sectoprat | 3d4375cde08e03e77fe51fbca04d0cc4ce29fd7d0a71174473fb2225ba204d43

Analysis

max time kernel
290s
max time network
294s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25/04/2024, 22:21

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General

Target

3d4375cde08e03e77fe51fbca04d0cc4ce29fd7d0a71174473fb2225ba204d43.exe
Size

396KB
MD5

bf4f63cbcc06bf2ae575ea3778e023c1
SHA1

ba9a6a28bfa25886b389afb4dc0e57a1d48eeeb8
SHA256

3d4375cde08e03e77fe51fbca04d0cc4ce29fd7d0a71174473fb2225ba204d43
SHA512

992e3a0680da57fb60060628d56ca974a552a6e266864fad690108c38bbcdf94a6611b008fa2f0568cc0aa7f7a780ab57fb47288209206ecd8ac3158dca2f3b7
SSDEEP

6144:4bUya3+rSZfUNPi77LXMIoTKsmQ3ol2nb14ov0d:sUyaySdnLXvoTmWol4b1j4

Score

10^/10

sectoprat stealc rat stealer trojan

Malware Config

Extracted

Family

stealc

http://185.172.128.111

Attributes

url_path
/f993692117a3fda2.php

Signatures

Detects Arechclient2 RAT 1 IoCs

Arechclient2.

resource	yara_rule
behavioral1/memory/1936-180-0x0000000000400000-0x00000000004C6000-memory.dmp	MALWARE_Win_Arechclient

SectopRAT
SectopRAT is a remote access trojan first seen in November 2019.
trojan rat sectoprat

SectopRAT payload 1 IoCs

resource	yara_rule
behavioral1/memory/1936-180-0x0000000000400000-0x00000000004C6000-memory.dmp	family_sectoprat

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Downloads MZ/PE file

Executes dropped EXE 2 IoCs

pid	Process
2744	u1os.0.exe
2952	run.exe

Loads dropped DLL 10 IoCs

pid	Process
2188	3d4375cde08e03e77fe51fbca04d0cc4ce29fd7d0a71174473fb2225ba204d43.exe
2188	3d4375cde08e03e77fe51fbca04d0cc4ce29fd7d0a71174473fb2225ba204d43.exe
2188	3d4375cde08e03e77fe51fbca04d0cc4ce29fd7d0a71174473fb2225ba204d43.exe
2188	3d4375cde08e03e77fe51fbca04d0cc4ce29fd7d0a71174473fb2225ba204d43.exe
2188	3d4375cde08e03e77fe51fbca04d0cc4ce29fd7d0a71174473fb2225ba204d43.exe
2188	3d4375cde08e03e77fe51fbca04d0cc4ce29fd7d0a71174473fb2225ba204d43.exe
2188	3d4375cde08e03e77fe51fbca04d0cc4ce29fd7d0a71174473fb2225ba204d43.exe
2188	3d4375cde08e03e77fe51fbca04d0cc4ce29fd7d0a71174473fb2225ba204d43.exe
2952	run.exe
284	cmd.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2952 set thread context of 284	2952	run.exe	30
PID 284 set thread context of 1936	284	cmd.exe	32

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2952	run.exe
2952	run.exe
284	cmd.exe
284	cmd.exe
1936	MSBuild.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
2952	run.exe
284	cmd.exe
284	cmd.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1936	MSBuild.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2952	run.exe
2952	run.exe
1936	MSBuild.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 2188 wrote to memory of 2744	2188	3d4375cde08e03e77fe51fbca04d0cc4ce29fd7d0a71174473fb2225ba204d43.exe	28
PID 2188 wrote to memory of 2744	2188	3d4375cde08e03e77fe51fbca04d0cc4ce29fd7d0a71174473fb2225ba204d43.exe	28
PID 2188 wrote to memory of 2744	2188	3d4375cde08e03e77fe51fbca04d0cc4ce29fd7d0a71174473fb2225ba204d43.exe	28
PID 2188 wrote to memory of 2744	2188	3d4375cde08e03e77fe51fbca04d0cc4ce29fd7d0a71174473fb2225ba204d43.exe	28
PID 2188 wrote to memory of 2952	2188	3d4375cde08e03e77fe51fbca04d0cc4ce29fd7d0a71174473fb2225ba204d43.exe	29
PID 2188 wrote to memory of 2952	2188	3d4375cde08e03e77fe51fbca04d0cc4ce29fd7d0a71174473fb2225ba204d43.exe	29
PID 2188 wrote to memory of 2952	2188	3d4375cde08e03e77fe51fbca04d0cc4ce29fd7d0a71174473fb2225ba204d43.exe	29
PID 2188 wrote to memory of 2952	2188	3d4375cde08e03e77fe51fbca04d0cc4ce29fd7d0a71174473fb2225ba204d43.exe	29
PID 2188 wrote to memory of 2952	2188	3d4375cde08e03e77fe51fbca04d0cc4ce29fd7d0a71174473fb2225ba204d43.exe	29
PID 2188 wrote to memory of 2952	2188	3d4375cde08e03e77fe51fbca04d0cc4ce29fd7d0a71174473fb2225ba204d43.exe	29
PID 2188 wrote to memory of 2952	2188	3d4375cde08e03e77fe51fbca04d0cc4ce29fd7d0a71174473fb2225ba204d43.exe	29
PID 2952 wrote to memory of 284	2952	run.exe	30
PID 2952 wrote to memory of 284	2952	run.exe	30
PID 2952 wrote to memory of 284	2952	run.exe	30
PID 2952 wrote to memory of 284	2952	run.exe	30
PID 2952 wrote to memory of 284	2952	run.exe	30
PID 284 wrote to memory of 1936	284	cmd.exe	32
PID 284 wrote to memory of 1936	284	cmd.exe	32
PID 284 wrote to memory of 1936	284	cmd.exe	32
PID 284 wrote to memory of 1936	284	cmd.exe	32
PID 284 wrote to memory of 1936	284	cmd.exe	32
PID 284 wrote to memory of 1936	284	cmd.exe	32

