caa0e32b9d6f26611314a5822bb7da998e0ddedaefa1be16a5909f0b41c275fc

Analysis

max time kernel
118s
max time network
137s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
04/11/2023, 14:14

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General

Target

NEAS.5e992bcb2a6eb92a9f3b11a6bf11d320.exe
Size

181KB
MD5

5e992bcb2a6eb92a9f3b11a6bf11d320
SHA1

d717a4c12f1aa1cf4691f4951bbeca80b95e7163
SHA256

caa0e32b9d6f26611314a5822bb7da998e0ddedaefa1be16a5909f0b41c275fc
SHA512

b9b34e8d8767b8f6f73677e1b0286891a6390aa43fd0f1a9fca5d1d02f5ecd9e38b987a5179dceeb809d73d56e6eb4256675ca3c265746ac0f333288d4761230
SSDEEP

3072:YG9WdoX/14GwN+iHhK/xYHeAvG4HTQSKsTRbjpu5kS6AF+mheuxRO0Vrb:D9WG14GWx2xYnIstbjgHESeuz5b

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
2544	zimfrwc.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\PROGRA~3\Mozilla\zimfrwc.exe	NEAS.5e992bcb2a6eb92a9f3b11a6bf11d320.exe
File created	C:\PROGRA~3\Mozilla\pjqvbbf.dll	zimfrwc.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2644 wrote to memory of 2544	2644	taskeng.exe	30
PID 2644 wrote to memory of 2544	2644	taskeng.exe	30
PID 2644 wrote to memory of 2544	2644	taskeng.exe	30
PID 2644 wrote to memory of 2544	2644	taskeng.exe	30

C:\Users\Admin\AppData\Local\Temp\NEAS.5e992bcb2a6eb92a9f3b11a6bf11d320.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.5e992bcb2a6eb92a9f3b11a6bf11d320.exe"
1⤵
- Drops file in Program Files directory
PID:1672

C:\Windows\system32\taskeng.exe
taskeng.exe {4801DE90-C58B-4AF5-A5C0-82017C273EF9} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:2644
- C:\PROGRA~3\Mozilla\zimfrwc.exe
  C:\PROGRA~3\Mozilla\zimfrwc.exe -gtjzibe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  PID:2544

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
181KB

MD5
2ba551c2a9a66874b72b871277dffe09

SHA1
f874d9d1ee68b0f03ce452580852fbcf181e4d82

SHA256
2ef0aecd9ec0dd60c37f8cd8a58cf2b95bc05dae541447f323ad402977200eb5

SHA512
b473947bf23bbc31bdb8dbe1895e4e440be27dc5a384bacf2da72485de95ff2f326af2ba968d80061e73498217c94d282877fe11b253071365a6fd401eb19813

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

Filesize
181KB

MD5
2ba551c2a9a66874b72b871277dffe09

SHA1
f874d9d1ee68b0f03ce452580852fbcf181e4d82

SHA256
2ef0aecd9ec0dd60c37f8cd8a58cf2b95bc05dae541447f323ad402977200eb5

SHA512
b473947bf23bbc31bdb8dbe1895e4e440be27dc5a384bacf2da72485de95ff2f326af2ba968d80061e73498217c94d282877fe11b253071365a6fd401eb19813

Download Submit
memory/1672-0-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1672-1-0x0000000000220000-0x000000000027B000-memory.dmp

Filesize
364KB

Download
memory/1672-7-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/2544-10-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/2544-11-0x00000000002E0000-0x000000000033B000-memory.dmp

Filesize
364KB

Download
memory/2544-17-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download