d5e5c359d5c4597eea30369c9d76c120e8aaef8d4ac3891281d46815ee07d8ee

General

Target

DHL-ADDRESS.xlsx
Size

897KB
MD5

153ca578a5ab10992e8cac275e297d85
SHA1

ead8e4a6bda2e8570ef6585b22f01795ace04b5a
SHA256

d5e5c359d5c4597eea30369c9d76c120e8aaef8d4ac3891281d46815ee07d8ee
SHA512

d129791eafd8b057a0b51bb010529540b4294322fdfe71440564146594e8b308bff6f2b4672b64669fa7954bea6cec9301b1a2dd146a2e7d7116b14f1d94e2c1

Score

8^/10

ransomware

Malware Config

Signatures

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

6 1752 EQNEDT32.EXE
Executes dropped EXE 2 IoCs

Processes:

vbc.exevbc.exe

pid process

1336 vbc.exe
1328 vbc.exe
Loads dropped DLL 1 IoCs

Processes:

EQNEDT32.EXE

pid process

1752 EQNEDT32.EXE
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
ransomware

System Information Discovery
T1082
Suspicious use of SetThreadContext 1 IoCs

Processes:

vbc.exe

description pid process target process

PID 1336 set thread context of 1328 1336 vbc.exe vbc.exe
Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

EXCEL.EXE

description ioc process

Key opened \REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor EXCEL.EXE
Launches Equation Editor 1 TTPs 1 IoCs
Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.
exploit

Exploitation for Client Execution
T1203

Processes:

EQNEDT32.EXE

pid process

1752 EQNEDT32.EXE

flow	pid	process
6	1752	EQNEDT32.EXE

pid	process
1336	vbc.exe
1328	vbc.exe

pid	process
1752	EQNEDT32.EXE

description	pid	process	target process
PID 1336 set thread context of 1328	1336	vbc.exe	vbc.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

pid	process
1752	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.EXE

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1668 EXCEL.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

vbc.exe

pid process

1328 vbc.exe
1328 vbc.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

vbc.exe

description pid process

Token: SeDebugPrivilege 1328 vbc.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1668 EXCEL.EXE
1668 EXCEL.EXE
1668 EXCEL.EXE

pid	process
1668	EXCEL.EXE

pid	process
1328	vbc.exe
1328	vbc.exe

description	pid	process
Token: SeDebugPrivilege	1328	vbc.exe

pid	process
1668	EXCEL.EXE
1668	EXCEL.EXE
1668	EXCEL.EXE

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

EQNEDT32.EXEvbc.exe

description	pid	process	target process
PID 1752 wrote to memory of 1336	1752	EQNEDT32.EXE	vbc.exe
PID 1752 wrote to memory of 1336	1752	EQNEDT32.EXE	vbc.exe
PID 1752 wrote to memory of 1336	1752	EQNEDT32.EXE	vbc.exe
PID 1752 wrote to memory of 1336	1752	EQNEDT32.EXE	vbc.exe
PID 1336 wrote to memory of 1328	1336	vbc.exe	vbc.exe
PID 1336 wrote to memory of 1328	1336	vbc.exe	vbc.exe
PID 1336 wrote to memory of 1328	1336	vbc.exe	vbc.exe
PID 1336 wrote to memory of 1328	1336	vbc.exe	vbc.exe
PID 1336 wrote to memory of 1328	1336	vbc.exe	vbc.exe
PID 1336 wrote to memory of 1328	1336	vbc.exe	vbc.exe
PID 1336 wrote to memory of 1328	1336	vbc.exe	vbc.exe
PID 1336 wrote to memory of 1328	1336	vbc.exe	vbc.exe
PID 1336 wrote to memory of 1328	1336	vbc.exe	vbc.exe

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\DHL-ADDRESS.xlsx
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1668

C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
"C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
1⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
PID:1752

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1336

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1328

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1

T1064

Exploitation for Client Execution

1

T1203

Persistence

Privilege Escalation

Defense Evasion

Scripting

1

T1064

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

2

T1082

Query Registry

1

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Public\vbc.exe
MD5
10801c62dc23ddb26ffd88b67c43c657

SHA1
f32edbdb11334a56ebe58c3caa3dc2452e69180b

SHA256
d7587177c5cc5b1d1ef4d0a0a7ddac3834934740e9e0ff53805addab18c03a25

SHA512
d8d03514a88ef8bceecaf70b252615b19b89733382a6821fdf76ec1859910b9ff253fa1c4a0eada9dabab9faef4613eb26336b6aba2779a535b3252397661559

Download Submit
C:\Users\Public\vbc.exe
MD5
10801c62dc23ddb26ffd88b67c43c657

SHA1
f32edbdb11334a56ebe58c3caa3dc2452e69180b

SHA256
d7587177c5cc5b1d1ef4d0a0a7ddac3834934740e9e0ff53805addab18c03a25

SHA512
d8d03514a88ef8bceecaf70b252615b19b89733382a6821fdf76ec1859910b9ff253fa1c4a0eada9dabab9faef4613eb26336b6aba2779a535b3252397661559

Download Submit
C:\Users\Public\vbc.exe
MD5
10801c62dc23ddb26ffd88b67c43c657

SHA1
f32edbdb11334a56ebe58c3caa3dc2452e69180b

SHA256
d7587177c5cc5b1d1ef4d0a0a7ddac3834934740e9e0ff53805addab18c03a25

SHA512
d8d03514a88ef8bceecaf70b252615b19b89733382a6821fdf76ec1859910b9ff253fa1c4a0eada9dabab9faef4613eb26336b6aba2779a535b3252397661559

Download Submit
\Users\Public\vbc.exe
MD5
10801c62dc23ddb26ffd88b67c43c657

SHA1
f32edbdb11334a56ebe58c3caa3dc2452e69180b

SHA256
d7587177c5cc5b1d1ef4d0a0a7ddac3834934740e9e0ff53805addab18c03a25

SHA512
d8d03514a88ef8bceecaf70b252615b19b89733382a6821fdf76ec1859910b9ff253fa1c4a0eada9dabab9faef4613eb26336b6aba2779a535b3252397661559

Download Submit
memory/872-6-0x000007FEF7080000-0x000007FEF72FA000-memory.dmp

Filesize
2.5MB

Download
memory/1328-18-0x000000000043765E-mapping.dmp

Download
memory/1328-17-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1328-23-0x0000000004A60000-0x0000000004A61000-memory.dmp

Filesize
4KB

Download
memory/1328-21-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1328-20-0x000000006C0B0000-0x000000006C79E000-memory.dmp

Filesize
6.9MB

Download
memory/1336-15-0x0000000004FA0000-0x0000000004FA1000-memory.dmp

Filesize
4KB

Download
memory/1336-14-0x0000000000A30000-0x0000000000A53000-memory.dmp

Filesize
140KB

Download
memory/1336-8-0x0000000000000000-mapping.dmp

Download
memory/1336-16-0x0000000004FE0000-0x0000000005058000-memory.dmp

Filesize
480KB

Download
memory/1336-12-0x0000000000C60000-0x0000000000C61000-memory.dmp

Filesize
4KB

Download
memory/1336-11-0x000000006C0B0000-0x000000006C79E000-memory.dmp

Filesize
6.9MB

Download
memory/1668-2-0x000000002FEC1000-0x000000002FEC4000-memory.dmp

Filesize
12KB

Download
memory/1668-3-0x0000000071001000-0x0000000071003000-memory.dmp

Filesize
8KB

Download
memory/1668-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1752-5-0x0000000074B31000-0x0000000074B33000-memory.dmp

Filesize
8KB

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Analysis

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