C:\Users\Admin\AppData\Local\Temp\3d4375cde08e03e77fe51fbca04d0cc4ce29fd7d0a71174473fb2225ba204d43.exe
"C:\Users\Admin\AppData\Local\Temp\3d4375cde08e03e77fe51fbca04d0cc4ce29fd7d0a71174473fb2225ba204d43.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2188
- C:\Users\Admin\AppData\Local\Temp\u1os.0.exe
  "C:\Users\Admin\AppData\Local\Temp\u1os.0.exe"
  2⤵
  - Executes dropped EXE
  PID:2744
- C:\Users\Admin\AppData\Local\Temp\u1os.2\run.exe
  "C:\Users\Admin\AppData\Local\Temp\u1os.2\run.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2952
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\SysWOW64\cmd.exe
    3⤵
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:284
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:1936

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\U1OS1~1.ZIP

Filesize
3.7MB

MD5
78d3ca6355c93c72b494bb6a498bf639

SHA1
2fa4e5df74bfe75c207c881a1b0d3bc1c62c8b0e

SHA256
a1dd547a63b256aa6a16871ed03f8b025226f7617e67b8817a08444df077b001

SHA512
1b2df7bee2514aee7efd3579f5dd33c76b40606d07dba69a34c45747662fad61174db4931bca02b058830107959205e889fee74f8ccc9f6e03f9fd111761f4ea

Download Submit
C:\Users\Admin\AppData\Local\Temp\e91f36a0

Filesize
1.4MB

MD5
6cf7e405a7db6895fc89701e7739e8ea

SHA1
531a17ae2c32176590263077ca881efdc2000954

SHA256
7958bfe16e09cb782bb76ec78d32cfa26a23e689d7c6a7a15213ca901c449556

SHA512
76806c5593c82286d5474c1f39a3d032cb80a6828c710295db17688ab4f3ca7de9692c90515671fde46b755f2fa98e2bd29c374ac1138e0122049ce7efa4f680

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpC0C2.tmp

Filesize
20KB

MD5
c9ff7748d8fcef4cf84a5501e996a641

SHA1
02867e5010f62f97ebb0cfb32cb3ede9449fe0c9

SHA256
4d3f3194cb1133437aa69bb880c8cbb55ddf06ff61a88ca6c3f1bbfbfd35d988

SHA512
d36054499869a8f56ac8547ccd5455f1252c24e17d2b185955390b32da7e2a732ace4e0f30f9493fcc61425a2e31ed623465f998f41af69423ee0e3ed1483a73

Download Submit
C:\Users\Admin\AppData\Local\Temp\u1os.2\UIxMarketPlugin.dll

Filesize
1.6MB

MD5
d1ba9412e78bfc98074c5d724a1a87d6

SHA1
0572f98d78fb0b366b5a086c2a74cc68b771d368

SHA256
cbcea8f28d8916219d1e8b0a8ca2db17e338eb812431bc4ad0cb36c06fd67f15

SHA512
8765de36d3824b12c0a4478c31b985878d4811bd0e5b6fba4ea07f8c76340bd66a2da3490d4871b95d9a12f96efc25507dfd87f431de211664dbe9a9c914af6f

Download Submit
C:\Users\Admin\AppData\Local\Temp\u1os.2\bunch.dat

Filesize
1.3MB

MD5
1e8237d3028ab52821d69099e0954f97

SHA1
30a6ae353adda0c471c6ed5b7a2458b07185abf2

SHA256
9387488f9d338e211be2cb45109bf590a5070180bc0d4a703f70d3cb3c4e1742

SHA512
a6406d7c18694ee014d59df581f1f76e980b68e3361ae680dc979606a423eba48d35e37f143154dd97fe5f066baf0ea51a2e9f8bc822d593e1cba70ead6559f3

