eaf16c83903d08dec85e36e209ecce8d7f42336ba3ee4cc7ac7cbe3babb58584

Analysis

max time kernel
149s
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
25-12-2023 02:31

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General

Target

0010d605a2b60643537771dd074b5c2a.exe
Size

41KB
MD5

0010d605a2b60643537771dd074b5c2a
SHA1

5708a81e0913b25cdb54533b7dc2624d7f406970
SHA256

eaf16c83903d08dec85e36e209ecce8d7f42336ba3ee4cc7ac7cbe3babb58584
SHA512

9b6affd23630e1c780fb153287ed759e2b5ece115f09503590b2e22a3f7ad2254b40b4011eb8719392b99ca81b4e366f972382ddf527ec88ec7afdb77fcc13d8
SSDEEP

768:mizpD3PghHbXpP9+3A/Cmmco1eaCxH9l+8cDqIKn5iqJ87Mi:mizpDgvPUQK/coB69l5KO5iqJcMi

Score

7^/10

persistence

Malware Config

Signatures

Loads dropped DLL 2 IoCs

pid	Process
1648	rundll32.exe
2116	rundll32.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-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Gnotakokoxevo = "rundll32.exe \"C:\\Users\\Admin\\AppData\\Local\\tfbcrc32.dll\",Startup"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
1648	rundll32.exe
1648	rundll32.exe
1648	rundll32.exe
1648	rundll32.exe
1648	rundll32.exe
1648	rundll32.exe
1648	rundll32.exe
1648	rundll32.exe
1648	rundll32.exe
1648	rundll32.exe
1648	rundll32.exe
1648	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3684 wrote to memory of 1648	3684	0010d605a2b60643537771dd074b5c2a.exe	34
PID 3684 wrote to memory of 1648	3684	0010d605a2b60643537771dd074b5c2a.exe	34
PID 3684 wrote to memory of 1648	3684	0010d605a2b60643537771dd074b5c2a.exe	34
PID 1648 wrote to memory of 2116	1648	rundll32.exe	99
PID 1648 wrote to memory of 2116	1648	rundll32.exe	99
PID 1648 wrote to memory of 2116	1648	rundll32.exe	99

C:\Users\Admin\AppData\Local\Temp\0010d605a2b60643537771dd074b5c2a.exe
"C:\Users\Admin\AppData\Local\Temp\0010d605a2b60643537771dd074b5c2a.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3684
- C:\Windows\SysWOW64\rundll32.exe
  rundll32 "C:\Users\Admin\AppData\Local\tfbcrc32.dll",Startup
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1648
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe "C:\Users\Admin\AppData\Local\tfbcrc32.dll",iep
    3⤵
    - Loads dropped DLL
    PID:2116

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:\Users\Admin\AppData\Local\tfbcrc32.dll

Filesize
41KB

MD5
abfe5f228c93cdb44125500b4427fa0d

SHA1
fc0d4f60ee8e129f9b3f08ba1bcd2470050ad83b

SHA256
4a68a858b7757b42de26ff102f753f397edd7de13c19f71c0208d26e42ffa3ae

SHA512
9c14c94fd283b07b24dc7e548ac6164d25ff116aa0696317dd19c797ff3f2fb7bc42909682316d77718baa215b285dd327d5ec0528752871b8896d2dddda7801

Download Submit
memory/1648-13-0x0000000010000000-0x000000001000D000-memory.dmp

Filesize
52KB

Download
memory/1648-16-0x00000000028A0000-0x00000000028B0000-memory.dmp

Filesize
64KB

Download
memory/1648-25-0x0000000010000000-0x000000001000D000-memory.dmp

Filesize
52KB

Download
memory/1648-20-0x0000000010000000-0x000000001000D000-memory.dmp

Filesize
52KB

Download
memory/1648-11-0x00000000028A0000-0x00000000028B0000-memory.dmp

Filesize
64KB

Download
memory/1648-12-0x00000000028A0000-0x00000000028B0000-memory.dmp

Filesize
64KB

Download
memory/1648-10-0x0000000010000000-0x000000001000D000-memory.dmp

Filesize
52KB

Download
memory/1648-9-0x0000000010000000-0x000000001000D000-memory.dmp

Filesize
52KB

Download
memory/1648-15-0x00000000028A0000-0x00000000028B0000-memory.dmp

Filesize
64KB

Download
memory/2116-28-0x0000000001510000-0x0000000001520000-memory.dmp

Filesize
64KB

Download
memory/2116-22-0x0000000001510000-0x0000000001520000-memory.dmp

Filesize
64KB

Download
memory/2116-21-0x0000000001510000-0x0000000001520000-memory.dmp

Filesize
64KB

Download
memory/2116-24-0x0000000010000000-0x000000001000D000-memory.dmp

Filesize
52KB

Download
memory/2116-27-0x0000000001510000-0x0000000001520000-memory.dmp

Filesize
64KB

Download
memory/3684-1-0x0000000000AD0000-0x0000000000AE0000-memory.dmp

Filesize
64KB

Download
memory/3684-3-0x0000000010000000-0x000000001000D000-memory.dmp

Filesize
52KB

Download
memory/3684-7-0x0000000010000000-0x000000001000D000-memory.dmp

Filesize
52KB

Download
memory/3684-2-0x0000000000AD0000-0x0000000000AE0000-memory.dmp

Filesize
64KB

Download
memory/3684-0-0x0000000010000000-0x000000001000D000-memory.dmp

Filesize
52KB

Download