sectoprat | 95355a55723c0866afed1253a8f0a17c8b6554d6452d4dfa80f4c9b382fd3596

Analysis

max time kernel
121s
max time network
142s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
29-04-2024 01:30

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General

Target

95355a55723c0866afed1253a8f0a17c8b6554d6452d4dfa80f4c9b382fd3596.exe
Size

451KB
MD5

05bbba512adcaff8770b3b56762ef136
SHA1

bc608e868981f5aa3f5da959bf8c0786e72ca36c
SHA256

95355a55723c0866afed1253a8f0a17c8b6554d6452d4dfa80f4c9b382fd3596
SHA512

d522a6fa30adacb07fa67441a55a4e6d55ea895ac48d53ac5909c846ab44acae9e25369c8c3ca093b6e1ee92ac1e5901aca46af928c74e68ede0def16cc23d2c
SSDEEP

6144:+0HYlMeYOX8mE94DowCxV0jZVqmnvi1UVX1Zbt2S0gjaU:+04lMXmQ4LCxWjZji1U/rhaU

Score

10^/10

sectoprat stealc discovery rat spyware stealer trojan

Malware Config

Extracted

Family

stealc

http://185.172.128.151

Attributes

url_path
/7043a0c6a68d9c65.php

Signatures

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

SectopRAT payload 1 IoCs

resource	yara_rule
behavioral1/memory/1636-239-0x0000000000400000-0x00000000004C6000-memory.dmp	family_sectoprat

Stealc
Stealc is an infostealer written in C++.
stealer stealc

Detect binaries embedding considerable number of MFA browser extension IDs. 2 IoCs

resource	yara_rule
behavioral1/memory/1356-176-0x0000000000400000-0x0000000001A17000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs
behavioral1/memory/1356-232-0x0000000000400000-0x0000000001A17000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs

Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs. 2 IoCs

resource	yara_rule
behavioral1/memory/1356-176-0x0000000000400000-0x0000000001A17000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs
behavioral1/memory/1356-232-0x0000000000400000-0x0000000001A17000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 2 IoCs

resource	yara_rule
behavioral1/memory/1356-176-0x0000000000400000-0x0000000001A17000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/1356-232-0x0000000000400000-0x0000000001A17000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Downloads MZ/PE file

Executes dropped EXE 2 IoCs

pid	Process
1356	u27k.0.exe
1948	run.exe

Loads dropped DLL 13 IoCs

pid	Process
2864	95355a55723c0866afed1253a8f0a17c8b6554d6452d4dfa80f4c9b382fd3596.exe
2864	95355a55723c0866afed1253a8f0a17c8b6554d6452d4dfa80f4c9b382fd3596.exe
2864	95355a55723c0866afed1253a8f0a17c8b6554d6452d4dfa80f4c9b382fd3596.exe
2864	95355a55723c0866afed1253a8f0a17c8b6554d6452d4dfa80f4c9b382fd3596.exe
2864	95355a55723c0866afed1253a8f0a17c8b6554d6452d4dfa80f4c9b382fd3596.exe
2864	95355a55723c0866afed1253a8f0a17c8b6554d6452d4dfa80f4c9b382fd3596.exe
2864	95355a55723c0866afed1253a8f0a17c8b6554d6452d4dfa80f4c9b382fd3596.exe
2864	95355a55723c0866afed1253a8f0a17c8b6554d6452d4dfa80f4c9b382fd3596.exe
2864	95355a55723c0866afed1253a8f0a17c8b6554d6452d4dfa80f4c9b382fd3596.exe
1948	run.exe
1356	u27k.0.exe
1356	u27k.0.exe
2300	cmd.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1948 set thread context of 2300	1948	run.exe	31
PID 2300 set thread context of 1636	2300	cmd.exe	36

