Malware Analysis Report

2025-01-02 05:56

Sample ID 240426-3gm4yaec78
Target 5c9bc1087288ae32c8273c2eb32b8091e97948e286f92d6395d305b9f99598ef
SHA256 5c9bc1087288ae32c8273c2eb32b8091e97948e286f92d6395d305b9f99598ef
Tags
sectoprat rat 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

5c9bc1087288ae32c8273c2eb32b8091e97948e286f92d6395d305b9f99598ef

Threat Level: Known bad

The file 5c9bc1087288ae32c8273c2eb32b8091e97948e286f92d6395d305b9f99598ef was found to be: Known bad.

Malicious Activity Summary

sectoprat rat trojan

SectopRAT payload

SectopRAT

Downloads MZ/PE file

Checks computer location settings

Executes dropped EXE

Loads dropped DLL

Suspicious use of SetThreadContext

Unsigned PE

Program crash

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious behavior: MapViewOfSection

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-26 23:29

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-26 23:29

Reported

2024-04-26 23:31

Platform

win10v2004-20240226-en

Max time kernel

141s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5c9bc1087288ae32c8273c2eb32b8091e97948e286f92d6395d305b9f99598ef.exe"

Signatures

SectopRAT

trojan rat sectoprat

SectopRAT payload

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

Downloads MZ/PE file

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\5c9bc1087288ae32c8273c2eb32b8091e97948e286f92d6395d305b9f99598ef.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\u20s.0.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\u20s.2\run.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\u20s.2\run.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 5992 set thread context of 4508 N/A C:\Users\Admin\AppData\Local\Temp\u20s.2\run.exe C:\Windows\SysWOW64\cmd.exe
PID 4508 set thread context of 6140 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe

Enumerates physical storage devices

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\u20s.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\u20s.2\run.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\u20s.2\run.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2620 wrote to memory of 2728 N/A C:\Users\Admin\AppData\Local\Temp\5c9bc1087288ae32c8273c2eb32b8091e97948e286f92d6395d305b9f99598ef.exe C:\Users\Admin\AppData\Local\Temp\u20s.0.exe
PID 2620 wrote to memory of 2728 N/A C:\Users\Admin\AppData\Local\Temp\5c9bc1087288ae32c8273c2eb32b8091e97948e286f92d6395d305b9f99598ef.exe C:\Users\Admin\AppData\Local\Temp\u20s.0.exe
PID 2620 wrote to memory of 2728 N/A C:\Users\Admin\AppData\Local\Temp\5c9bc1087288ae32c8273c2eb32b8091e97948e286f92d6395d305b9f99598ef.exe C:\Users\Admin\AppData\Local\Temp\u20s.0.exe
PID 2620 wrote to memory of 5992 N/A C:\Users\Admin\AppData\Local\Temp\5c9bc1087288ae32c8273c2eb32b8091e97948e286f92d6395d305b9f99598ef.exe C:\Users\Admin\AppData\Local\Temp\u20s.2\run.exe
PID 2620 wrote to memory of 5992 N/A C:\Users\Admin\AppData\Local\Temp\5c9bc1087288ae32c8273c2eb32b8091e97948e286f92d6395d305b9f99598ef.exe C:\Users\Admin\AppData\Local\Temp\u20s.2\run.exe
PID 2620 wrote to memory of 5992 N/A C:\Users\Admin\AppData\Local\Temp\5c9bc1087288ae32c8273c2eb32b8091e97948e286f92d6395d305b9f99598ef.exe C:\Users\Admin\AppData\Local\Temp\u20s.2\run.exe
PID 5992 wrote to memory of 4508 N/A C:\Users\Admin\AppData\Local\Temp\u20s.2\run.exe C:\Windows\SysWOW64\cmd.exe
PID 5992 wrote to memory of 4508 N/A C:\Users\Admin\AppData\Local\Temp\u20s.2\run.exe C:\Windows\SysWOW64\cmd.exe
PID 5992 wrote to memory of 4508 N/A C:\Users\Admin\AppData\Local\Temp\u20s.2\run.exe C:\Windows\SysWOW64\cmd.exe
PID 5992 wrote to memory of 4508 N/A C:\Users\Admin\AppData\Local\Temp\u20s.2\run.exe C:\Windows\SysWOW64\cmd.exe
PID 4508 wrote to memory of 6140 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 4508 wrote to memory of 6140 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 4508 wrote to memory of 6140 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 4508 wrote to memory of 6140 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 4508 wrote to memory of 6140 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe

Processes

C:\Users\Admin\AppData\Local\Temp\5c9bc1087288ae32c8273c2eb32b8091e97948e286f92d6395d305b9f99598ef.exe

"C:\Users\Admin\AppData\Local\Temp\5c9bc1087288ae32c8273c2eb32b8091e97948e286f92d6395d305b9f99598ef.exe"

