eb4e5b39ab9c64959e19832e9479f81eeb8db636a812f70d23ac380a4799abbe

Analysis

max time kernel
120s
max time network
126s
platform
windows7_x64
resource
win7-20231023-en
resource tags

arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
submitted
31/10/2023, 19:25

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General

Target

NEAS.42398a81ff5a8a7fe5036545a1583980_JC.exe
Size

149KB
MD5

42398a81ff5a8a7fe5036545a1583980
SHA1

5c2bda50d5a73f2b389fdcf16fb3652529f36b87
SHA256

eb4e5b39ab9c64959e19832e9479f81eeb8db636a812f70d23ac380a4799abbe
SHA512

edb2c65cb4899d57a1be8a9d4826a0a937dc2b105e9aeb80e0cd15d23b90dd6f94c93aade331f4adcb6fa2b9bb2fff862c1c6208f8ec47a44f7d87d09a1b1d67
SSDEEP

3072:J/BH9p/3K+AEkzgXrGqJM4qd3bGjhkqsXb6:JR9pTAEkz6rGq4Bbq2u

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
2732	wwljcul.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\PROGRA~3\Mozilla\wwljcul.exe	NEAS.42398a81ff5a8a7fe5036545a1583980_JC.exe
File created	C:\PROGRA~3\Mozilla\sdwojsn.dll	wwljcul.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2616 wrote to memory of 2732	2616	taskeng.exe	29
PID 2616 wrote to memory of 2732	2616	taskeng.exe	29
PID 2616 wrote to memory of 2732	2616	taskeng.exe	29
PID 2616 wrote to memory of 2732	2616	taskeng.exe	29

C:\Users\Admin\AppData\Local\Temp\NEAS.42398a81ff5a8a7fe5036545a1583980_JC.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.42398a81ff5a8a7fe5036545a1583980_JC.exe"
1⤵
- Drops file in Program Files directory
PID:1952

C:\Windows\system32\taskeng.exe
taskeng.exe {41770042-41CA-465D-BF44-209EE30900A4} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:2616
- C:\PROGRA~3\Mozilla\wwljcul.exe
  C:\PROGRA~3\Mozilla\wwljcul.exe -anxczaj
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  PID:2732

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
149KB

MD5
5979317c3a4d9caf52235ed9405f2ca6

SHA1
a0a37b89360ddf1da62cfa5ce1721d979878ff7e

SHA256
215c508d8432d487ba3f87264e28fa9e0b1b2f8cdfb7019f60b2f83f762f020b

SHA512
d87a10177768e42de377a9b29d6bf67151ab739a76ecafcbe085e9bb89a881b03f5d54f1c34c42b3c67429b5e0f6f7eb2ee1e2bde9fa0bed5ffa539dd1e83720

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

Filesize
149KB

MD5
5979317c3a4d9caf52235ed9405f2ca6

SHA1
a0a37b89360ddf1da62cfa5ce1721d979878ff7e

SHA256
215c508d8432d487ba3f87264e28fa9e0b1b2f8cdfb7019f60b2f83f762f020b

SHA512
d87a10177768e42de377a9b29d6bf67151ab739a76ecafcbe085e9bb89a881b03f5d54f1c34c42b3c67429b5e0f6f7eb2ee1e2bde9fa0bed5ffa539dd1e83720

Download Submit
memory/1952-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1952-1-0x00000000001B0000-0x000000000020B000-memory.dmp

Filesize
364KB

Download
memory/1952-7-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2732-10-0x0000000000310000-0x000000000036B000-memory.dmp

Filesize
364KB

Download
memory/2732-16-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download