a44dc28094725c96a0ed583224e1191f501a88abeceb2a5301ae31fd909bc066

Analysis

max time kernel
141s
max time network
125s
platform
windows7_x64
resource
win7-20231023-en
resource tags

arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
submitted
05-11-2023 19:09

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General

Target

NEAS.2341a28579fd97ced6f7d653be684e40_JC.dll
Size

76KB
MD5

2341a28579fd97ced6f7d653be684e40
SHA1

83078ca90470a22c61440773f30ff14da5687bdf
SHA256

a44dc28094725c96a0ed583224e1191f501a88abeceb2a5301ae31fd909bc066
SHA512

31e2993c3f7c314ff51e2f4db73bcaea2a9ad641a4bc61cd2988545ac8075d2740bab62011697e40830a9aa1ce634311f7652316d738d8735b36b237f6c10152
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZG+MUx/:c8y93KQjy7G55riF1cMo03MW

Score

8^/10

persistence upx

Malware Config

Signatures

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2760-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2760-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2760-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2760-6-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2760-9-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2364	2760	WerFault.exe	28

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2760	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2576 wrote to memory of 2760	2576	rundll32.exe	28
PID 2576 wrote to memory of 2760	2576	rundll32.exe	28
PID 2576 wrote to memory of 2760	2576	rundll32.exe	28
PID 2576 wrote to memory of 2760	2576	rundll32.exe	28
PID 2576 wrote to memory of 2760	2576	rundll32.exe	28
PID 2576 wrote to memory of 2760	2576	rundll32.exe	28
PID 2576 wrote to memory of 2760	2576	rundll32.exe	28
PID 2760 wrote to memory of 2364	2760	rundll32.exe	29
PID 2760 wrote to memory of 2364	2760	rundll32.exe	29
PID 2760 wrote to memory of 2364	2760	rundll32.exe	29
PID 2760 wrote to memory of 2364	2760	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.2341a28579fd97ced6f7d653be684e40_JC.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2576
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.2341a28579fd97ced6f7d653be684e40_JC.dll,#1
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2760
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2760 -s 328
    3⤵
    - Program crash
    PID:2364

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

memory/2760-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2760-2-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2760-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2760-1-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

Download
memory/2760-6-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2760-9-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download