081f0222dd521deca66d5d8398aa17101349f4af91a38f2cd4217f8cf87dfb6a

Analysis

max time kernel
121s
max time network
124s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
16-11-2023 10:24

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General

Target

NEAS.ff3378708a010d6e6c635e2348dc9d20.exe
Size

231KB
MD5

ff3378708a010d6e6c635e2348dc9d20
SHA1

9ab038c8247d2a80471447b97fce853206b40c52
SHA256

081f0222dd521deca66d5d8398aa17101349f4af91a38f2cd4217f8cf87dfb6a
SHA512

2ffdbafb5e1983f52d650be7f8d95432c4d8b642b8ad3a781e928b3f1745116aaeb3029cef0381d0eaeedde33680f86b6277ffffac9a4b616f17fa81098e4ba0
SSDEEP

6144:heBcsrOU6kL38n3mYZOONgMmTyuxCBcTVZ:h1UnL3ymDxeSTVZ

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
2640	zimfrwc.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\PROGRA~3\Mozilla\zimfrwc.exe	NEAS.ff3378708a010d6e6c635e2348dc9d20.exe
File created	C:\PROGRA~3\Mozilla\pjqvbbf.dll	zimfrwc.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2468	NEAS.ff3378708a010d6e6c635e2348dc9d20.exe
2640	zimfrwc.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2360 wrote to memory of 2640	2360	taskeng.exe	29
PID 2360 wrote to memory of 2640	2360	taskeng.exe	29
PID 2360 wrote to memory of 2640	2360	taskeng.exe	29
PID 2360 wrote to memory of 2640	2360	taskeng.exe	29

C:\Users\Admin\AppData\Local\Temp\NEAS.ff3378708a010d6e6c635e2348dc9d20.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.ff3378708a010d6e6c635e2348dc9d20.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of UnmapMainImage
PID:2468

C:\Windows\system32\taskeng.exe
taskeng.exe {4045065F-AE73-49AC-886C-E44F51DA2606} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:2360
- C:\PROGRA~3\Mozilla\zimfrwc.exe
  C:\PROGRA~3\Mozilla\zimfrwc.exe -gtjzibe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Suspicious use of UnmapMainImage
  PID:2640

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\zimfrwc.exe

Filesize
231KB

MD5
f41d4c6a92b891dd7b89f14fcda91b45

SHA1
a6751256abae0f28355c47ea837008d29fa5fe13

SHA256
48d2428cbe28e0ec54dbe7f31be878010a6a992c646242eaa20300733f386de9

SHA512
a4d99c87487d7b5d1c145ccd94cb4050e4c216a6c4203d2e54937c17d67581aaa2695c42a9a1cbe2adda6e71d56349a949ab5aaf694a8341ce16c8b109689a4d

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

Filesize
231KB

MD5
f41d4c6a92b891dd7b89f14fcda91b45

SHA1
a6751256abae0f28355c47ea837008d29fa5fe13

SHA256
48d2428cbe28e0ec54dbe7f31be878010a6a992c646242eaa20300733f386de9

SHA512
a4d99c87487d7b5d1c145ccd94cb4050e4c216a6c4203d2e54937c17d67581aaa2695c42a9a1cbe2adda6e71d56349a949ab5aaf694a8341ce16c8b109689a4d

Download Submit
memory/2468-0-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2468-2-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2468-1-0x0000000000260000-0x00000000002BB000-memory.dmp

Filesize
364KB

Download
memory/2468-4-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2640-7-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2640-8-0x0000000000480000-0x00000000004DB000-memory.dmp

Filesize
364KB

Download
memory/2640-9-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2640-11-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2640-12-0x0000000000480000-0x00000000004DB000-memory.dmp

Filesize
364KB

Download