Download Submit
C:\Users\Admin\AppData\Local\Temp\u1os.2\relay.dll

Filesize
1.5MB

MD5
10d51becd0bbce0fab147ff9658c565e

SHA1
4689a18112ff876d3c066bc8c14a08fd6b7b7a4a

SHA256
7b2db9c88f60ed6dd24b1dec321a304564780fdb191a96ec35c051856128f1ed

SHA512
29faf493bb28f7842c905adc5312f31741effb09f841059b53d73b22aea2c4d41d73db10bbf37703d6aeb936ffacbc756a3cc85ba3c0b6a6863ef4d27fefcd29

Download Submit
C:\Users\Admin\AppData\Local\Temp\u1os.2\whale.dbf

Filesize
85KB

MD5
a723bf46048e0bfb15b8d77d7a648c3e

SHA1
8952d3c34e9341e4425571e10f22b782695bb915

SHA256
b440170853bdb43b66497f701aee2901080326975140b095a1669cb9dee13422

SHA512
ca8ea2f7f3c7af21b5673a0a3f2611b6580a7ed02efa2cfd8b343eb644ff09682bde43b25ef7aab68530d5ce31dcbd252c382dd336ecb610d4c4ebde78347273

Download Submit
\Users\Admin\AppData\Local\Temp\u1os.0.exe

Filesize
275KB

MD5
500ff9106af81f784b40acb38342f01e

SHA1
fa28d68a241db1ff4a40c5659b65d6cb1b4ae9bc

SHA256
55f2a97acc89f9991574ab48d97722932ed4006c589c9128475562cd6c5c2b8d

SHA512
a0e1a7d91522fe1c219f4f62568dc5b517b8a36a30c2a8ba19e4deec1ba7602186aeb31b19c00202ea777704c1366e435c131e901bb02e34a0e22ed9979ee6f3

Download Submit
\Users\Admin\AppData\Local\Temp\u1os.2\run.exe

Filesize
2.4MB

MD5
9fb4770ced09aae3b437c1c6eb6d7334

SHA1
fe54b31b0db8665aa5b22bed147e8295afc88a03

SHA256
a05b592a971fe5011554013bcfe9a4aaf9cfc633bdd1fe3a8197f213d557b8d3

SHA512
140fee6daf23fe8b7e441b3b4de83554af804f00ecedc421907a385ac79a63164bd9f28b4be061c2ea2262755d85e14d3a8e7dc910547837b664d78d93667256

Download Submit
memory/284-174-0x0000000074910000-0x0000000074A84000-memory.dmp

Filesize
1.5MB

Download
memory/284-125-0x0000000074910000-0x0000000074A84000-memory.dmp

Filesize
1.5MB

Download
memory/284-177-0x0000000074910000-0x0000000074A84000-memory.dmp

Filesize
1.5MB

Download
memory/284-173-0x0000000074910000-0x0000000074A84000-memory.dmp

Filesize
1.5MB

Download
memory/284-127-0x0000000077B00000-0x0000000077CA9000-memory.dmp

Filesize
1.7MB

Download
memory/1936-179-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/1936-178-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/1936-193-0x0000000004FE0000-0x0000000005020000-memory.dmp

Filesize
256KB

Download
memory/1936-192-0x0000000072990000-0x000000007307E000-memory.dmp

Filesize
6.9MB

Download
memory/1936-182-0x0000000004FE0000-0x0000000005020000-memory.dmp

Filesize
256KB

Download
memory/1936-181-0x0000000072990000-0x000000007307E000-memory.dmp

Filesize
6.9MB

Download
memory/1936-180-0x0000000000400000-0x00000000004C6000-memory.dmp

Filesize
792KB

Download
memory/1936-176-0x0000000073080000-0x00000000740E2000-memory.dmp

Filesize
16.4MB

Download
memory/2188-3-0x0000000000400000-0x0000000002C46000-memory.dmp

Filesize
40.3MB

Download
memory/2188-1-0x0000000002D20000-0x0000000002E20000-memory.dmp

Filesize
1024KB

Download
memory/2188-107-0x0000000000400000-0x0000000002C46000-memory.dmp

Filesize
40.3MB

Download
memory/2188-109-0x0000000002D20000-0x0000000002E20000-memory.dmp

Filesize
1024KB

Download
memory/2188-2-0x0000000000310000-0x000000000037D000-memory.dmp

Filesize
436KB

Download
memory/2744-23-0x0000000000400000-0x0000000000846000-memory.dmp

Filesize
4.3MB

Download
memory/2744-22-0x0000000000400000-0x0000000000846000-memory.dmp

Filesize
4.3MB

Download
memory/2744-21-0x0000000000220000-0x0000000000247000-memory.dmp

Filesize
156KB

Download
memory/2744-20-0x00000000009E0000-0x0000000000AE0000-memory.dmp

Filesize
1024KB

Download
memory/2952-115-0x0000000074910000-0x0000000074A84000-memory.dmp

Filesize
1.5MB

Download
memory/2952-123-0x0000000074910000-0x0000000074A84000-memory.dmp

Filesize
1.5MB

Download
memory/2952-122-0x0000000074910000-0x0000000074A84000-memory.dmp

Filesize
1.5MB

Download
memory/2952-116-0x0000000077B00000-0x0000000077CA9000-memory.dmp

Filesize
1.7MB

Download