5dc4c5808ceb622d7a978d2cd41fe6981686e3e509116be06ecbd8bb76aad659

Analysis

max time kernel
122s
max time network
125s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
14/10/2023, 18:03

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General

Target

NEAS.80cc7d12773e555aedb47d9041317b20.exe
Size

365KB
MD5

80cc7d12773e555aedb47d9041317b20
SHA1

7f96ef384e1aedd25676b37c60188c6e3c47a4aa
SHA256

5dc4c5808ceb622d7a978d2cd41fe6981686e3e509116be06ecbd8bb76aad659
SHA512

f1a77a278f9b92871017118db580719b866e563992a0b2f6fff3aabcd8f606af47843e3fcaef89cb9000013b44b5b0baadbd51ca2656f87cfe4e625f59493d7b
SSDEEP

3072:R4wsgTsDAJJRjONJQcwAOwzy8f1StC4SZmGTLFZhh2D+0caj3kyRACE2d:R4wNJJOJflpd46ZLn9ozE2d

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
2412	znwkgzk.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2228-0-0x0000000000400000-0x000000000045F000-memory.dmp	upx
behavioral1/files/0x000a000000012243-6.dat	upx
behavioral1/files/0x000a000000012243-7.dat	upx

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\PROGRA~3\Mozilla\znwkgzk.exe	NEAS.80cc7d12773e555aedb47d9041317b20.exe
File created	C:\PROGRA~3\Mozilla\cskihnk.dll	znwkgzk.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2228	NEAS.80cc7d12773e555aedb47d9041317b20.exe
2412	znwkgzk.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3004 wrote to memory of 2412	3004	taskeng.exe	29
PID 3004 wrote to memory of 2412	3004	taskeng.exe	29
PID 3004 wrote to memory of 2412	3004	taskeng.exe	29
PID 3004 wrote to memory of 2412	3004	taskeng.exe	29

C:\Users\Admin\AppData\Local\Temp\NEAS.80cc7d12773e555aedb47d9041317b20.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.80cc7d12773e555aedb47d9041317b20.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of UnmapMainImage
PID:2228

C:\Windows\system32\taskeng.exe
taskeng.exe {50BC4F54-AB11-4850-B41C-A7A0CB6C2A32} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:3004
- C:\PROGRA~3\Mozilla\znwkgzk.exe
  C:\PROGRA~3\Mozilla\znwkgzk.exe -nfwatvg
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Suspicious use of UnmapMainImage
  PID:2412

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\znwkgzk.exe

Filesize
365KB

MD5
bc06a3475f7615622e86460d96785d89

SHA1
99846b197c07e4b9fbd09d53861cc368601894cc

SHA256
6b8b50fa93d56bb6e1a6b6d65b84177855f8fadb1394b47321f645c27f5458ce

SHA512
309d4eaf2d0d00575be9b3d257b70f413dbd73634708684ec5838516f1b1762d8070205a07085141dc1a0193e0398d372f2768aaf00149a4d94f74b9e89b9398

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

Filesize
365KB

MD5
bc06a3475f7615622e86460d96785d89

SHA1
99846b197c07e4b9fbd09d53861cc368601894cc

SHA256
6b8b50fa93d56bb6e1a6b6d65b84177855f8fadb1394b47321f645c27f5458ce

SHA512
309d4eaf2d0d00575be9b3d257b70f413dbd73634708684ec5838516f1b1762d8070205a07085141dc1a0193e0398d372f2768aaf00149a4d94f74b9e89b9398

Download Submit
memory/2228-0-0x0000000000400000-0x000000000045F000-memory.dmp

Filesize
380KB

Download
memory/2228-1-0x00000000002A0000-0x00000000002FB000-memory.dmp

Filesize
364KB

Download
memory/2228-2-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2228-4-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2228-5-0x00000000002A0000-0x00000000002FB000-memory.dmp

Filesize
364KB

Download
memory/2412-8-0x0000000000520000-0x000000000057B000-memory.dmp

Filesize
364KB

Download
memory/2412-9-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2412-11-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2412-12-0x0000000000520000-0x000000000057B000-memory.dmp

Filesize
364KB

Download