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	u27k.0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	u27k.0.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1316	timeout.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1356	u27k.0.exe
1948	run.exe
1948	run.exe
2300	cmd.exe
2300	cmd.exe
1636	MSBuild.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
1948	run.exe
2300	cmd.exe
2300	cmd.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1636	MSBuild.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1948	run.exe
1948	run.exe
1636	MSBuild.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2864 wrote to memory of 1356	2864	95355a55723c0866afed1253a8f0a17c8b6554d6452d4dfa80f4c9b382fd3596.exe	28
PID 2864 wrote to memory of 1356	2864	95355a55723c0866afed1253a8f0a17c8b6554d6452d4dfa80f4c9b382fd3596.exe	28
PID 2864 wrote to memory of 1356	2864	95355a55723c0866afed1253a8f0a17c8b6554d6452d4dfa80f4c9b382fd3596.exe	28
PID 2864 wrote to memory of 1356	2864	95355a55723c0866afed1253a8f0a17c8b6554d6452d4dfa80f4c9b382fd3596.exe	28
PID 2864 wrote to memory of 1948	2864	95355a55723c0866afed1253a8f0a17c8b6554d6452d4dfa80f4c9b382fd3596.exe	30
PID 2864 wrote to memory of 1948	2864	95355a55723c0866afed1253a8f0a17c8b6554d6452d4dfa80f4c9b382fd3596.exe	30
PID 2864 wrote to memory of 1948	2864	95355a55723c0866afed1253a8f0a17c8b6554d6452d4dfa80f4c9b382fd3596.exe	30
PID 2864 wrote to memory of 1948	2864	95355a55723c0866afed1253a8f0a17c8b6554d6452d4dfa80f4c9b382fd3596.exe	30
PID 2864 wrote to memory of 1948	2864	95355a55723c0866afed1253a8f0a17c8b6554d6452d4dfa80f4c9b382fd3596.exe	30
PID 2864 wrote to memory of 1948	2864	95355a55723c0866afed1253a8f0a17c8b6554d6452d4dfa80f4c9b382fd3596.exe	30
PID 2864 wrote to memory of 1948	2864	95355a55723c0866afed1253a8f0a17c8b6554d6452d4dfa80f4c9b382fd3596.exe	30
PID 1948 wrote to memory of 2300	1948	run.exe	31
PID 1948 wrote to memory of 2300	1948	run.exe	31
PID 1948 wrote to memory of 2300	1948	run.exe	31
PID 1948 wrote to memory of 2300	1948	run.exe	31
PID 1948 wrote to memory of 2300	1948	run.exe	31
PID 1356 wrote to memory of 2036	1356	u27k.0.exe	33
PID 1356 wrote to memory of 2036	1356	u27k.0.exe	33
PID 1356 wrote to memory of 2036	1356	u27k.0.exe	33
PID 1356 wrote to memory of 2036	1356	u27k.0.exe	33
PID 2036 wrote to memory of 1316	2036	cmd.exe	35
PID 2036 wrote to memory of 1316	2036	cmd.exe	35
PID 2036 wrote to memory of 1316	2036	cmd.exe	35
PID 2036 wrote to memory of 1316	2036	cmd.exe	35
PID 2300 wrote to memory of 1636	2300	cmd.exe	36
PID 2300 wrote to memory of 1636	2300	cmd.exe	36
PID 2300 wrote to memory of 1636	2300	cmd.exe	36
PID 2300 wrote to memory of 1636	2300	cmd.exe	36
PID 2300 wrote to memory of 1636	2300	cmd.exe	36
PID 2300 wrote to memory of 1636	2300	cmd.exe	36

C:\Users\Admin\AppData\Local\Temp\95355a55723c0866afed1253a8f0a17c8b6554d6452d4dfa80f4c9b382fd3596.exe
"C:\Users\Admin\AppData\Local\Temp\95355a55723c0866afed1253a8f0a17c8b6554d6452d4dfa80f4c9b382fd3596.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2864
- C:\Users\Admin\AppData\Local\Temp\u27k.0.exe
  "C:\Users\Admin\AppData\Local\Temp\u27k.0.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1356
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\u27k.0.exe" & del "C:\ProgramData\*.dll"" & exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2036
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 5
      4⤵
      Delays execution with timeout.exe
      PID:1316
- C:\Users\Admin\AppData\Local\Temp\u27k.2\run.exe
  "C:\Users\Admin\AppData\Local\Temp\u27k.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:1948
- - 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:2300
  - - 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:1636

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\U27K1~1.ZIP

Filesize
3.7MB

MD5
78d3ca6355c93c72b494bb6a498bf639

SHA1
2fa4e5df74bfe75c207c881a1b0d3bc1c62c8b0e

SHA256
a1dd547a63b256aa6a16871ed03f8b025226f7617e67b8817a08444df077b001

SHA512
1b2df7bee2514aee7efd3579f5dd33c76b40606d07dba69a34c45747662fad61174db4931bca02b058830107959205e889fee74f8ccc9f6e03f9fd111761f4ea

Download Submit
C:\Users\Admin\AppData\Local\Temp\bc8c1e2a

Filesize
1.4MB

MD5
9fbf669304899e04ba4081614fdb8124

SHA1
ab03be710e84af2beda2488c983df897a60fd4ad

SHA256
146052ae16fa9fa1329ef9275d7e9cb1e98deac7f119a24fec01debd7e6a8bfb

SHA512
e72821fb5c5e561ee6f978964020f8944049f753e8b8d86e9ce4894dcb4eda8dd489227eac88beab6ba445d36e85b3bc768b29115896576c29d16d30dc6637af

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpACC4.tmp

Filesize
20KB

MD5
c9ff7748d8fcef4cf84a5501e996a641

SHA1
02867e5010f62f97ebb0cfb32cb3ede9449fe0c9

SHA256
4d3f3194cb1133437aa69bb880c8cbb55ddf06ff61a88ca6c3f1bbfbfd35d988

SHA512
d36054499869a8f56ac8547ccd5455f1252c24e17d2b185955390b32da7e2a732ace4e0f30f9493fcc61425a2e31ed623465f998f41af69423ee0e3ed1483a73

Download Submit
C:\Users\Admin\AppData\Local\Temp\u27k.2\UIxMarketPlugin.dll

Filesize
1.6MB

MD5
d1ba9412e78bfc98074c5d724a1a87d6

SHA1
0572f98d78fb0b366b5a086c2a74cc68b771d368

SHA256
cbcea8f28d8916219d1e8b0a8ca2db17e338eb812431bc4ad0cb36c06fd67f15

SHA512
8765de36d3824b12c0a4478c31b985878d4811bd0e5b6fba4ea07f8c76340bd66a2da3490d4871b95d9a12f96efc25507dfd87f431de211664dbe9a9c914af6f

Download Submit
C:\Users\Admin\AppData\Local\Temp\u27k.2\bunch.dat

Filesize
1.3MB

MD5
1e8237d3028ab52821d69099e0954f97

SHA1
30a6ae353adda0c471c6ed5b7a2458b07185abf2

SHA256
9387488f9d338e211be2cb45109bf590a5070180bc0d4a703f70d3cb3c4e1742

SHA512
a6406d7c18694ee014d59df581f1f76e980b68e3361ae680dc979606a423eba48d35e37f143154dd97fe5f066baf0ea51a2e9f8bc822d593e1cba70ead6559f3

Download Submit
C:\Users\Admin\AppData\Local\Temp\u27k.2\relay.dll

Filesize
1.5MB

MD5
10d51becd0bbce0fab147ff9658c565e

SHA1
4689a18112ff876d3c066bc8c14a08fd6b7b7a4a

SHA256
7b2db9c88f60ed6dd24b1dec321a304564780fdb191a96ec35c051856128f1ed

SHA512
29faf493bb28f7842c905adc5312f31741effb09f841059b53d73b22aea2c4d41d73db10bbf37703d6aeb936ffacbc756a3cc85ba3c0b6a6863ef4d27fefcd29

