Malware Analysis Report

2024-11-13 19:17

Sample ID 240429-l3h9fafh87
Target eda9de6005d8b240fcd625ca6e2c2ec385343f2fb88c9d7233892e8302488a9f
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 eda9de6005d8b240fcd625ca6e2c2ec385343f2fb88c9d7233892e8302488a9f was found to be: Known bad.

Malicious Activity Summary

sectoprat stealc discovery rat spyware stealer trojan

Stealc

SectopRAT payload

SectopRAT

Downloads MZ/PE file

Reads data files stored by FTP clients

Executes dropped EXE

Loads dropped DLL

Reads user/profile data of web browsers

Accesses cryptocurrency files/wallets, possible credential harvesting

Checks installed software on the system

Suspicious use of SetThreadContext

Enumerates physical storage devices

Program crash

Unsigned PE

Checks processor information in registry

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: MapViewOfSection

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-29 10:03

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-29 10:03

Reported

2024-04-29 10:05

Platform

win10v2004-20240419-en

Max time kernel

66s

Max time network

53s

Command Line

"C:\Users\Admin\AppData\Local\Temp\eda9de6005d8b240fcd625ca6e2c2ec385343f2fb88c9d7233892e8302488a9f.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\eda9de6005d8b240fcd625ca6e2c2ec385343f2fb88c9d7233892e8302488a9f.exe

"C:\Users\Admin\AppData\Local\Temp\eda9de6005d8b240fcd625ca6e2c2ec385343f2fb88c9d7233892e8302488a9f.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4748 -ip 4748

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4748 -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/4748-2-0x0000000004790000-0x00000000047FD000-memory.dmp

memory/4748-1-0x0000000002CF0000-0x0000000002DF0000-memory.dmp

memory/4748-3-0x0000000000400000-0x0000000002B15000-memory.dmp

memory/4748-7-0x0000000002CF0000-0x0000000002DF0000-memory.dmp

memory/4748-6-0x0000000000400000-0x0000000002B15000-memory.dmp

memory/4748-9-0x0000000000400000-0x0000000002B15000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-29 10:03

Reported

2024-04-29 10:05

Platform

win11-20240426-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\eda9de6005d8b240fcd625ca6e2c2ec385343f2fb88c9d7233892e8302488a9f.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\u2k8.0.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\u2k8.2\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 1860 set thread context of 3684 N/A C:\Users\Admin\AppData\Local\Temp\u2k8.2\run.exe C:\Windows\SysWOW64\cmd.exe
PID 3684 set thread context of 3376 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\u2k8.0.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\u2k8.0.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\u2k8.2\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\u2k8.2\run.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\u2k8.2\run.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3320 wrote to memory of 8 N/A C:\Users\Admin\AppData\Local\Temp\eda9de6005d8b240fcd625ca6e2c2ec385343f2fb88c9d7233892e8302488a9f.exe C:\Users\Admin\AppData\Local\Temp\u2k8.0.exe
PID 3320 wrote to memory of 8 N/A C:\Users\Admin\AppData\Local\Temp\eda9de6005d8b240fcd625ca6e2c2ec385343f2fb88c9d7233892e8302488a9f.exe C:\Users\Admin\AppData\Local\Temp\u2k8.0.exe
PID 3320 wrote to memory of 8 N/A C:\Users\Admin\AppData\Local\Temp\eda9de6005d8b240fcd625ca6e2c2ec385343f2fb88c9d7233892e8302488a9f.exe C:\Users\Admin\AppData\Local\Temp\u2k8.0.exe
PID 3320 wrote to memory of 1860 N/A C:\Users\Admin\AppData\Local\Temp\eda9de6005d8b240fcd625ca6e2c2ec385343f2fb88c9d7233892e8302488a9f.exe C:\Users\Admin\AppData\Local\Temp\u2k8.2\run.exe
PID 3320 wrote to memory of 1860 N/A C:\Users\Admin\AppData\Local\Temp\eda9de6005d8b240fcd625ca6e2c2ec385343f2fb88c9d7233892e8302488a9f.exe C:\Users\Admin\AppData\Local\Temp\u2k8.2\run.exe
PID 3320 wrote to memory of 1860 N/A C:\Users\Admin\AppData\Local\Temp\eda9de6005d8b240fcd625ca6e2c2ec385343f2fb88c9d7233892e8302488a9f.exe C:\Users\Admin\AppData\Local\Temp\u2k8.2\run.exe
PID 1860 wrote to memory of 3684 N/A C:\Users\Admin\AppData\Local\Temp\u2k8.2\run.exe C:\Windows\SysWOW64\cmd.exe
PID 1860 wrote to memory of 3684 N/A C:\Users\Admin\AppData\Local\Temp\u2k8.2\run.exe C:\Windows\SysWOW64\cmd.exe
PID 1860 wrote to memory of 3684 N/A C:\Users\Admin\AppData\Local\Temp\u2k8.2\run.exe C:\Windows\SysWOW64\cmd.exe
PID 1860 wrote to memory of 3684 N/A C:\Users\Admin\AppData\Local\Temp\u2k8.2\run.exe C:\Windows\SysWOW64\cmd.exe
PID 3684 wrote to memory of 3376 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 3684 wrote to memory of 3376 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 3684 wrote to memory of 3376 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 3684 wrote to memory of 3376 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 3684 wrote to memory of 3376 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe

