 N/A C:\Users\Admin\AppData\Local\Temp\u344.2\run.exe C:\Windows\SysWOW64\cmd.exe
PID 2916 wrote to memory of 3708 N/A C:\Users\Admin\AppData\Local\Temp\u344.2\run.exe C:\Windows\SysWOW64\cmd.exe
PID 3708 wrote to memory of 3472 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 3708 wrote to memory of 3472 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 3708 wrote to memory of 3472 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 3708 wrote to memory of 3472 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 3708 wrote to memory of 3472 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe

Processes

C:\Users\Admin\AppData\Local\Temp\df9bf21bdbcd5a27ad3a7d230070135ab62ae4bb4ca18efefaa58d065242bd4d.exe

"C:\Users\Admin\AppData\Local\Temp\df9bf21bdbcd5a27ad3a7d230070135ab62ae4bb4ca18efefaa58d065242bd4d.exe"

C:\Users\Admin\AppData\Local\Temp\u344.0.exe

"C:\Users\Admin\AppData\Local\Temp\u344.0.exe"

C:\Users\Admin\AppData\Local\Temp\u344.2\run.exe

"C:\Users\Admin\AppData\Local\Temp\u344.2\run.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4036 -ip 4036

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4036 -s 1568

C:\Windows\SysWOW64\cmd.exe

C:\Windows\SysWOW64\cmd.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 4628 -ip 4628

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4628 -s 1412

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 8.8.8.8:53 228.128.172.185.in-addr.arpa udp
RO 176.97.76.106:80 note.padd.cn.com tcp
DE 185.172.128.76:80 185.172.128.76 tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 106.76.97.176.in-addr.arpa udp
RU 91.215.85.66:15647 tcp
RU 91.215.85.66:9000 tcp

Files

memory/4036-1-0x0000000001C80000-0x0000000001D80000-memory.dmp

memory/4036-2-0x0000000003760000-0x00000000037CD000-memory.dmp

memory/4036-3-0x0000000000400000-0x0000000001A3D000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\u344.0.exe

MD5 6a1950539f96cbb2cf816a413a68e07f
SHA1 6bff7074f3bfc7dfa00dd188ab8b620a8d986cc7
SHA256 aa26475eeea5b19d3d052637a9e988e0250ae16190807889fc255065687c8780
SHA512 be12aa463be7df2d66e6fbda1bb9eb783328b72e4b001904574d9541b9e13ad343e3e58f0febdf1196d39d69835b60a3bd475d3ed978945415f423c4fc0ef02d

memory/4628-14-0x0000000001BB0000-0x0000000001BD7000-memory.dmp

memory/4628-13-0x0000000001BE0000-0x0000000001CE0000-memory.dmp

memory/4628-15-0x0000000000400000-0x0000000001A19000-memory.dmp

memory/4628-16-0x0000000061E00000-0x0000000061EF3000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\u344.1.zip

MD5 78d3ca6355c93c72b494bb6a498bf639
SHA1 2fa4e5df74bfe75c207c881a1b0d3bc1c62c8b0e
SHA256 a1dd547a63b256aa6a16871ed03f8b025226f7617e67b8817a08444df077b001
SHA512 1b2df7bee2514aee7efd3579f5dd33c76b40606d07dba69a34c45747662fad61174db4931bca02b058830107959205e889fee74f8ccc9f6e03f9fd111761f4ea

C:\Users\Admin\AppData\Local\Temp\u344.2\run.exe

MD5 9fb4770ced09aae3b437c1c6eb6d7334
SHA1 fe54b31b0db8665aa5b22bed147e8295afc88a03
SHA256 a05b592a971fe5011554013bcfe9a4aaf9cfc633bdd1fe3a8197f213d557b8d3
SHA512 140fee6daf23fe8b7e441b3b4de83554af804f00ecedc421907a385ac79a63164bd9f28b4be061c2ea2262755d85e14d3a8e7dc910547837b664d78d93667256

C:\Users\Admin\AppData\Local\Temp\u344.2\whale.dbf

MD5 a723bf46048e0bfb15b8d77d7a648c3e
SHA1 8952d3c34e9341e4425571e10f22b782695bb915
SHA256 b440170853bdb43b66497f701aee2901080326975140b095a1669cb9dee13422
SHA512 ca8ea2f7f3c7af21b5673a0a3f2611b6580a7ed02efa2cfd8b343eb644ff09682bde43b25ef7aab68530d5ce31dcbd252c382dd336ecb610d4c4ebde78347273

