bd5cb5ed04f67f5a6f2f5411e9ad5c457c0c3e3bf3a38e4996624bdfba01d98d

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
24-05-2024 07:42

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General

Target

556fc723a7eab0f91113f11d7171070d3875bbfca8f5e2397500b5ee832c0310.exe
Size

668KB
MD5

b4bef785be57804c1e24834a6ab4350d
SHA1

f3d72a3e355d8ac49cdb9a1a6edcda419fddd59d
SHA256

556fc723a7eab0f91113f11d7171070d3875bbfca8f5e2397500b5ee832c0310
SHA512

bbfab441a3be6e3932a6b4c2f5d72d02db063932a6953f187e62e8f1e74949dad45e8a95feab54cc6dc08559528f54da8acd7592c7db2c6bdde35a04a0949af8
SSDEEP

12288:GMrCy90or6LX9RTEXbdWPUx4rT7IivEpgOw0KcoeWbc0W54cT:0yRi/TELMRE6Owy/McX

Score

7^/10

persistence

Malware Config

Signatures

.NET Reactor proctector 2 IoCs

Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

Processes:

resource	yara_rule
behavioral5/memory/1224-15-0x00000000022B0000-0x00000000022D0000-memory.dmp	net_reactor
behavioral5/memory/1224-17-0x00000000024A0000-0x00000000024BE000-memory.dmp	net_reactor

Executes dropped EXE 3 IoCs

Processes:

eU6Ae86.exe2MF2237.exe3pm54fr.exe

pid process

4428 eU6Ae86.exe
1224 2MF2237.exe
3872 3pm54fr.exe

pid	process
4428	eU6Ae86.exe
1224	2MF2237.exe
3872	3pm54fr.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

eU6Ae86.exe556fc723a7eab0f91113f11d7171070d3875bbfca8f5e2397500b5ee832c0310.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup1 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP001.TMP\\\""	eU6Ae86.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	556fc723a7eab0f91113f11d7171070d3875bbfca8f5e2397500b5ee832c0310.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

2MF2237.exe

description pid process

Token: SeDebugPrivilege 1224 2MF2237.exe

description	pid	process
Token: SeDebugPrivilege	1224	2MF2237.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

556fc723a7eab0f91113f11d7171070d3875bbfca8f5e2397500b5ee832c0310.exeeU6Ae86.exe

description	pid	process	target process
PID 3040 wrote to memory of 4428	3040	556fc723a7eab0f91113f11d7171070d3875bbfca8f5e2397500b5ee832c0310.exe	eU6Ae86.exe
PID 3040 wrote to memory of 4428	3040	556fc723a7eab0f91113f11d7171070d3875bbfca8f5e2397500b5ee832c0310.exe	eU6Ae86.exe
PID 3040 wrote to memory of 4428	3040	556fc723a7eab0f91113f11d7171070d3875bbfca8f5e2397500b5ee832c0310.exe	eU6Ae86.exe
PID 4428 wrote to memory of 1224	4428	eU6Ae86.exe	2MF2237.exe
PID 4428 wrote to memory of 1224	4428	eU6Ae86.exe	2MF2237.exe
PID 4428 wrote to memory of 1224	4428	eU6Ae86.exe	2MF2237.exe
PID 4428 wrote to memory of 3872	4428	eU6Ae86.exe	3pm54fr.exe
PID 4428 wrote to memory of 3872	4428	eU6Ae86.exe	3pm54fr.exe
PID 4428 wrote to memory of 3872	4428	eU6Ae86.exe	3pm54fr.exe

C:\Users\Admin\AppData\Local\Temp\556fc723a7eab0f91113f11d7171070d3875bbfca8f5e2397500b5ee832c0310.exe
"C:\Users\Admin\AppData\Local\Temp\556fc723a7eab0f91113f11d7171070d3875bbfca8f5e2397500b5ee832c0310.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3040
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\eU6Ae86.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\eU6Ae86.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:4428
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2MF2237.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2MF2237.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:1224
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3pm54fr.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3pm54fr.exe
    3⤵
    - Executes dropped EXE
    PID:3872

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\eU6Ae86.exe

Filesize
454KB

MD5
eabd7adc8ded1f1acaee81b36c58138f

SHA1
e420e3efab20697bea34223e60ec53d99da59ca8

SHA256
f3ed6911da5361709ae34f486285416b7dee7a09ccd607ea1938956a97dd2710

SHA512
5a723a031385b323e9306c46c3f9e2432edd08dde47512a7c6c7fb1c62df97e18b41d2676fd4dc91633f3504e461225991b25e5f2885ab5e7cc9483a597d534f

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2MF2237.exe

Filesize
189KB

MD5
f4af3a9bb5b128ea7f4a49016ae8de1f

SHA1
77e47932af41b3af5bfff73d2a4c9773dc224f0d

SHA256
195fa6ff08dd55ff8f112c0323885bc06e1d28ce38edae26cce1e33b23337ff1

SHA512
1067017da68040e8e1eab228773c37cba180731f8792462d94e1e52cc12eb63e5306b3ffbc1fb4f0047a9d29e8a060649b5914bb25ece9c2c37b75e143c50df2

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3pm54fr.exe

Filesize
369KB

MD5
ca09344fbf4a1dbaffe18eb4a00a931a

SHA1
81d5ed2e00d4d297cda4882641e957eb75d9f9a9

SHA256
6113e109ebd9701ce5c91d223394bf22a027534a4dc46f654afabe53efd16c35

SHA512
c8663715e54d8618464aa2f1edfa3b4d1a6deac744d6fa39a5656937610bdd5af9c9ae6b405a329dc0b965c983330e875f691e2b5c7b9a891cd0bc013df6187f

Download Submit
memory/1224-14-0x0000000074B5E000-0x0000000074B5F000-memory.dmp

Filesize
4KB

Download
memory/1224-15-0x00000000022B0000-0x00000000022D0000-memory.dmp

Filesize
128KB

Download
memory/1224-16-0x0000000004BB0000-0x0000000005154000-memory.dmp

Filesize
5.6MB

Download
memory/1224-18-0x0000000074B50000-0x0000000075300000-memory.dmp

Filesize
7.7MB

Download
memory/1224-17-0x00000000024A0000-0x00000000024BE000-memory.dmp

Filesize
120KB

Download
memory/1224-20-0x0000000004AB0000-0x0000000004B42000-memory.dmp

Filesize
584KB

Download
memory/1224-19-0x0000000074B50000-0x0000000075300000-memory.dmp

Filesize
7.7MB

Download
memory/1224-21-0x0000000074B50000-0x0000000075300000-memory.dmp

Filesize
7.7MB

Download
memory/1224-23-0x0000000074B50000-0x0000000075300000-memory.dmp

Filesize
7.7MB

Download