38fae381d6a3880e39c5b6336553d55c6532be7f3b0d7ac0d2194e33a3c6c0f4

Analysis

max time kernel
148s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
24-08-2023 11:16

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General

Target

38fae381d6a3880e39c5b6336553d55c6532be7f3b0d7ac0d2194e33a3c6c0f4.exe
Size

204KB
MD5

53663861f614b55669af1510d1b81cc5
SHA1

9910402032380721245cef733064d982763db8f0
SHA256

38fae381d6a3880e39c5b6336553d55c6532be7f3b0d7ac0d2194e33a3c6c0f4
SHA512

330bd4079ef39575de79eb6a88a9957c622383ea2aebd80de9f2eb92b3be6f4c60f82693ea0a3908d5e80e1c08016967f723652406bf6195824bfbd03544e203
SSDEEP

6144:Dz1xOecgEnOxUwWz1w4mcH+dZvF4lBFusBQ:31seJzWz1l+LI

Score

7^/10

upx

Malware Config

Signatures

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/1376-0-0x0000000000510000-0x00000000005A7000-memory.dmp	upx
behavioral2/memory/1376-28-0x0000000000510000-0x00000000005A7000-memory.dmp	upx

Drops file in System32 directory 5 IoCs

description	ioc	Process
File created	C:\Windows\System32\DataExchangetx.sys	relog.exe
File created	C:\Windows\System32\DscTimernnje.sys	relog.exe
File created	C:\Windows\System32\SystemPropertiesPerformanceLS.sys	relog.exe
File created	C:\Windows\System32\WMALFXGFXDSP9B14.sys	relog.exe
File created	C:\Windows\System32\chs_singlechar_pinyinrve.sys	relog.exe

Drops file in Windows directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\WindowsShell6032.log	38fae381d6a3880e39c5b6336553d55c6532be7f3b0d7ac0d2194e33a3c6c0f4.exe
File opened for modification	C:\Windows\WindowSystemNewUpdate17.log	RdpSa.exe
File opened for modification	C:\Windows\WindowTerminalVaild568.log	RdpSa.exe
File opened for modification	C:\Windows\WindowMicrosoftNET33.log	RdpSa.exe
File opened for modification	C:\Windows\WindowsShell152467.log	RdpSa.exe
File opened for modification	C:\Windows\WindowRedSystem80.log	relog.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 60 IoCs

pid	Process
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
5056	RdpSa.exe
5056	RdpSa.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe
928	relog.exe

Suspicious behavior: LoadsDriver 5 IoCs

pid	Process
668	Process not Found
668	Process not Found
668	Process not Found
668	Process not Found
668	Process not Found

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeDebugPrivilege	1376	38fae381d6a3880e39c5b6336553d55c6532be7f3b0d7ac0d2194e33a3c6c0f4.exe
Token: SeDebugPrivilege	5056	RdpSa.exe
Token: SeIncBasePriorityPrivilege	1376	38fae381d6a3880e39c5b6336553d55c6532be7f3b0d7ac0d2194e33a3c6c0f4.exe
Token: SeDebugPrivilege	5056	RdpSa.exe
Token: SeDebugPrivilege	5056	RdpSa.exe
Token: SeDebugPrivilege	5056	RdpSa.exe
Token: SeDebugPrivilege	5056	RdpSa.exe
Token: SeDebugPrivilege	928	relog.exe
Token: SeDebugPrivilege	5056	RdpSa.exe
Token: SeDebugPrivilege	5056	RdpSa.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1376 wrote to memory of 5056	1376	38fae381d6a3880e39c5b6336553d55c6532be7f3b0d7ac0d2194e33a3c6c0f4.exe	83
PID 1376 wrote to memory of 5056	1376	38fae381d6a3880e39c5b6336553d55c6532be7f3b0d7ac0d2194e33a3c6c0f4.exe	83
PID 1376 wrote to memory of 5056	1376	38fae381d6a3880e39c5b6336553d55c6532be7f3b0d7ac0d2194e33a3c6c0f4.exe	83
PID 1376 wrote to memory of 5056	1376	38fae381d6a3880e39c5b6336553d55c6532be7f3b0d7ac0d2194e33a3c6c0f4.exe	83
PID 1376 wrote to memory of 5056	1376	38fae381d6a3880e39c5b6336553d55c6532be7f3b0d7ac0d2194e33a3c6c0f4.exe	83
PID 1376 wrote to memory of 5056	1376	38fae381d6a3880e39c5b6336553d55c6532be7f3b0d7ac0d2194e33a3c6c0f4.exe	83
PID 1376 wrote to memory of 1816	1376	38fae381d6a3880e39c5b6336553d55c6532be7f3b0d7ac0d2194e33a3c6c0f4.exe	88
PID 1376 wrote to memory of 1816	1376	38fae381d6a3880e39c5b6336553d55c6532be7f3b0d7ac0d2194e33a3c6c0f4.exe	88
PID 1376 wrote to memory of 1816	1376	38fae381d6a3880e39c5b6336553d55c6532be7f3b0d7ac0d2194e33a3c6c0f4.exe	88
PID 5056 wrote to memory of 928	5056	RdpSa.exe	94
PID 5056 wrote to memory of 928	5056	RdpSa.exe	94
PID 5056 wrote to memory of 928	5056	RdpSa.exe	94
PID 5056 wrote to memory of 928	5056	RdpSa.exe	94
PID 5056 wrote to memory of 928	5056	RdpSa.exe	94
PID 5056 wrote to memory of 928	5056	RdpSa.exe	94

