573990441bbafc2e25847db70dc53c595aad061da4f684c71b33e4d3778b02e3

Analysis

max time kernel
143s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
31/12/2023, 06:03

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2b0ed275cadb2755f470a82a57a0cda9.exe
Size

14KB
MD5

2b0ed275cadb2755f470a82a57a0cda9
SHA1

3d259dcb648621ad816979f62e552c21b5bce2f7
SHA256

573990441bbafc2e25847db70dc53c595aad061da4f684c71b33e4d3778b02e3
SHA512

79f72d1485e8b42d6ebdf31815bfa67ebc6f4393a444de7d56edaf380d92f81deed4c33a905157b7d4dbbee0ac23b833d563f72b2430b3d94554f3fbff00bebe
SSDEEP

384:88IPo7WiuU5adrEXgBswGVSGo44Q2KQGwOYekIYPmady2dWGmB8AB:88IPouU4SwSBVSG9gpISlyNG2

Score

10^/10

persistence

Malware Config

Signatures

Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\dispexcb.dll = "{76D44356-B494-443a-BEDC-AA68DE4255E6}"	2b0ed275cadb2755f470a82a57a0cda9.exe

Loads dropped DLL 1 IoCs

pid	Process
1156	2b0ed275cadb2755f470a82a57a0cda9.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\dispexcb.nls	2b0ed275cadb2755f470a82a57a0cda9.exe
File created	C:\Windows\SysWOW64\dispexcb.tmp	2b0ed275cadb2755f470a82a57a0cda9.exe
File opened for modification	C:\Windows\SysWOW64\dispexcb.tmp	2b0ed275cadb2755f470a82a57a0cda9.exe

Modifies registry class 4 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{76D44356-B494-443a-BEDC-AA68DE4255E6}\InProcServer32\ThreadingModel = "Apartment"	2b0ed275cadb2755f470a82a57a0cda9.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{76D44356-B494-443a-BEDC-AA68DE4255E6}	2b0ed275cadb2755f470a82a57a0cda9.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{76D44356-B494-443a-BEDC-AA68DE4255E6}\InProcServer32	2b0ed275cadb2755f470a82a57a0cda9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{76D44356-B494-443a-BEDC-AA68DE4255E6}\InProcServer32\ = "C:\\Windows\\SysWow64\\dispexcb.dll"	2b0ed275cadb2755f470a82a57a0cda9.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1156	2b0ed275cadb2755f470a82a57a0cda9.exe
1156	2b0ed275cadb2755f470a82a57a0cda9.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1156	2b0ed275cadb2755f470a82a57a0cda9.exe
1156	2b0ed275cadb2755f470a82a57a0cda9.exe
1156	2b0ed275cadb2755f470a82a57a0cda9.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1156 wrote to memory of 3956	1156	2b0ed275cadb2755f470a82a57a0cda9.exe	99
PID 1156 wrote to memory of 3956	1156	2b0ed275cadb2755f470a82a57a0cda9.exe	99
PID 1156 wrote to memory of 3956	1156	2b0ed275cadb2755f470a82a57a0cda9.exe	99

C:\Users\Admin\AppData\Local\Temp\2b0ed275cadb2755f470a82a57a0cda9.exe
"C:\Users\Admin\AppData\Local\Temp\2b0ed275cadb2755f470a82a57a0cda9.exe"
1⤵
- Adds autorun key to be loaded by Explorer.exe on startup
- Loads dropped DLL
- Drops file in System32 directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1156
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\BF68.tmp.bat
  2⤵
  PID:3956

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:\Users\Admin\AppData\Local\Temp\BF68.tmp.bat

Filesize
179B

MD5
9f30bdfe5dad289bf6cd4d594dedb251

SHA1
c463df964de84e76c905ad5360382467e018a762

SHA256
82abc6afaa9867d06f9c00b6f81337118453392777f283d22ea6ee3e99808677

SHA512
883ce2e31575cf4b699859060ff505079446855524983994064b66b9f402b9ecefaf5aa93073ed85b0da9eaccdf3ccf437ec0aeaec42df064a0fbd065198f6d5

Download Submit
C:\Windows\SysWOW64\dispexcb.dll

Filesize
2.4MB

MD5
4e23f0f1d21a1e6249c12c901b1bf305

SHA1
b9aa358fd62cecab68fcb219f1867e14623b8581

SHA256
938c7524a175c86ee3a33573ef95c038bfa912219fa57dd5013c75f65f2cc9a6

SHA512
4233b906bc538d8311f6dae5de8578a9ae60e3374079651f84affe658e4c7514b9258a35e2dea529d48835ea89ddc08a01deda548d9c1a4ba44a7c912fa44470

Download Submit
C:\Windows\SysWOW64\dispexcb.tmp

Filesize
2.3MB

MD5
dd4a3764dc4f76f9d37dcfc05cbb5c58

SHA1
6c66d5490f438ca86ebee1706624fbf62d0f599f

SHA256
57a29b5f6c47b90610b82952ccb40156be69207cdd250fbff0c4debb9b5cc603

SHA512
e40c05b82a85c0148fd0810d3ea8456eca6a2d6d24559492ac8643e01377fff13ba087088099d7e6f187f721237020d3e520ee8d6e346649eca5124cfb925ef0

Download Submit
memory/1156-17-0x0000000010000000-0x000000001006C000-memory.dmp

Filesize
432KB

Download
memory/1156-21-0x0000000010000000-0x000000001006C000-memory.dmp

Filesize
432KB

Download