Download Submit
C:\Users\Admin\AppData\Local\Temp\u27k.2\run.exe

Filesize
2.4MB

MD5
9fb4770ced09aae3b437c1c6eb6d7334

SHA1
fe54b31b0db8665aa5b22bed147e8295afc88a03

SHA256
a05b592a971fe5011554013bcfe9a4aaf9cfc633bdd1fe3a8197f213d557b8d3

SHA512
140fee6daf23fe8b7e441b3b4de83554af804f00ecedc421907a385ac79a63164bd9f28b4be061c2ea2262755d85e14d3a8e7dc910547837b664d78d93667256

Download Submit
C:\Users\Admin\AppData\Local\Temp\u27k.2\whale.dbf

Filesize
85KB

MD5
a723bf46048e0bfb15b8d77d7a648c3e

SHA1
8952d3c34e9341e4425571e10f22b782695bb915

SHA256
b440170853bdb43b66497f701aee2901080326975140b095a1669cb9dee13422

SHA512
ca8ea2f7f3c7af21b5673a0a3f2611b6580a7ed02efa2cfd8b343eb644ff09682bde43b25ef7aab68530d5ce31dcbd252c382dd336ecb610d4c4ebde78347273

Download Submit
\ProgramData\mozglue.dll

Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
\ProgramData\nss3.dll

Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

Download Submit
\Users\Admin\AppData\Local\Temp\u27k.0.exe

Filesize
303KB

MD5
9331497f89ddeb3c348f89fe71ea98dd

SHA1
61bfa642178f8ea43f101015462b0608c4112780

SHA256
c31a405cf896488cfc1b7451e64c9333439a5578cc2a7d2070db7b0009785c6f

SHA512
330217320bd7e7683cd5d6544b2960b26bea6bde2bd7e2be050382d1f7b8a8ee94630a76d18831c995762e767ec5922643c819540512c4684ec853f4991f6ade

Download Submit
memory/1356-22-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/1356-232-0x0000000000400000-0x0000000001A17000-memory.dmp

Filesize
22.1MB

Download
memory/1356-176-0x0000000000400000-0x0000000001A17000-memory.dmp

Filesize
22.1MB

Download
memory/1636-238-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/1636-236-0x0000000071990000-0x00000000729F2000-memory.dmp

Filesize
16.4MB

Download
memory/1636-237-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/1636-239-0x0000000000400000-0x00000000004C6000-memory.dmp

Filesize
792KB

Download
memory/1948-154-0x00000000741E0000-0x0000000074354000-memory.dmp

Filesize
1.5MB

Download
memory/1948-173-0x00000000741E0000-0x0000000074354000-memory.dmp

Filesize
1.5MB

Download
memory/1948-162-0x0000000077620000-0x00000000777C9000-memory.dmp

Filesize
1.7MB

Download
memory/2300-185-0x0000000077620000-0x00000000777C9000-memory.dmp

Filesize
1.7MB

Download
memory/2300-234-0x00000000741E0000-0x0000000074354000-memory.dmp

Filesize
1.5MB

Download
memory/2864-1-0x0000000001BA0000-0x0000000001CA0000-memory.dmp

Filesize
1024KB

Download
memory/2864-149-0x0000000001BA0000-0x0000000001CA0000-memory.dmp

Filesize
1024KB

Download
memory/2864-138-0x0000000000400000-0x0000000001A3C000-memory.dmp

Filesize
22.2MB

Download
memory/2864-3-0x0000000000400000-0x0000000001A3C000-memory.dmp

Filesize
22.2MB

Download
memory/2864-2-0x0000000000230000-0x000000000029D000-memory.dmp

Filesize
436KB

Download