Processes

C:\Users\Admin\AppData\Local\Temp\eda9de6005d8b240fcd625ca6e2c2ec385343f2fb88c9d7233892e8302488a9f.exe

"C:\Users\Admin\AppData\Local\Temp\eda9de6005d8b240fcd625ca6e2c2ec385343f2fb88c9d7233892e8302488a9f.exe"

C:\Users\Admin\AppData\Local\Temp\u2k8.0.exe

"C:\Users\Admin\AppData\Local\Temp\u2k8.0.exe"

C:\Users\Admin\AppData\Local\Temp\u2k8.2\run.exe

"C:\Users\Admin\AppData\Local\Temp\u2k8.2\run.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3320 -ip 3320

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3320 -s 1508

C:\Windows\SysWOW64\cmd.exe

C:\Windows\SysWOW64\cmd.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 8 -ip 8

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 8 -s 2460

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
US 8.8.8.8:53 228.128.172.185.in-addr.arpa udp
US 8.8.8.8:53 203.128.172.185.in-addr.arpa udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa 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

Files

memory/3320-2-0x0000000004870000-0x00000000048DD000-memory.dmp

memory/3320-1-0x0000000002ED0000-0x0000000002FD0000-memory.dmp

memory/3320-3-0x0000000000400000-0x0000000002B15000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\u2k8.0.exe

MD5 edb1582f432aa2989cb72b89d999bed7
SHA1 ddcf17c954e7dab5059be86202b9c856f55ace48
SHA256 1c03534e55f231c41f78ad9a110bc391e2c915daa57f3a6cc115819feaa33047
SHA512 13a76b437d2ad5107be3abc5ada669d3c12af24624cef94add531dfb511141622560901c0fe06d47486c52744aeef9d2be297f87d69a7a4330b3882b1ab3fed0

C:\Users\Admin\AppData\Local\Temp\u2k8.1.zip

MD5 78d3ca6355c93c72b494bb6a498bf639
SHA1 2fa4e5df74bfe75c207c881a1b0d3bc1c62c8b0e
SHA256 a1dd547a63b256aa6a16871ed03f8b025226f7617e67b8817a08444df077b001
SHA512 1b2df7bee2514aee7efd3579f5dd33c76b40606d07dba69a34c45747662fad61174db4931bca02b058830107959205e889fee74f8ccc9f6e03f9fd111761f4ea

C:\Users\Admin\AppData\Local\Temp\u2k8.2\run.exe

MD5 9fb4770ced09aae3b437c1c6eb6d7334
SHA1 fe54b31b0db8665aa5b22bed147e8295afc88a03
SHA256 a05b592a971fe5011554013bcfe9a4aaf9cfc633bdd1fe3a8197f213d557b8d3
SHA512 140fee6daf23fe8b7e441b3b4de83554af804f00ecedc421907a385ac79a63164bd9f28b4be061c2ea2262755d85e14d3a8e7dc910547837b664d78d93667256

C:\Users\Admin\AppData\Local\Temp\u2k8.2\relay.dll

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

C:\Users\Admin\AppData\Local\Temp\u2k8.2\whale.dbf

MD5 a723bf46048e0bfb15b8d77d7a648c3e
SHA1 8952d3c34e9341e4425571e10f22b782695bb915
SHA256 b440170853bdb43b66497f701aee2901080326975140b095a1669cb9dee13422
SHA512 ca8ea2f7f3c7af21b5673a0a3f2611b6580a7ed02efa2cfd8b343eb644ff09682bde43b25ef7aab68530d5ce31dcbd252c382dd336ecb610d4c4ebde78347273

