03c635ad46a95d035f72db802b8393525fcfd89a692276d22184dbdc32919288

Analysis

max time kernel
118s
max time network
130s
platform
windows7_x64
resource
win7-20231023-en
resource tags

arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
submitted
12/11/2023, 21:46

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General

Target

NEAS.c0c84aa1c63530b003f3296cb2db24e0.exe
Size

369KB
MD5

c0c84aa1c63530b003f3296cb2db24e0
SHA1

36495c075d72102545a145f29148a5dd8e68e940
SHA256

03c635ad46a95d035f72db802b8393525fcfd89a692276d22184dbdc32919288
SHA512

7c2c3125a9ca7b42bab4c0389c788b4fc9ab1350c2aa5da96a93721ff77ff3071e1ef97b6aac0602a9d67b5702824b6300bef4f29497b54efc335822d02d6502
SSDEEP

6144:UHEagZcctnCqhPHbMMCji9B0AwV1OkF7YH62LIHO8OIANZwtvTvF9fjd:UHEagZccMIPHwxi9RwyxH61O8OIs0Z

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

Executes dropped EXE 1 IoCs

pid	Process
2624	wwljcul.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2576-0-0x0000000000400000-0x000000000045F000-memory.dmp	upx
behavioral1/files/0x0035000000016fda-5.dat	upx
behavioral1/memory/2624-7-0x0000000000400000-0x000000000045F000-memory.dmp	upx
behavioral1/files/0x0035000000016fda-6.dat	upx

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\PROGRA~3\Mozilla\wwljcul.exe	NEAS.c0c84aa1c63530b003f3296cb2db24e0.exe
File created	C:\PROGRA~3\Mozilla\sdwojsn.dll	wwljcul.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2576	NEAS.c0c84aa1c63530b003f3296cb2db24e0.exe
2624	wwljcul.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2284 wrote to memory of 2624	2284	taskeng.exe	29
PID 2284 wrote to memory of 2624	2284	taskeng.exe	29
PID 2284 wrote to memory of 2624	2284	taskeng.exe	29
PID 2284 wrote to memory of 2624	2284	taskeng.exe	29

C:\Users\Admin\AppData\Local\Temp\NEAS.c0c84aa1c63530b003f3296cb2db24e0.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.c0c84aa1c63530b003f3296cb2db24e0.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of UnmapMainImage
PID:2576

C:\Windows\system32\taskeng.exe
taskeng.exe {9CC4B53F-E515-4032-A848-BDF1F86B7619} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:2284
- C:\PROGRA~3\Mozilla\wwljcul.exe
  C:\PROGRA~3\Mozilla\wwljcul.exe -anxczaj
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Suspicious use of UnmapMainImage
  PID:2624

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
369KB

MD5
8e75cd170285feec939e1f4775c22e72

SHA1
aec8110215937261a53f05b675c235b22aa28625

SHA256
de081f344ed3020f751b861ead0443e08c9620127b3ac326978f3b4c4f647064

SHA512
3c37146e22c1e1f81a9bd712c6b4a05a68662f19aa7d226fea13346ab8ecde9c9a936506c36911a42aeeb9abf91631228dd2ea294689a5cb52996bf43f0428d1

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

Filesize
369KB

MD5
8e75cd170285feec939e1f4775c22e72

SHA1
aec8110215937261a53f05b675c235b22aa28625

SHA256
de081f344ed3020f751b861ead0443e08c9620127b3ac326978f3b4c4f647064

SHA512
3c37146e22c1e1f81a9bd712c6b4a05a68662f19aa7d226fea13346ab8ecde9c9a936506c36911a42aeeb9abf91631228dd2ea294689a5cb52996bf43f0428d1

Download Submit
memory/2576-1-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2576-0-0x0000000000400000-0x000000000045F000-memory.dmp

Filesize
380KB

Download
memory/2576-2-0x0000000000310000-0x000000000036B000-memory.dmp

Filesize
364KB

Download
memory/2576-4-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2624-9-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2624-8-0x00000000003A0000-0x00000000003FB000-memory.dmp

Filesize
364KB

Download
memory/2624-7-0x0000000000400000-0x000000000045F000-memory.dmp

Filesize
380KB

Download
memory/2624-12-0x00000000003A0000-0x00000000003FB000-memory.dmp

Filesize
364KB

Download
memory/2624-11-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download