C:\Users\Admin\AppData\Local\Temp\u344.2\relay.dll

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

C:\Users\Admin\AppData\Local\Temp\u344.2\bunch.dat

MD5 1e8237d3028ab52821d69099e0954f97
SHA1 30a6ae353adda0c471c6ed5b7a2458b07185abf2
SHA256 9387488f9d338e211be2cb45109bf590a5070180bc0d4a703f70d3cb3c4e1742
SHA512 a6406d7c18694ee014d59df581f1f76e980b68e3361ae680dc979606a423eba48d35e37f143154dd97fe5f066baf0ea51a2e9f8bc822d593e1cba70ead6559f3

memory/2916-143-0x0000000071F70000-0x00000000720ED000-memory.dmp

memory/2916-144-0x00007FFE38F80000-0x00007FFE39189000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\u344.2\UIxMarketPlugin.dll

MD5 d1ba9412e78bfc98074c5d724a1a87d6
SHA1 0572f98d78fb0b366b5a086c2a74cc68b771d368
SHA256 cbcea8f28d8916219d1e8b0a8ca2db17e338eb812431bc4ad0cb36c06fd67f15
SHA512 8765de36d3824b12c0a4478c31b985878d4811bd0e5b6fba4ea07f8c76340bd66a2da3490d4871b95d9a12f96efc25507dfd87f431de211664dbe9a9c914af6f

memory/4036-156-0x0000000000400000-0x0000000001A3D000-memory.dmp

C:\ProgramData\mozglue.dll

MD5 c8fd9be83bc728cc04beffafc2907fe9
SHA1 95ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256 ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512 fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

C:\ProgramData\nss3.dll

MD5 1cc453cdf74f31e4d913ff9c10acdde2
SHA1 6e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA256 ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
SHA512 dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

C:\ProgramData\Are.docx

MD5 a33e5b189842c5867f46566bdbf7a095
SHA1 e1c06359f6a76da90d19e8fd95e79c832edb3196
SHA256 5abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454
SHA512 f2ad3812ec9b915e9618539b0f103f2e9acaad25fbbacd84941c954ce070af231324e83a4621e951c1dbae8d40d50410954e40dd52bbd46e34c54b0d1957407b

memory/4628-183-0x0000000000400000-0x0000000001A19000-memory.dmp

memory/2916-184-0x0000000071F70000-0x00000000720ED000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\8d6fe515

MD5 a45f0c2317cf8adc980229d30d489539
SHA1 50975365f132944b63bc973b554f80237ce4566e
SHA256 b79eeda3b5928fdbee2e53bfba0c0687452ef5ba924392f35e42c4af59199f3c
SHA512 214cf7f8d852c8715c5a45a4f592b2974834fc05f4c9be162a281bb48fa118b87ae1c0b130d2fdb6c6eb694da90eb42bc17dbd525697e95c2d07f893db44b12e

memory/3708-187-0x00007FFE38F80000-0x00007FFE39189000-memory.dmp

memory/3708-189-0x0000000071F70000-0x00000000720ED000-memory.dmp

memory/3472-191-0x0000000072F50000-0x0000000074267000-memory.dmp

memory/3472-194-0x0000000000B80000-0x0000000000C46000-memory.dmp

memory/3472-195-0x00000000053F0000-0x0000000005482000-memory.dmp

memory/3472-196-0x0000000005A40000-0x0000000005FE6000-memory.dmp

memory/3472-197-0x0000000005660000-0x0000000005822000-memory.dmp

memory/3472-198-0x0000000005490000-0x0000000005506000-memory.dmp

memory/3472-199-0x0000000005510000-0x0000000005560000-memory.dmp

memory/3472-200-0x0000000005300000-0x000000000530A000-memory.dmp

memory/3472-201-0x0000000006620000-0x0000000006B4C000-memory.dmp

memory/3472-202-0x0000000005A00000-0x0000000005A1E000-memory.dmp

memory/3472-203-0x0000000006180000-0x00000000061E6000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmpE810.tmp

MD5 22be08f683bcc01d7a9799bbd2c10041
SHA1 2efb6041cf3d6e67970135e592569c76fc4c41de
SHA256 451c2c0cf3b7cb412a05347c6e75ed8680f0d2e5f2ab0f64cc2436db9309a457
SHA512 0eef192b3d5abe5d2435acf54b42c729c3979e4ad0b73d36666521458043ee7df1e10386bef266d7df9c31db94fb2833152bb2798936cb2082715318ef05d936

memory/3472-216-0x00000000079D0000-0x00000000079DA000-memory.dmp