4fc3845ed40811ea83668c46f66054618bf97ba6f48684ff51a78abb7e759269

Analysis

max time kernel
148s
max time network
156s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
14/10/2023, 17:57

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General

Target

NEAS.6856213383478f6eb87a5870ccb16770.exe
Size

228KB
MD5

6856213383478f6eb87a5870ccb16770
SHA1

36171c6eebceacc7869be3f28eb3733418e89ea0
SHA256

4fc3845ed40811ea83668c46f66054618bf97ba6f48684ff51a78abb7e759269
SHA512

342ac51e7fba40e08f5b5f473b03ec7171c53d74c3fd678ca1c3cd34e95e3c4101ccc9a17cdbea17055bcb5a7c62821b2d9fbfadab81a46fa903c9bacf6e8bda
SSDEEP

3072:URtnaxdjv3SoCrKdKUUTNHY5Snf8TvHTxK3STrOdHa5S2jbxWGqJs8:dj8rKdKUUhHYE0T7ciXOdHa5SbGqJj

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
2704	yzgwzlh.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\PROGRA~3\Mozilla\yzgwzlh.exe	NEAS.6856213383478f6eb87a5870ccb16770.exe
File created	C:\PROGRA~3\Mozilla\jhnnyvm.dll	yzgwzlh.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2712	NEAS.6856213383478f6eb87a5870ccb16770.exe
2704	yzgwzlh.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2660 wrote to memory of 2704	2660	taskeng.exe	30
PID 2660 wrote to memory of 2704	2660	taskeng.exe	30
PID 2660 wrote to memory of 2704	2660	taskeng.exe	30
PID 2660 wrote to memory of 2704	2660	taskeng.exe	30

C:\Users\Admin\AppData\Local\Temp\NEAS.6856213383478f6eb87a5870ccb16770.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.6856213383478f6eb87a5870ccb16770.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of UnmapMainImage
PID:2712

C:\Windows\system32\taskeng.exe
taskeng.exe {C1F13003-591F-40E0-8B11-649B486546EF} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:2660
- C:\PROGRA~3\Mozilla\yzgwzlh.exe
  C:\PROGRA~3\Mozilla\yzgwzlh.exe -chuvxnb
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Suspicious use of UnmapMainImage
  PID:2704

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\yzgwzlh.exe

Filesize
228KB

MD5
6250030955dec3666bd89fb01520f17d

SHA1
c54884bf37c5689460da471059f1733795665821

SHA256
f8bc7408993aa319c92952658e62913570757142911eec60d4179384c4601e09

SHA512
f5246670c69129afc275be6a31111b320452fb7f8b0dd2c60a8b07630d7aa6122d5a459a383994abe013ae14c879d376db70aec15e06b243bc3d1b18ccc39859

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

Filesize
228KB

MD5
6250030955dec3666bd89fb01520f17d

SHA1
c54884bf37c5689460da471059f1733795665821

SHA256
f8bc7408993aa319c92952658e62913570757142911eec60d4179384c4601e09

SHA512
f5246670c69129afc275be6a31111b320452fb7f8b0dd2c60a8b07630d7aa6122d5a459a383994abe013ae14c879d376db70aec15e06b243bc3d1b18ccc39859

Download Submit
memory/2704-10-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2704-9-0x0000000000460000-0x00000000004BC000-memory.dmp

Filesize
368KB

Download
memory/2704-12-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2704-13-0x0000000000460000-0x00000000004BC000-memory.dmp

Filesize
368KB

Download
memory/2712-0-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2712-2-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2712-1-0x0000000000330000-0x000000000038C000-memory.dmp

Filesize
368KB

Download
memory/2712-4-0x0000000000330000-0x000000000038C000-memory.dmp

Filesize
368KB

Download
memory/2712-5-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2712-6-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download