4a1aa0017edb8629ae7cbea9564ee6490ef4de529023a494f1f70baebf829059

Analysis

max time kernel
118s
max time network
121s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
05-11-2023 16:03

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General

Target

NEAS.5d02fa5b7537f340b1a8eaff368476d0_JC.exe
Size

128KB
MD5

5d02fa5b7537f340b1a8eaff368476d0
SHA1

a88bb341d65e4f28b99e78145439e8c77d14e8a7
SHA256

4a1aa0017edb8629ae7cbea9564ee6490ef4de529023a494f1f70baebf829059
SHA512

08e74db183a5dfc8642042c7bd5830062b7975b61a56bac91b10ad650d842e5dc86171c5b2466a5779dbb3c93bba68d27382ac488fe6745a907027d9259d04eb
SSDEEP

3072:Te41eh3m0CYa8iZjsm6HB3p36o2fR39j+85N2dS:6Ph3wYpiZjn6HbZ2Z39j5GS

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
2744	zimfrwc.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\PROGRA~3\Mozilla\zimfrwc.exe	NEAS.5d02fa5b7537f340b1a8eaff368476d0_JC.exe
File created	C:\PROGRA~3\Mozilla\pjqvbbf.dll	zimfrwc.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2232 wrote to memory of 2744	2232	taskeng.exe	29
PID 2232 wrote to memory of 2744	2232	taskeng.exe	29
PID 2232 wrote to memory of 2744	2232	taskeng.exe	29
PID 2232 wrote to memory of 2744	2232	taskeng.exe	29

C:\Users\Admin\AppData\Local\Temp\NEAS.5d02fa5b7537f340b1a8eaff368476d0_JC.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.5d02fa5b7537f340b1a8eaff368476d0_JC.exe"
1⤵
- Drops file in Program Files directory
PID:1740

C:\Windows\system32\taskeng.exe
taskeng.exe {166940A0-5921-4F42-B13F-3D002EAA53C6} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:2232
- C:\PROGRA~3\Mozilla\zimfrwc.exe
  C:\PROGRA~3\Mozilla\zimfrwc.exe -gtjzibe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  PID:2744

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
128KB

MD5
ec1ec1a7bde2c5cd7da4d18bd0e8023b

SHA1
4b5aa518bb64125fe703eac82d1ca9ed4f7a4415

SHA256
78905800440c03268ceb1bd530074e15bb8064d40b52fdf80f65167c9461d636

SHA512
8f1bd06515af69b69e9f59f83715a32d5f4b9a7de2ae3622e3c83e3f8c9f01c07ebe1a4d9eb7fac862a5e13f2cf2835bf455f2d92c48150f1db8a9af900f68eb

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

Filesize
128KB

MD5
ec1ec1a7bde2c5cd7da4d18bd0e8023b

SHA1
4b5aa518bb64125fe703eac82d1ca9ed4f7a4415

SHA256
78905800440c03268ceb1bd530074e15bb8064d40b52fdf80f65167c9461d636

SHA512
8f1bd06515af69b69e9f59f83715a32d5f4b9a7de2ae3622e3c83e3f8c9f01c07ebe1a4d9eb7fac862a5e13f2cf2835bf455f2d92c48150f1db8a9af900f68eb

Download Submit
memory/1740-0-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/1740-1-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/1740-3-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/1740-2-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/1740-7-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2744-10-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2744-11-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2744-12-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2744-16-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download