bb1af121502e40a549135b72f34ad49d11cfbfa49b5cbcf549777549087fe751

Analysis

max time kernel
114s
max time network
121s
platform
windows7_x64
resource
win7
submitted
02-08-2020 09:05

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General

Target

bb1af121502e40a549135b72f34ad49d11cfbfa49b5cbcf549777549087fe751.dll
Size

258KB
MD5

9070256c0531a143da6ee6697b5aa352
SHA1

54f313419abe2dd153b7d2e66f8270b2a459cd13
SHA256

bb1af121502e40a549135b72f34ad49d11cfbfa49b5cbcf549777549087fe751
SHA512

f9e22d2f730a699c4cde38b6bb35b16733864e17d3de109a667ebc3e8e057f6778ae5a62f597ffbde936cc8fc8b075814012890058364ee4a86ebb8649eeac40

Score

7^/10

persistence

Malware Config

Signatures

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

rundll32.exetaskhost.exe

description pid process

Token: SeDebugPrivilege 1124 rundll32.exe
Token: SeDebugPrivilege 1184 taskhost.exe
Token: SeDebugPrivilege 1184 taskhost.exe

description	pid	process
Token: SeDebugPrivilege	1124	rundll32.exe
Token: SeDebugPrivilege	1184	taskhost.exe
Token: SeDebugPrivilege	1184	taskhost.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1124 wrote to memory of 1184	1124	rundll32.exe	taskhost.exe
PID 1124 wrote to memory of 1184	1124	rundll32.exe	taskhost.exe
PID 1124 wrote to memory of 1184	1124	rundll32.exe	taskhost.exe

Deletes itself 1 IoCs

Processes:

taskhost.exe

pid process

1184 taskhost.exe

pid	process
1184	taskhost.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

taskhost.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run	taskhost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\Microsoft Internet Explorer = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Microsoft Internet Explorer.lnk"	taskhost.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

rundll32.exetaskhost.exe

pid process

1124 rundll32.exe
1184 taskhost.exe
1184 taskhost.exe

pid	process
1124	rundll32.exe
1184	taskhost.exe
1184	taskhost.exe

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Deletes itself
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
PID:1184

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bb1af121502e40a549135b72f34ad49d11cfbfa49b5cbcf549777549087fe751.dll,#1
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- Suspicious behavior: EnumeratesProcesses
PID:1124

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1184-0-0x0000000001DA0000-0x0000000001DE7000-memory.dmp

Filesize
284KB

Download
memory/1184-1-0x0000000001DA0000-0x0000000001DE7000-memory.dmp

Filesize
284KB

Download
memory/1184-2-0x0000000001DA0000-0x0000000001DE7000-memory.dmp

Filesize
284KB

Download
memory/1184-3-0x0000000001DA0000-0x0000000001DE7000-memory.dmp

Filesize
284KB

Download
memory/1184-4-0x0000000001DA0000-0x0000000001DE7000-memory.dmp

Filesize
284KB

Download
memory/1184-5-0x0000000001DA0000-0x0000000001DE7000-memory.dmp

Filesize
284KB

Download
memory/1184-6-0x0000000001DA0000-0x0000000001DE7000-memory.dmp

Filesize
284KB

Download