2d6c0e0739caa8fb53bf16ecbd9f6cf19b7ab380480f3b72bac5d0cb5833fc17

Analysis

max time kernel
269s
max time network
320s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
16/10/2023, 18:31

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General

Target

NEAS.a55c29117ae89e88594821a99f607f20.exe
Size

220KB
MD5

a55c29117ae89e88594821a99f607f20
SHA1

afd3260767864121001edc729d0892c9c4905949
SHA256

2d6c0e0739caa8fb53bf16ecbd9f6cf19b7ab380480f3b72bac5d0cb5833fc17
SHA512

870272341a34516980af64721e25f9395281fc5a6b8f772095b1e5a02d1defd146b46944413cb114056f2408b3b3cdb278805bb0e89d4d9b762a18d3e259ca51
SSDEEP

3072:XlOcumc7pFeqjQu/LGwnRoak/PWiud3uWHWABIippBC:1OCc3eqjawnRNk/PWiuvBRppBC

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
2504	yzgwzlh.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\PROGRA~3\Mozilla\yzgwzlh.exe	NEAS.a55c29117ae89e88594821a99f607f20.exe
File created	C:\PROGRA~3\Mozilla\jhnnyvm.dll	yzgwzlh.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2636	NEAS.a55c29117ae89e88594821a99f607f20.exe
2504	yzgwzlh.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3008 wrote to memory of 2504	3008	taskeng.exe	28
PID 3008 wrote to memory of 2504	3008	taskeng.exe	28
PID 3008 wrote to memory of 2504	3008	taskeng.exe	28
PID 3008 wrote to memory of 2504	3008	taskeng.exe	28

C:\Users\Admin\AppData\Local\Temp\NEAS.a55c29117ae89e88594821a99f607f20.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.a55c29117ae89e88594821a99f607f20.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of UnmapMainImage
PID:2636

C:\Windows\system32\taskeng.exe
taskeng.exe {834D0D08-511E-41A2-B0C4-29E1CBEC3FF9} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:3008
- 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:2504

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
220KB

MD5
e0c312ea6b499aaa54840aed73cf3d1b

SHA1
a3ce550a965643be0d44c54837b944f9540d4e95

SHA256
c0ce76e018cc5202c8f712fd5d2e8347200d13205c4a4f65329cf02505e4fc82

SHA512
88216a78275b0b2a4020f63b3ecd6aacbd68d77f2573f010cca3571f494d152e200d2bb13f1d72c846abe37e935cfe26eb462460487e984bcc3ea4333db47aa1

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

Filesize
220KB

MD5
e0c312ea6b499aaa54840aed73cf3d1b

SHA1
a3ce550a965643be0d44c54837b944f9540d4e95

SHA256
c0ce76e018cc5202c8f712fd5d2e8347200d13205c4a4f65329cf02505e4fc82

SHA512
88216a78275b0b2a4020f63b3ecd6aacbd68d77f2573f010cca3571f494d152e200d2bb13f1d72c846abe37e935cfe26eb462460487e984bcc3ea4333db47aa1

Download Submit
memory/2504-8-0x00000000008C0000-0x000000000091B000-memory.dmp

Filesize
364KB

Download
memory/2504-9-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2504-11-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2504-12-0x00000000008C0000-0x000000000091B000-memory.dmp

Filesize
364KB

Download
memory/2636-1-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2636-2-0x0000000000260000-0x00000000002BB000-memory.dmp

Filesize
364KB

Download
memory/2636-0-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2636-4-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2636-5-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download