C:\Users\Admin\AppData\Local\Temp\u20s.0.exe

"C:\Users\Admin\AppData\Local\Temp\u20s.0.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2728 -ip 2728

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2728 -s 1116

C:\Users\Admin\AppData\Local\Temp\u20s.2\run.exe

"C:\Users\Admin\AppData\Local\Temp\u20s.2\run.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2620 -ip 2620

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2620 -s 1456

C:\Windows\SysWOW64\cmd.exe

C:\Windows\SysWOW64\cmd.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 --mojo-platform-channel-handle=3904 --field-trial-handle=2280,i,1836084024518340990,18250262151825427757,262144 --variations-seed-version /prefetch:8

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

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

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

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --no-appcompat-clear --mojo-platform-channel-handle=3044 --field-trial-handle=2280,i,1836084024518340990,18250262151825427757,262144 --variations-seed-version /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 --mojo-platform-channel-handle=5048 --field-trial-handle=2280,i,1836084024518340990,18250262151825427757,262144 --variations-seed-version /prefetch:3

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
US 8.8.8.8:53 203.128.172.185.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 note.padd.cn.com udp
RO 176.97.76.106:80 note.padd.cn.com tcp
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 106.76.97.176.in-addr.arpa udp
DE 185.172.128.111:80 185.172.128.111 tcp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 111.128.172.185.in-addr.arpa udp
GB 142.250.187.202:443 tcp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 151.143.109.104.in-addr.arpa udp
RU 91.215.85.66:15647 tcp
US 8.8.8.8:53 66.85.215.91.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 104.193.132.51.in-addr.arpa udp

Files

memory/2620-1-0x00000000041B0000-0x00000000042B0000-memory.dmp

memory/2620-2-0x0000000004130000-0x000000000419D000-memory.dmp

memory/2620-3-0x0000000000400000-0x000000000405C000-memory.dmp

memory/2620-5-0x0000000000400000-0x000000000405C000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\u20s.0.exe

MD5 2aca40672b2c2e3572c74163400036b5
SHA1 8df75669066e269c877e139a76fb2b73515ef8e1
SHA256 a4d80d247976d2bbab7301228a92a2bb58377cf77612d59ec1a297372e20a669
SHA512 10342acf88d30a743c68732c1cd76927455efa877a11afea03a31cef633c4d51bbfd51b2422f23375f14bd7923a74d593637c3f203bd22f6b96757b7f6df589a

C:\Users\Admin\AppData\Local\Temp\u20s.1.zip

MD5 78d3ca6355c93c72b494bb6a498bf639
SHA1 2fa4e5df74bfe75c207c881a1b0d3bc1c62c8b0e
SHA256 a1dd547a63b256aa6a16871ed03f8b025226f7617e67b8817a08444df077b001
SHA512 1b2df7bee2514aee7efd3579f5dd33c76b40606d07dba69a34c45747662fad61174db4931bca02b058830107959205e889fee74f8ccc9f6e03f9fd111761f4ea

C:\Users\Admin\AppData\Local\Temp\u20s.2\run.exe

MD5 9fb4770ced09aae3b437c1c6eb6d7334
SHA1 fe54b31b0db8665aa5b22bed147e8295afc88a03
SHA256 a05b592a971fe5011554013bcfe9a4aaf9cfc633bdd1fe3a8197f213d557b8d3
SHA512 140fee6daf23fe8b7e441b3b4de83554af804f00ecedc421907a385ac79a63164bd9f28b4be061c2ea2262755d85e14d3a8e7dc910547837b664d78d93667256

C:\Users\Admin\AppData\Local\Temp\u20s.2\relay.dll

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

C:\Users\Admin\AppData\Local\Temp\u20s.2\whale.dbf

MD5 a723bf46048e0bfb15b8d77d7a648c3e
SHA1 8952d3c34e9341e4425571e10f22b782695bb915
SHA256 b440170853bdb43b66497f701aee2901080326975140b095a1669cb9dee13422
SHA512 ca8ea2f7f3c7af21b5673a0a3f2611b6580a7ed02efa2cfd8b343eb644ff09682bde43b25ef7aab68530d5ce31dcbd252c382dd336ecb610d4c4ebde78347273

C:\Users\Admin\AppData\Local\Temp\u20s.2\bunch.dat

MD5 1e8237d3028ab52821d69099e0954f97
SHA1 30a6ae353adda0c471c6ed5b7a2458b07185abf2
SHA256 9387488f9d338e211be2cb45109bf590a5070180bc0d4a703f70d3cb3c4e1742
SHA512 a6406d7c18694ee014d59df581f1f76e980b68e3361ae680dc979606a423eba48d35e37f143154dd97fe5f066baf0ea51a2e9f8bc822d593e1cba70ead6559f3

memory/5992-99-0x0000000072BF0000-0x0000000072D6B000-memory.dmp

memory/5992-100-0x00007FFDA2A10000-0x00007FFDA2C05000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\u20s.2\UIxMarketPlugin.dll

