611fb4646d5f227808bca5826b2255d985297c9c490e2d2107b7b66839b6c9e1

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
19/04/2024, 22:10

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General

Target

611fb4646d5f227808bca5826b2255d985297c9c490e2d2107b7b66839b6c9e1.exe
Size

72KB
MD5

6b4271b45f74c069dd14b56f15ee6ca8
SHA1

71ad403e4380bee8bc204eae9876d933012b601b
SHA256

611fb4646d5f227808bca5826b2255d985297c9c490e2d2107b7b66839b6c9e1
SHA512

d7ffbdd8f4a096dfed4cbc68c173a2b0ae7653de41f127fddb2c9b420b2764f7463d2b24528bf55c8c17801151d72c50e4053ea436b40d1638f1535c0887399c
SSDEEP

1536:NDj2d6rnJbJnJBSX1nV1b1N1Il1k1YFI1x1J1MuEqx517Q/1T1Jzct01Nsqnl1Ru:FlnnJBSX1nV1b1N1Il1k1YFI1x1J1MuF

Score

7^/10

persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
3360	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
3360	microsofthelp.exe

Loads dropped DLL 1 IoCs

pid	Process
3360	microsofthelp.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-355664440-2199602304-1223909400-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	611fb4646d5f227808bca5826b2255d985297c9c490e2d2107b7b66839b6c9e1.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	611fb4646d5f227808bca5826b2255d985297c9c490e2d2107b7b66839b6c9e1.exe
File created	C:\Windows\HidePlugin.dll	microsofthelp.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3360	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3876 wrote to memory of 3360	3876	611fb4646d5f227808bca5826b2255d985297c9c490e2d2107b7b66839b6c9e1.exe	86
PID 3876 wrote to memory of 3360	3876	611fb4646d5f227808bca5826b2255d985297c9c490e2d2107b7b66839b6c9e1.exe	86
PID 3876 wrote to memory of 3360	3876	611fb4646d5f227808bca5826b2255d985297c9c490e2d2107b7b66839b6c9e1.exe	86

C:\Users\Admin\AppData\Local\Temp\611fb4646d5f227808bca5826b2255d985297c9c490e2d2107b7b66839b6c9e1.exe
"C:\Users\Admin\AppData\Local\Temp\611fb4646d5f227808bca5826b2255d985297c9c490e2d2107b7b66839b6c9e1.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:3876
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Windows directory
  - Suspicious use of SetWindowsHookEx
  PID:3360

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:\Windows\HidePlugin.dll

Filesize
5KB

MD5
4c0b9970f96300dfa1f45afc7539d35f

SHA1
ebbb4ed2003662d78d1f32e7b6da1b6f504ae711

SHA256
4e96660cc8be7171a79755a20860366987547322b3a809e78c9850f14c242262

SHA512
579f8787b52bf62a0296d8a24753263201fbc84abec5927033e3c97576f965ead0f8422acd3f7af1345b0df0001b0cd68fa971062e21269f6940cf3e1508ca88

Download Submit
C:\Windows\microsofthelp.exe

Filesize
72KB

MD5
686972107a58563a40146f53e464e9a7

SHA1
c8661619502f20e2ffba6a51af07888784281eb0

SHA256
9d5b390ef9cb7beb7c8ff64353a0a86bdbb5f20e50684195eea7167872da1d57

SHA512
89e372f91e60bf22a17bc491b268cec5ef2b5361984f38b6b98a32b9df8be5786c5bfac8a20a2961e11c3b0bcbcac441b462064c468e619eb9170f23b2f9214e

Download Submit
memory/3360-6-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/3360-11-0x0000000010000000-0x0000000010005000-memory.dmp

Filesize
20KB

Download
memory/3360-12-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/3876-0-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/3876-4-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download

Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads