5f60f13044bcadb3f399ace462c43293f6d407529111972a680a26d7da2f5f9b

General

Target

DNF四季10.25A.exe
Size

852KB
MD5

f70c1e265fac675c240454c8d7758562
SHA1

a4a4f7d54122d643498f851933fb3710139b2ae7
SHA256

bc9346d9bdeaeb770f24f434dd735a19ac277376e5539e7007df001f0bb92453
SHA512

0ba3d3c955bfc4fb8a3d3f147a6e6efb1beefd197877bc82b57de5f36ff6c51ed00c50834e0bc90157c07ea733c3deb6d8ade7b6c09c7789421dd736a090ee9c
SSDEEP

24576:0Tiszm0kMoFSds2xbXdwaD3HklNFK9aPg9qsGXyB5eApk+:0E0kjFSds2xbXdw43HqFK9aP+9G1Ab

Score

8^/10

upx vmprotect

Malware Config

Signatures

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral1/memory/1236-59-0x0000000000750000-0x00000000007C2000-memory.dmp	upx

VMProtect packed file 3 IoCs

Detects executables packed with VMProtect commercial packer.

vmprotect

Processes:

resource	yara_rule
behavioral1/memory/1236-55-0x0000000000400000-0x000000000068C000-memory.dmp	vmprotect
behavioral1/memory/1236-58-0x0000000000400000-0x000000000068C000-memory.dmp	vmprotect
behavioral1/memory/1236-70-0x0000000000400000-0x000000000068C000-memory.dmp	vmprotect

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Kills process with taskkill 9 IoCs

evasion

Processes:

taskkill.exetaskkill.exetaskkill.exetaskkill.exetaskkill.exetaskkill.exetaskkill.exetaskkill.exetaskkill.exe

pid	process
676	taskkill.exe
1972	taskkill.exe
1648	taskkill.exe
1284	taskkill.exe
1380	taskkill.exe
108	taskkill.exe
1912	taskkill.exe
652	taskkill.exe
576	taskkill.exe

Modifies Internet Explorer start page 1 TTPs 1 IoCs

stealer

Modify Registry

T1112

Processes:

DNF四季10.25A.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\Start Page = "http://www.2345.com/?ktt659189"	DNF四季10.25A.exe

Suspicious behavior: EnumeratesProcesses 19 IoCs

Processes:

DNF四季10.25A.exe

pid	process
1236	DNF四季10.25A.exe
1236	DNF四季10.25A.exe
1236	DNF四季10.25A.exe
1236	DNF四季10.25A.exe
1236	DNF四季10.25A.exe
1236	DNF四季10.25A.exe
1236	DNF四季10.25A.exe
1236	DNF四季10.25A.exe
1236	DNF四季10.25A.exe
1236	DNF四季10.25A.exe
1236	DNF四季10.25A.exe
1236	DNF四季10.25A.exe
1236	DNF四季10.25A.exe
1236	DNF四季10.25A.exe
1236	DNF四季10.25A.exe
1236	DNF四季10.25A.exe
1236	DNF四季10.25A.exe
1236	DNF四季10.25A.exe
1236	DNF四季10.25A.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

Processes:

DNF四季10.25A.exetaskkill.exetaskkill.exetaskkill.exetaskkill.exetaskkill.exetaskkill.exetaskkill.exetaskkill.exetaskkill.exe

description	pid	process
Token: SeDebugPrivilege	1236	DNF四季10.25A.exe
Token: SeDebugPrivilege	676	taskkill.exe
Token: SeDebugPrivilege	1912	taskkill.exe
Token: SeDebugPrivilege	108	taskkill.exe
Token: SeDebugPrivilege	652	taskkill.exe
Token: SeDebugPrivilege	1972	taskkill.exe
Token: SeDebugPrivilege	1284	taskkill.exe
Token: SeDebugPrivilege	1648	taskkill.exe
Token: SeDebugPrivilege	1380	taskkill.exe
Token: SeDebugPrivilege	576	taskkill.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

DNF四季10.25A.exe

pid process

1236 DNF四季10.25A.exe
1236 DNF四季10.25A.exe

Suspicious use of WriteProcessMemory 36 IoCs

Processes:

DNF四季10.25A.exe

description	pid	process	target process
PID 1236 wrote to memory of 576	1236	DNF四季10.25A.exe	taskkill.exe
PID 1236 wrote to memory of 576	1236	DNF四季10.25A.exe	taskkill.exe
PID 1236 wrote to memory of 576	1236	DNF四季10.25A.exe	taskkill.exe
PID 1236 wrote to memory of 576	1236	DNF四季10.25A.exe	taskkill.exe
PID 1236 wrote to memory of 1912	1236	DNF四季10.25A.exe	taskkill.exe
PID 1236 wrote to memory of 1912	1236	DNF四季10.25A.exe	taskkill.exe
PID 1236 wrote to memory of 1912	1236	DNF四季10.25A.exe	taskkill.exe
PID 1236 wrote to memory of 1912	1236	DNF四季10.25A.exe	taskkill.exe
PID 1236 wrote to memory of 652	1236	DNF四季10.25A.exe	taskkill.exe
PID 1236 wrote to memory of 652	1236	DNF四季10.25A.exe	taskkill.exe
PID 1236 wrote to memory of 652	1236	DNF四季10.25A.exe	taskkill.exe
PID 1236 wrote to memory of 652	1236	DNF四季10.25A.exe	taskkill.exe
PID 1236 wrote to memory of 676	1236	DNF四季10.25A.exe	taskkill.exe
PID 1236 wrote to memory of 676	1236	DNF四季10.25A.exe	taskkill.exe
PID 1236 wrote to memory of 676	1236	DNF四季10.25A.exe	taskkill.exe
PID 1236 wrote to memory of 676	1236	DNF四季10.25A.exe	taskkill.exe
PID 1236 wrote to memory of 1972	1236	DNF四季10.25A.exe	taskkill.exe
PID 1236 wrote to memory of 1972	1236	DNF四季10.25A.exe	taskkill.exe
PID 1236 wrote to memory of 1972	1236	DNF四季10.25A.exe	taskkill.exe
PID 1236 wrote to memory of 1972	1236	DNF四季10.25A.exe	taskkill.exe
PID 1236 wrote to memory of 1648	1236	DNF四季10.25A.exe	taskkill.exe
PID 1236 wrote to memory of 1648	1236	DNF四季10.25A.exe	taskkill.exe
PID 1236 wrote to memory of 1648	1236	DNF四季10.25A.exe	taskkill.exe
PID 1236 wrote to memory of 1648	1236	DNF四季10.25A.exe	taskkill.exe
PID 1236 wrote to memory of 1284	1236	DNF四季10.25A.exe	taskkill.exe
PID 1236 wrote to memory of 1284	1236	DNF四季10.25A.exe	taskkill.exe
PID 1236 wrote to memory of 1284	1236	DNF四季10.25A.exe	taskkill.exe
PID 1236 wrote to memory of 1284	1236	DNF四季10.25A.exe	taskkill.exe
PID 1236 wrote to memory of 1380	1236	DNF四季10.25A.exe	taskkill.exe
PID 1236 wrote to memory of 1380	1236	DNF四季10.25A.exe	taskkill.exe
PID 1236 wrote to memory of 1380	1236	DNF四季10.25A.exe	taskkill.exe
PID 1236 wrote to memory of 1380	1236	DNF四季10.25A.exe	taskkill.exe
PID 1236 wrote to memory of 108	1236	DNF四季10.25A.exe	taskkill.exe
PID 1236 wrote to memory of 108	1236	DNF四季10.25A.exe	taskkill.exe
PID 1236 wrote to memory of 108	1236	DNF四季10.25A.exe	taskkill.exe
PID 1236 wrote to memory of 108	1236	DNF四季10.25A.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\DNF四季10.25A.exe
"C:\Users\Admin\AppData\Local\Temp\DNF四季10.25A.exe"
1⤵
- Modifies Internet Explorer start page
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1236

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im TenSafe.exe_1
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:576

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im TenSafe.exe_2
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1912

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im TenSafe.exe_1.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:652

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im TenSafe.exe_2.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:676

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im TXPlatform.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1972

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im Tencentdl.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1648

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im TenSafe.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1284

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im DNFchina.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1380

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im Tencentdl.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:108

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/108-68-0x0000000000000000-mapping.dmp

Download
memory/576-60-0x0000000000000000-mapping.dmp

Download
memory/652-62-0x0000000000000000-mapping.dmp

Download
memory/676-63-0x0000000000000000-mapping.dmp

Download
memory/1236-59-0x0000000000750000-0x00000000007C2000-memory.dmp

Filesize
456KB

Download
memory/1236-54-0x0000000074FD1000-0x0000000074FD3000-memory.dmp

Filesize
8KB

Download
memory/1236-58-0x0000000000400000-0x000000000068C000-memory.dmp

Filesize
2.5MB

Download
memory/1236-55-0x0000000000400000-0x000000000068C000-memory.dmp

Filesize
2.5MB

Download
memory/1236-69-0x0000000000750000-0x00000000007C2000-memory.dmp

Filesize
456KB

Download
memory/1236-70-0x0000000000400000-0x000000000068C000-memory.dmp

Filesize
2.5MB

Download
memory/1284-66-0x0000000000000000-mapping.dmp

Download
memory/1380-67-0x0000000000000000-mapping.dmp

Download
memory/1648-65-0x0000000000000000-mapping.dmp

Download
memory/1912-61-0x0000000000000000-mapping.dmp

Download
memory/1972-64-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads