99fd420c741b9fb74722d584a37fb107dd03e080b666c8283c9f8a374ac2d1d2

Analysis

max time kernel
150s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
11/10/2023, 07:31

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General

Target

99fd420c741b9fb74722d584a37fb107dd03e080b666c8283c9f8a374ac2d1d2.exe
Size

196KB
MD5

b3a71d3cbfd3dcd6850d93ab84e964c0
SHA1

744df70331182cd017ae12d2918e4db163c00918
SHA256

99fd420c741b9fb74722d584a37fb107dd03e080b666c8283c9f8a374ac2d1d2
SHA512

a647abe4c1a7814075d07ff6a2b7dae8496ab01a517562fd4cffdb0584e2aa025552e7231293a79f1e6c885a59deb42673a71bfe68754a12b7b7883a54a837e4
SSDEEP

3072:nDS++nAzJ2FDWPWtOox7p4TWaEHKdm0bme+XRkLZ5yUEg:DS+xF8DWi3ATW/qo0bme+Bgjydg

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
2084	opljoq.exe
4616	opljoq.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\UC\opljoq.exe	99fd420c741b9fb74722d584a37fb107dd03e080b666c8283c9f8a374ac2d1d2.exe
File opened for modification	C:\Program Files (x86)\UC\opljoq.exe	99fd420c741b9fb74722d584a37fb107dd03e080b666c8283c9f8a374ac2d1d2.exe
File opened for modification	C:\Program Files (x86)\UC\opljoq.exe	attrib.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2200	99fd420c741b9fb74722d584a37fb107dd03e080b666c8283c9f8a374ac2d1d2.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2200	99fd420c741b9fb74722d584a37fb107dd03e080b666c8283c9f8a374ac2d1d2.exe
2200	99fd420c741b9fb74722d584a37fb107dd03e080b666c8283c9f8a374ac2d1d2.exe
2084	opljoq.exe
2084	opljoq.exe
4616	opljoq.exe
4616	opljoq.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2200 wrote to memory of 4388	2200	99fd420c741b9fb74722d584a37fb107dd03e080b666c8283c9f8a374ac2d1d2.exe	86
PID 2200 wrote to memory of 4388	2200	99fd420c741b9fb74722d584a37fb107dd03e080b666c8283c9f8a374ac2d1d2.exe	86
PID 2200 wrote to memory of 4388	2200	99fd420c741b9fb74722d584a37fb107dd03e080b666c8283c9f8a374ac2d1d2.exe	86
PID 2084 wrote to memory of 4616	2084	opljoq.exe	90
PID 2084 wrote to memory of 4616	2084	opljoq.exe	90
PID 2084 wrote to memory of 4616	2084	opljoq.exe	90

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
4388	attrib.exe

C:\Users\Admin\AppData\Local\Temp\99fd420c741b9fb74722d584a37fb107dd03e080b666c8283c9f8a374ac2d1d2.exe
"C:\Users\Admin\AppData\Local\Temp\99fd420c741b9fb74722d584a37fb107dd03e080b666c8283c9f8a374ac2d1d2.exe"
1⤵
- Drops file in Program Files directory
- Suspicious behavior: RenamesItself
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2200
- C:\Windows\SysWOW64\attrib.exe
  attrib +h +s "C:\Program Files (x86)\UC\opljoq.exe"
  2⤵
  - Drops file in Program Files directory
  - Views/modifies file attributes
  PID:4388

C:\Program Files (x86)\UC\opljoq.exe
"C:\Program Files (x86)\UC\opljoq.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2084
- C:\Program Files (x86)\UC\opljoq.exe
  "C:\Program Files (x86)\UC\opljoq.exe" Win7
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:4616

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\UC\opljoq.exe

Filesize
196KB

MD5
b3a71d3cbfd3dcd6850d93ab84e964c0

SHA1
744df70331182cd017ae12d2918e4db163c00918

SHA256
99fd420c741b9fb74722d584a37fb107dd03e080b666c8283c9f8a374ac2d1d2

SHA512
a647abe4c1a7814075d07ff6a2b7dae8496ab01a517562fd4cffdb0584e2aa025552e7231293a79f1e6c885a59deb42673a71bfe68754a12b7b7883a54a837e4

Download Submit
C:\Program Files (x86)\UC\opljoq.exe

Filesize
196KB

MD5
b3a71d3cbfd3dcd6850d93ab84e964c0

SHA1
744df70331182cd017ae12d2918e4db163c00918

SHA256
99fd420c741b9fb74722d584a37fb107dd03e080b666c8283c9f8a374ac2d1d2

SHA512
a647abe4c1a7814075d07ff6a2b7dae8496ab01a517562fd4cffdb0584e2aa025552e7231293a79f1e6c885a59deb42673a71bfe68754a12b7b7883a54a837e4

Download Submit
C:\Program Files (x86)\UC\opljoq.exe

Filesize
196KB

MD5
b3a71d3cbfd3dcd6850d93ab84e964c0

SHA1
744df70331182cd017ae12d2918e4db163c00918

SHA256
99fd420c741b9fb74722d584a37fb107dd03e080b666c8283c9f8a374ac2d1d2

SHA512
a647abe4c1a7814075d07ff6a2b7dae8496ab01a517562fd4cffdb0584e2aa025552e7231293a79f1e6c885a59deb42673a71bfe68754a12b7b7883a54a837e4

Download Submit
memory/2200-0-0x0000000010000000-0x000000001000E000-memory.dmp

Filesize
56KB

Download