C:\Users\Admin\AppData\Local\Temp\38fae381d6a3880e39c5b6336553d55c6532be7f3b0d7ac0d2194e33a3c6c0f4.exe
"C:\Users\Admin\AppData\Local\Temp\38fae381d6a3880e39c5b6336553d55c6532be7f3b0d7ac0d2194e33a3c6c0f4.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1376
- C:\Windows\SysWOW64\RdpSa.exe
  "C:\Windows\SysWOW64\RdpSa.exe"
  2⤵
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5056
- - C:\Windows\SysWOW64\relog.exe
    "C:\Windows\SysWOW64\relog.exe"
    3⤵
    - Drops file in System32 directory
    - Drops file in Windows directory
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:928
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\38FAE3~1.EXE > nul
  2⤵
  PID:1816

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:\Windows\WindowRedSystem80.log

Filesize
7KB

MD5
08b316f86cc2edf628534b035314f42a

SHA1
e8b6142b8f2e83ed67d2c82646c3af17bcdfab65

SHA256
2d75b2bc9d4521e48a106579085e85810fba16ab8ceb9db0da1a080522530737

SHA512
f1612fb1a152b8fa49cf9cdf492cecdc1b65c2bfa5c2e1954f84e741fcf281ca86496ecf6c85e2b8471f59d0213715421fc55b739300d50db56ea6f2953a0b4f

Download Submit
C:\Windows\WindowSystemNewUpdate17.log

Filesize
6KB

MD5
5e22d0b979e664c5cb7c7cd9cd045fbf

SHA1
59e6efff96e088e248711649d100e261e8401a06

SHA256
042ffaeeff46d9a7a5a752caa9687a22bf535a6012ed39907ca4f679bf86cdf7

SHA512
47a59d065b9ab7ff10de08785d27b3dafca4e88f7f8e2fa65430694d7a42d557757a550768fdfd5806849bc212fc9419395ac49bb6726df6f8a4f6f63c42f0c2

Download Submit
memory/928-121-0x0000000010000000-0x0000000010601000-memory.dmp

Filesize
6.0MB

Download
memory/928-105-0x0000000001090000-0x00000000010AB000-memory.dmp

Filesize
108KB

Download
memory/928-156-0x0000000010000000-0x0000000010601000-memory.dmp

Filesize
6.0MB

Download
memory/928-125-0x0000000010000000-0x0000000010601000-memory.dmp

Filesize
6.0MB

Download
memory/928-100-0x0000000001090000-0x00000000010AB000-memory.dmp

Filesize
108KB

Download
memory/928-127-0x0000000010000000-0x0000000010601000-memory.dmp

Filesize
6.0MB

Download
memory/928-94-0x0000000000800000-0x0000000000E0C000-memory.dmp

Filesize
6.0MB

Download
memory/928-126-0x0000000001090000-0x00000000010AB000-memory.dmp

Filesize
108KB

Download
memory/928-123-0x0000000010000000-0x0000000010601000-memory.dmp

Filesize
6.0MB

Download
memory/928-120-0x0000000010000000-0x0000000010601000-memory.dmp

Filesize
6.0MB

Download
memory/928-163-0x0000000010000000-0x0000000010601000-memory.dmp

Filesize
6.0MB

Download
memory/928-107-0x0000000010000000-0x0000000010601000-memory.dmp

Filesize
6.0MB

Download
memory/1376-0-0x0000000000510000-0x00000000005A7000-memory.dmp

Filesize
604KB

Download
memory/1376-28-0x0000000000510000-0x00000000005A7000-memory.dmp

Filesize
604KB

Download
memory/5056-41-0x0000000003480000-0x0000000003579000-memory.dmp

Filesize
996KB

Download
memory/5056-149-0x0000000003480000-0x0000000003579000-memory.dmp

Filesize
996KB

Download
memory/5056-70-0x0000000004260000-0x0000000004739000-memory.dmp

Filesize
4.8MB

Download
memory/5056-59-0x00000000036D0000-0x0000000003736000-memory.dmp

Filesize
408KB

Download
memory/5056-45-0x0000000003480000-0x0000000003579000-memory.dmp

Filesize
996KB

Download
memory/5056-48-0x00000000035C0000-0x00000000035F8000-memory.dmp

Filesize
224KB

Download
memory/5056-42-0x0000000003480000-0x0000000003579000-memory.dmp

Filesize
996KB

Download
memory/5056-33-0x0000000003480000-0x0000000003579000-memory.dmp

Filesize
996KB

Download
memory/5056-8-0x0000000010000000-0x0000000010057000-memory.dmp

Filesize
348KB

Download
memory/5056-101-0x0000000003480000-0x0000000003579000-memory.dmp

Filesize
996KB

Download
memory/5056-152-0x0000000003480000-0x0000000003579000-memory.dmp

Filesize
996KB

Download
memory/5056-7-0x00000000010B0000-0x00000000010CB000-memory.dmp

Filesize
108KB

Download
memory/5056-6-0x00000000010B0000-0x00000000010CB000-memory.dmp

Filesize
108KB

Download
memory/5056-4-0x00000000010B0000-0x00000000010CB000-memory.dmp

Filesize
108KB

Download
memory/5056-2-0x0000000000940000-0x00000000009A7000-memory.dmp

Filesize
412KB

Download
memory/5056-284-0x0000000009E60000-0x000000000A1E3000-memory.dmp

Filesize
3.5MB

Download
memory/5056-286-0x0000000009E60000-0x000000000A1E3000-memory.dmp

Filesize
3.5MB

Download
memory/5056-296-0x0000000009E60000-0x000000000A1E3000-memory.dmp

Filesize
3.5MB

Download