efd4294e5c0c63734549b99acf4497a713ca225670af297d14a1eeb5a8858c97

Analysis

max time kernel
91s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
11-02-2024 11:20

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General

Target

RCO.exe
Size

215KB
MD5

855687fbdb46e1fb4a0fbb6fa73bead6
SHA1

5e97ea3cb81d57a462ff99f0e4dc7ede1da4ff0e
SHA256

efd4294e5c0c63734549b99acf4497a713ca225670af297d14a1eeb5a8858c97
SHA512

99f4eb50b3f68500776a85be57cf5b4f5644cc560eb51c9598a11075de04332e47f35691b12cd6da282cc6ea2d8290c29aef72718f37e5e1aeb95f8a33d6790a
SSDEEP

6144:MBlkZvaF4NTBNw7zzALBp7VMfct/hSKUKq438e7Qo/:MoSWNTjezALPtt/Bj38eh/

Score

8^/10

Malware Config

Signatures

Blocklisted process makes network request 1 IoCs

flow	pid	Process
15	2000	powershell.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
14	raw.githubusercontent.com
15	raw.githubusercontent.com

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2000	powershell.exe
2000	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2000	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 640 wrote to memory of 4580	640	RCO.exe	85
PID 640 wrote to memory of 4580	640	RCO.exe	85
PID 4580 wrote to memory of 2492	4580	cmd.exe	86
PID 4580 wrote to memory of 2492	4580	cmd.exe	86
PID 4580 wrote to memory of 2000	4580	cmd.exe	87
PID 4580 wrote to memory of 2000	4580	cmd.exe	87

C:\Users\Admin\AppData\Local\Temp\RCO.exe
"C:\Users\Admin\AppData\Local\Temp\RCO.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:640
- C:\Windows\system32\cmd.exe
  "C:\Windows\sysnative\cmd" /c "C:\Users\Admin\AppData\Local\Temp\692A.tmp\692B.tmp\692C.bat C:\Users\Admin\AppData\Local\Temp\RCO.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4580
- - C:\Windows\system32\mode.com
    mode 128, 35
    3⤵
    PID:2492
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell wget https://raw.githubusercontent.com/o5u3/Roblox-Client-Optimizer/version/latestversion -OutFile latestversion.txt
    3⤵
    - Blocklisted process makes network request
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2000

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:716

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\692A.tmp\692B.tmp\692C.bat

Filesize
14KB

MD5
4ece219043489414902b81403fb4b658

SHA1
653a3102b7162e7c4219353da8f1267326adc274

SHA256
a38910cc1ac405f55ce1badd457c3d58413d68ea0938c5c716601687f43b0972

SHA512
7e69d68759d80775e29c4002413154c9bcf12c48758fc65523d5f6107ce8ba566a0d137b8a674062bde9e6900d7a311b5549745ed6abc8e144a1c62800c48c49

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_23jucpf0.ncf.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\latestversion.txt

Filesize
5B

MD5
31749cc9ea279d486ee9975ea73d9497

SHA1
2d649081ab7d6b92eef969fd24cc08fe6fa02a32

SHA256
4c92a58982fb42939ea5c4c725140e405395bb65f594ee5d73586d19ebbe9716

SHA512
e0a72b1d3559c42bb455d1baaca30bac664ac9a946568c2a84a01ff85ecf6a602b60307dc5fe17210ee4539199f2e2ad544ed9030059e2c16131c712680072a4

Download Submit
memory/2000-7-0x000001AA64BB0000-0x000001AA64BD2000-memory.dmp

Filesize
136KB

Download
memory/2000-12-0x00007FFD73C80000-0x00007FFD74741000-memory.dmp

Filesize
10.8MB

Download
memory/2000-14-0x000001AA64C50000-0x000001AA64C60000-memory.dmp

Filesize
64KB

Download
memory/2000-13-0x000001AA64C50000-0x000001AA64C60000-memory.dmp

Filesize
64KB

Download
memory/2000-15-0x000001AA64C50000-0x000001AA64C60000-memory.dmp

Filesize
64KB

Download
memory/2000-19-0x00007FFD73C80000-0x00007FFD74741000-memory.dmp

Filesize
10.8MB

Download