fbf83225989f75420816c2ba12e54dc1dd3f9c1ef22d141540fbc740ba805db8

Analysis

max time kernel
120s
max time network
123s
platform
windows7_x64
resource
win7-20231023-en
resource tags

arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
submitted
03/11/2023, 18:48

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General

Target

NEAS.4d8a1a912c7dd8a77dc1610a33003240_JC.exe
Size

453KB
MD5

4d8a1a912c7dd8a77dc1610a33003240
SHA1

14cc7238cd4e6357e04ef4bd5564e44adc377bd7
SHA256

fbf83225989f75420816c2ba12e54dc1dd3f9c1ef22d141540fbc740ba805db8
SHA512

c773d12fc754258a1280c2b46c3827f2ac655c02697229d5607ab64eb315001d7e78c6dad6f7bc29bdc7002460962f695fb895873d1d813a77cbe412ab5315c9
SSDEEP

12288:o/D6tDiAbURT8U5VqF1wD7HxvE2L6Q16F9O:o/DFRVSF+9E2L6Q

Score

8^/10

persistence

Malware Config

Signatures

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112

Executes dropped EXE 1 IoCs

pid	Process
3032	wwljcul.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\PROGRA~3\Mozilla\sdwojsn.dll	wwljcul.exe
File created	C:\PROGRA~3\Mozilla\wwljcul.exe	NEAS.4d8a1a912c7dd8a77dc1610a33003240_JC.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2780 wrote to memory of 3032	2780	taskeng.exe	29
PID 2780 wrote to memory of 3032	2780	taskeng.exe	29
PID 2780 wrote to memory of 3032	2780	taskeng.exe	29
PID 2780 wrote to memory of 3032	2780	taskeng.exe	29

C:\Users\Admin\AppData\Local\Temp\NEAS.4d8a1a912c7dd8a77dc1610a33003240_JC.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.4d8a1a912c7dd8a77dc1610a33003240_JC.exe"
1⤵
- Drops file in Program Files directory
PID:1576

C:\Windows\system32\taskeng.exe
taskeng.exe {0C4150E6-5758-4B7B-81D5-62290997B8AD} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:2780
- C:\PROGRA~3\Mozilla\wwljcul.exe
  C:\PROGRA~3\Mozilla\wwljcul.exe -anxczaj
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  PID:3032

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:\PROGRA~3\Mozilla\wwljcul.exe

Filesize
453KB

MD5
983579eb61892067b0518b9be84b9c97

SHA1
93bef7630bbf91005e60c9eacb2ed9414fe8a544

SHA256
94131e2f33cf62a5d98a73eed6d7c68822c9e95f765c6f0f3c0a56e65e11c37a

SHA512
a192936f74eb8527512350a4a3b264caa8cf41be0575ec5bdb01f632b7b7aad756a6b8fffabd25bf40abb40f3f163d3d5072fc1f2d4e20c50bf7513e5655b5d6

Download Submit
C:\PROGRA~3\Mozilla\wwljcul.exe

Filesize
453KB

MD5
983579eb61892067b0518b9be84b9c97

SHA1
93bef7630bbf91005e60c9eacb2ed9414fe8a544

SHA256
94131e2f33cf62a5d98a73eed6d7c68822c9e95f765c6f0f3c0a56e65e11c37a

SHA512
a192936f74eb8527512350a4a3b264caa8cf41be0575ec5bdb01f632b7b7aad756a6b8fffabd25bf40abb40f3f163d3d5072fc1f2d4e20c50bf7513e5655b5d6

Download Submit
memory/1576-0-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/1576-1-0x0000000000280000-0x00000000002DB000-memory.dmp

Filesize
364KB

Download
memory/1576-7-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/3032-10-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/3032-11-0x0000000000220000-0x000000000027B000-memory.dmp

Filesize
364KB

Download
memory/3032-17-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download