cd4da35f3c8a5239a5d174ddb7ff1711229383ae44eb8629267a7c4aed6e80f4

Analysis

max time kernel
120s
max time network
120s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
09-04-2024 02:32

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

cd4da35f3c8a5239a5d174ddb7ff1711229383ae44eb8629267a7c4aed6e80f4.exe
Size

276KB
MD5

28c6fbef2417d9e2cf58373001388e43
SHA1

98020a0e655d8596fe70c9f8b83b2f2adef88a7b
SHA256

cd4da35f3c8a5239a5d174ddb7ff1711229383ae44eb8629267a7c4aed6e80f4
SHA512

ece962ba6097607d8f76a20ba138550385bf7af1dc325dccb82125ece7e4f0a2a085976f091028d7cf4387b66a4511d891bc4b87b550e7ed3d2a82f27e00a9ea
SSDEEP

6144:yFpiTSfDhpOQAYg718kVFRCHplF6UoLGqpXwx:FTSfDh7AL18UwJbhWXwx

Score

9^/10

persistence

Malware Config

Signatures

Detects executables packed with ASPack 3 IoCs

resource	yara_rule
behavioral1/memory/2340-0-0x0000000000400000-0x0000000000469000-memory.dmp	INDICATOR_EXE_Packed_ASPack
behavioral1/files/0x000c000000015cd2-5.dat	INDICATOR_EXE_Packed_ASPack
behavioral1/memory/2476-7-0x0000000000400000-0x0000000000469000-memory.dmp	INDICATOR_EXE_Packed_ASPack

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112

Executes dropped EXE 1 IoCs

pid	Process
2476	wrvdfyg.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\PROGRA~3\Mozilla\wrvdfyg.exe	cd4da35f3c8a5239a5d174ddb7ff1711229383ae44eb8629267a7c4aed6e80f4.exe
File created	C:\PROGRA~3\Mozilla\klztrnd.dll	wrvdfyg.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2340	cd4da35f3c8a5239a5d174ddb7ff1711229383ae44eb8629267a7c4aed6e80f4.exe
2476	wrvdfyg.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1788 wrote to memory of 2476	1788	taskeng.exe	30
PID 1788 wrote to memory of 2476	1788	taskeng.exe	30
PID 1788 wrote to memory of 2476	1788	taskeng.exe	30
PID 1788 wrote to memory of 2476	1788	taskeng.exe	30

C:\Users\Admin\AppData\Local\Temp\cd4da35f3c8a5239a5d174ddb7ff1711229383ae44eb8629267a7c4aed6e80f4.exe
"C:\Users\Admin\AppData\Local\Temp\cd4da35f3c8a5239a5d174ddb7ff1711229383ae44eb8629267a7c4aed6e80f4.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of UnmapMainImage
PID:2340

C:\Windows\system32\taskeng.exe
taskeng.exe {B73C5307-F72E-41E2-B12A-B1D45D7A92FC} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:1788
- C:\PROGRA~3\Mozilla\wrvdfyg.exe
  C:\PROGRA~3\Mozilla\wrvdfyg.exe -hzyjzia
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Suspicious use of UnmapMainImage
  PID:2476

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

Loading Replay Monitor...

Downloads

C:\PROGRA~3\Mozilla\wrvdfyg.exe

Filesize
276KB

MD5
33d3d701c4c4e846d93860bf1d22403e

SHA1
528b739abe00763996c09b5c93f30c4548ffe6dc

SHA256
bd53285a240d167deb3286deaff4e3788fc49f51faa7bc2db6f1672a8d7ba17f

SHA512
b9a9173f3606f7fed7333f57850e6c8456d4f703ced533d3b19f03fb7f1a7d21d02b867c4668f9983d903857255151fbcf5802a056893cba599fb03751278299

Download Submit
memory/2340-0-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2340-2-0x0000000000310000-0x000000000036C000-memory.dmp

Filesize
368KB

Download
memory/2340-1-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2340-4-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2476-7-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2476-8-0x0000000000870000-0x00000000008CC000-memory.dmp

Filesize
368KB

Download
memory/2476-9-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2476-11-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2476-12-0x0000000000870000-0x00000000008CC000-memory.dmp

Filesize
368KB

Download