10810b7f02a353b96a1e5a56de9c2ec66b736de8a8042eac3adf08fd57034544

Analysis

max time kernel
120s
max time network
124s
platform
windows7_x64
resource
win7-20231025-en
resource tags

arch:x64arch:x86image:win7-20231025-enlocale:en-usos:windows7-x64system
submitted
01-11-2023 23:43

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General

Target

NEAS.72481fd53a5282fb1f0ff737ad749610_JC.exe
Size

327KB
MD5

72481fd53a5282fb1f0ff737ad749610
SHA1

38d903a3db603fa5f6daa08f01ff3f349df569d5
SHA256

10810b7f02a353b96a1e5a56de9c2ec66b736de8a8042eac3adf08fd57034544
SHA512

b08149161a3202a510b5583591a9137838376b93ed33928b79cff77a5faae5756670cf5ed4a42a20a66c5224f1a6892140da5df4d66edd24fd08d3ad46b864ac
SSDEEP

3072:xANA6IMfSLilGMXEVP79SE8pve/RysNPDuIvT4FBDv1KS2jbxWGqJsh:WiMF/X479SEAanPSIv0FB5KSbGqJO

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
2656	kymnayk.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\PROGRA~3\Mozilla\kymnayk.exe	NEAS.72481fd53a5282fb1f0ff737ad749610_JC.exe
File created	C:\PROGRA~3\Mozilla\iuxrktg.dll	kymnayk.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2124	NEAS.72481fd53a5282fb1f0ff737ad749610_JC.exe
2656	kymnayk.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3056 wrote to memory of 2656	3056	taskeng.exe	29
PID 3056 wrote to memory of 2656	3056	taskeng.exe	29
PID 3056 wrote to memory of 2656	3056	taskeng.exe	29
PID 3056 wrote to memory of 2656	3056	taskeng.exe	29

C:\Users\Admin\AppData\Local\Temp\NEAS.72481fd53a5282fb1f0ff737ad749610_JC.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.72481fd53a5282fb1f0ff737ad749610_JC.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of UnmapMainImage
PID:2124

C:\Windows\system32\taskeng.exe
taskeng.exe {6EE90A8D-6D8B-495A-BB7F-1543A8B30C80} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:3056
- C:\PROGRA~3\Mozilla\kymnayk.exe
  C:\PROGRA~3\Mozilla\kymnayk.exe -dtmxjcd
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Suspicious use of UnmapMainImage
  PID:2656

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\kymnayk.exe

Filesize
327KB

MD5
d9a1945c59e8811ce4ba98906743b006

SHA1
db26099de4b76b8492f219780d0d4dfacc7e37b0

SHA256
15587e04996e6009f3370d22c9598e438992accc7afc3319f4e3559a9af47775

SHA512
0fab67ef5659959ccd763f146a04fa49cfc2d836968d7b3c2fa61eaf63b61c0d372d3e3df5c41fe7136be3683cb49f8fd229d92f83e6cba35a076147c9fa3973

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

Filesize
327KB

MD5
d9a1945c59e8811ce4ba98906743b006

SHA1
db26099de4b76b8492f219780d0d4dfacc7e37b0

SHA256
15587e04996e6009f3370d22c9598e438992accc7afc3319f4e3559a9af47775

SHA512
0fab67ef5659959ccd763f146a04fa49cfc2d836968d7b3c2fa61eaf63b61c0d372d3e3df5c41fe7136be3683cb49f8fd229d92f83e6cba35a076147c9fa3973

Download Submit
memory/2124-0-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2124-1-0x0000000001C00000-0x0000000001C5C000-memory.dmp

Filesize
368KB

Download
memory/2124-2-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2124-4-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2656-7-0x0000000000530000-0x000000000058C000-memory.dmp

Filesize
368KB

Download
memory/2656-8-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2656-10-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2656-11-0x0000000000530000-0x000000000058C000-memory.dmp

Filesize
368KB

Download