cc4491b61a6f7fb63463401b464a925ca78470fc2bbd3182856dce1c4f8f3fed

Analysis

max time kernel
118s
max time network
124s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09-04-2024 22:34

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General

Target

4fe224c5f89a6c8af79cad37e64b0569.exe
Size

287KB
MD5

4fe224c5f89a6c8af79cad37e64b0569
SHA1

7d175280212359df894b64f871313525840fab87
SHA256

cc4491b61a6f7fb63463401b464a925ca78470fc2bbd3182856dce1c4f8f3fed
SHA512

6e7a58abf18ca6e94d38740e6d5a5ec61c2608f0673918f1a176e3fcdfaedc00d1d498809f14f0b80bddbe23f0ccd81c9a6a6bc96a21bea06f7ac961ba109205
SSDEEP

6144:sOw14xM/grDmLuyau/CSOTag98aPRwI4A2SbGqJC:UnokuyJqhGaOA2SS

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
2924	tbckyxk.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\PROGRA~3\Mozilla\tbckyxk.exe	4fe224c5f89a6c8af79cad37e64b0569.exe
File created	C:\PROGRA~3\Mozilla\newtrln.dll	tbckyxk.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1336	4fe224c5f89a6c8af79cad37e64b0569.exe
2924	tbckyxk.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2088 wrote to memory of 2924	2088	taskeng.exe	29
PID 2088 wrote to memory of 2924	2088	taskeng.exe	29
PID 2088 wrote to memory of 2924	2088	taskeng.exe	29
PID 2088 wrote to memory of 2924	2088	taskeng.exe	29

C:\Users\Admin\AppData\Local\Temp\4fe224c5f89a6c8af79cad37e64b0569.exe
"C:\Users\Admin\AppData\Local\Temp\4fe224c5f89a6c8af79cad37e64b0569.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of UnmapMainImage
PID:1336

C:\Windows\system32\taskeng.exe
taskeng.exe {EE2B83DA-3697-42F1-8062-793C50FE1C09} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:2088
- C:\PROGRA~3\Mozilla\tbckyxk.exe
  C:\PROGRA~3\Mozilla\tbckyxk.exe -gqpcbye
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Suspicious use of UnmapMainImage
  PID:2924

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\tbckyxk.exe

Filesize
287KB

MD5
3459a8fdfffc9f3ab5778a52e3e01085

SHA1
a520c228c99e5b67beac8aaf01de952fc1fde6ac

SHA256
5ba433585976b65e455820a5affe7557fab23779477cee27e5e7cda80ade5de1

SHA512
5efbeb180a834ed22aaa211a59504a8398a1b07be5db0e0a94f1b2ca77a29cc004f35ce305bcae2239c3a2de23135cd2ee714b05e40abd5d55270e0ea9a7cc00

Download Submit
memory/1336-0-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/1336-1-0x0000000000270000-0x00000000002CB000-memory.dmp

Filesize
364KB

Download
memory/1336-2-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/1336-4-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/1336-5-0x0000000000270000-0x00000000002CB000-memory.dmp

Filesize
364KB

Download
memory/2924-8-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2924-9-0x0000000000460000-0x00000000004BB000-memory.dmp

Filesize
364KB

Download
memory/2924-10-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2924-12-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download