MD5 d1ba9412e78bfc98074c5d724a1a87d6
SHA1 0572f98d78fb0b366b5a086c2a74cc68b771d368
SHA256 cbcea8f28d8916219d1e8b0a8ca2db17e338eb812431bc4ad0cb36c06fd67f15
SHA512 8765de36d3824b12c0a4478c31b985878d4811bd0e5b6fba4ea07f8c76340bd66a2da3490d4871b95d9a12f96efc25507dfd87f431de211664dbe9a9c914af6f

memory/2620-107-0x0000000004130000-0x000000000419D000-memory.dmp

memory/2620-106-0x0000000000400000-0x000000000405C000-memory.dmp

memory/2728-109-0x0000000000400000-0x0000000004038000-memory.dmp

memory/5992-110-0x0000000072BF0000-0x0000000072D6B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\37df2a79

MD5 8aa40745dedc305c494f192576cdb610
SHA1 9f2671687fd0704d6cd3a1e5daf9d3b9f4c6f539
SHA256 2399d69ef3cb311f2b98e98953bf15dec9e07d3deb8978d9ce2a9de02ebc56ec
SHA512 103a09db9943c1be74aef8b82f05f66da0317ac819bec3aee9e0a117a6844ac12760d40953a580e31783be77d49c2cf25d026e3d2b765db94a520ba229cc22be

memory/4508-113-0x00007FFDA2A10000-0x00007FFDA2C05000-memory.dmp

memory/4508-115-0x0000000072BF0000-0x0000000072D6B000-memory.dmp

memory/6140-117-0x0000000073B40000-0x0000000074D94000-memory.dmp

memory/6140-120-0x0000000000D00000-0x0000000000DC6000-memory.dmp

memory/6140-121-0x0000000005370000-0x0000000005402000-memory.dmp

memory/6140-122-0x00000000059C0000-0x0000000005F64000-memory.dmp

memory/6140-123-0x0000000005650000-0x0000000005812000-memory.dmp

memory/6140-124-0x0000000005500000-0x0000000005576000-memory.dmp

memory/6140-125-0x0000000005580000-0x00000000055D0000-memory.dmp

memory/6140-126-0x0000000005360000-0x000000000536A000-memory.dmp

memory/6140-127-0x00000000065A0000-0x0000000006ACC000-memory.dmp

memory/6140-128-0x00000000060F0000-0x000000000610E000-memory.dmp

memory/6140-129-0x00000000061E0000-0x0000000006246000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp16F.tmp

MD5 c9ff7748d8fcef4cf84a5501e996a641
SHA1 02867e5010f62f97ebb0cfb32cb3ede9449fe0c9
SHA256 4d3f3194cb1133437aa69bb880c8cbb55ddf06ff61a88ca6c3f1bbfbfd35d988
SHA512 d36054499869a8f56ac8547ccd5455f1252c24e17d2b185955390b32da7e2a732ace4e0f30f9493fcc61425a2e31ed623465f998f41af69423ee0e3ed1483a73

C:\Users\Admin\AppData\Local\Temp\tmp1421.tmp

MD5 91dbaf73c1a8c55254d90272f998e412
SHA1 2b86b31c8c00c937291e5ac3b1d134a5df959acf
SHA256 0628922305d2478ba75a48efadf932d439616eaf1ff908be334793f7bde28107
SHA512 109f4f59616cc1d1682b4d9468804f7668c77ce1878afec06a57037193f31a9c1c39f5d269277462936373b129d26488cddcc34d455c27185534e7754baaa988

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-26 23:29

Reported

2024-04-26 23:31

Platform

win11-20240419-en

Max time kernel

55s

Max time network

65s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5c9bc1087288ae32c8273c2eb32b8091e97948e286f92d6395d305b9f99598ef.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\5c9bc1087288ae32c8273c2eb32b8091e97948e286f92d6395d305b9f99598ef.exe

"C:\Users\Admin\AppData\Local\Temp\5c9bc1087288ae32c8273c2eb32b8091e97948e286f92d6395d305b9f99598ef.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3476 -ip 3476

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3476 -s 484

Network

Country Destination Domain Proto
DE 185.172.128.228:80 tcp
DE 185.172.128.203:80 tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp

Files

memory/3476-1-0x00000000041E0000-0x00000000042E0000-memory.dmp

memory/3476-2-0x0000000005C50000-0x0000000005CBD000-memory.dmp

memory/3476-3-0x0000000000400000-0x000000000405C000-memory.dmp

memory/3476-5-0x00000000041E0000-0x00000000042E0000-memory.dmp

memory/3476-6-0x0000000000400000-0x000000000405C000-memory.dmp

memory/3476-9-0x0000000000400000-0x000000000405C000-memory.dmp