C:\Users\Admin\AppData\Local\Temp\u2k8.2\bunch.dat

MD5 1e8237d3028ab52821d69099e0954f97
SHA1 30a6ae353adda0c471c6ed5b7a2458b07185abf2
SHA256 9387488f9d338e211be2cb45109bf590a5070180bc0d4a703f70d3cb3c4e1742
SHA512 a6406d7c18694ee014d59df581f1f76e980b68e3361ae680dc979606a423eba48d35e37f143154dd97fe5f066baf0ea51a2e9f8bc822d593e1cba70ead6559f3

memory/1860-98-0x00000000724D0000-0x000000007264D000-memory.dmp

memory/1860-99-0x00007FF9C6C80000-0x00007FF9C6E89000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\u2k8.2\UIxMarketPlugin.dll

MD5 d1ba9412e78bfc98074c5d724a1a87d6
SHA1 0572f98d78fb0b366b5a086c2a74cc68b771d368
SHA256 cbcea8f28d8916219d1e8b0a8ca2db17e338eb812431bc4ad0cb36c06fd67f15
SHA512 8765de36d3824b12c0a4478c31b985878d4811bd0e5b6fba4ea07f8c76340bd66a2da3490d4871b95d9a12f96efc25507dfd87f431de211664dbe9a9c914af6f

memory/3320-106-0x0000000004870000-0x00000000048DD000-memory.dmp

memory/3320-105-0x0000000000400000-0x0000000002B15000-memory.dmp

memory/8-107-0x0000000002C90000-0x0000000002D90000-memory.dmp

memory/1860-108-0x00000000724D0000-0x000000007264D000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\c5fc1477

MD5 eddce0519fdcd41a21ccc05619c88660
SHA1 f84e58d32c569e9548d6a495f37f1dda2f6d0590
SHA256 a05ff4f8eeba30ce91364d0bf1ec1586b373ed0b6c167ef93ebf53a58e40f3a6
SHA512 b881b2831300154295d3e622c021aea15cb196d5a9a0a731ed7119cfe47d0897de2a79945be8da8d9403881e883e3afe3e8ea21ea80c2efc48e6cb95f11e509a

memory/8-112-0x0000000061E00000-0x0000000061EF3000-memory.dmp

memory/8-153-0x0000000000400000-0x0000000002AF0000-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

C:\ProgramData\Are.docx

MD5 a33e5b189842c5867f46566bdbf7a095
SHA1 e1c06359f6a76da90d19e8fd95e79c832edb3196
SHA256 5abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454
SHA512 f2ad3812ec9b915e9618539b0f103f2e9acaad25fbbacd84941c954ce070af231324e83a4621e951c1dbae8d40d50410954e40dd52bbd46e34c54b0d1957407b

memory/3684-185-0x00007FF9C6C80000-0x00007FF9C6E89000-memory.dmp

memory/8-188-0x0000000000400000-0x0000000002AF0000-memory.dmp

memory/3684-189-0x00000000724D0000-0x000000007264D000-memory.dmp

memory/3376-191-0x0000000070E30000-0x0000000072147000-memory.dmp

memory/3376-194-0x0000000000540000-0x0000000000606000-memory.dmp

memory/3376-195-0x0000000004D20000-0x0000000004DB2000-memory.dmp

memory/3376-196-0x0000000005370000-0x0000000005916000-memory.dmp

memory/3376-197-0x0000000005070000-0x0000000005232000-memory.dmp

memory/3376-198-0x0000000004DC0000-0x0000000004E36000-memory.dmp

memory/3376-199-0x0000000004EA0000-0x0000000004EF0000-memory.dmp

memory/3376-200-0x0000000004CD0000-0x0000000004CDA000-memory.dmp

memory/3376-201-0x0000000005F50000-0x000000000647C000-memory.dmp

memory/3376-202-0x0000000005A70000-0x0000000005A8E000-memory.dmp

memory/3376-203-0x0000000005B40000-0x0000000005BA6000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp1E71.tmp

MD5 42c395b8db48b6ce3d34c301d1eba9d5
SHA1 b7cfa3de344814bec105391663c0df4a74310996
SHA256 5644546ecefc6786c7be5b1a89e935e640963ccd34b130f21baab9370cb9055d
SHA512 7b9214db96e9bec8745b4161a41c4c0520cdda9950f0cd3f12c7744227a25d639d07c0dd68b552cf1e032181c2e4f8297747f27bad6c7447b0f415a86bd82845

C:\Users\Admin\AppData\Local\Temp\tmp1EA3.tmp

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