f45d2efc6e407a17cbe129622fddf8a26e108d39f5fd05a164525d95ad8a3218

General

Target
Email data form.doc
Size 2.0MB
Sample201218-nrt96bndax
SHA256 f45d2efc6e407a17cbe129622fddf8a26e108d39f5fd05a164525d95ad8a3218
MD5 92ec9bb34778f7f1da2bde62166d14df
SHA1 04805e8ec6f94832eac9a36f56edaf6fa07cd1c9
SHA512 0238b9a88d03057ba44f73d7d69cdc615d6049e508a2f8c3aaa4ad0550b8d9074b7b9e865019a8df424ab38fc352f5cd8231da409a640f29e991efa2e99bbedd
MD5 SHA1 SHA512

Score

8^/10

Malware Config

Signatures

Blocklisted process makes network request 5 IoCs

flow	pid	Process
6	1724	EQNEDT32.EXE
7	1724	EQNEDT32.EXE
9	1724	EQNEDT32.EXE
11	1724	EQNEDT32.EXE
13	1724	EQNEDT32.EXE

Executes dropped EXE 6 IoCs

pid	Process
1188	angel7927.scr
1584	angel7927.scr
1712	angel7927.scr
1568	angel7927.scr
1760	angel7927.scr
1328	angel7927.scr

Loads dropped DLL 2 IoCs

pid	Process
1724	EQNEDT32.EXE
1724	EQNEDT32.EXE

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Debug\WIA\wiatrace.log	WINWORD.EXE

Office loads VBA resources, possible macro or embedded object present

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

pid	Process
1724	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
748	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
1188	angel7927.scr
1188	angel7927.scr
1188	angel7927.scr
1188	angel7927.scr
1188	angel7927.scr
1188	angel7927.scr
1188	angel7927.scr
1188	angel7927.scr
1188	angel7927.scr
1188	angel7927.scr

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1188	angel7927.scr

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
748	WINWORD.EXE
748	WINWORD.EXE

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 1724 wrote to memory of 1188	1724	EQNEDT32.EXE	32
PID 1724 wrote to memory of 1188	1724	EQNEDT32.EXE	32
PID 1724 wrote to memory of 1188	1724	EQNEDT32.EXE	32
PID 1724 wrote to memory of 1188	1724	EQNEDT32.EXE	32
PID 1188 wrote to memory of 1584	1188	angel7927.scr	35
PID 1188 wrote to memory of 1584	1188	angel7927.scr	35
PID 1188 wrote to memory of 1584	1188	angel7927.scr	35
PID 1188 wrote to memory of 1584	1188	angel7927.scr	35
PID 1188 wrote to memory of 1712	1188	angel7927.scr	36
PID 1188 wrote to memory of 1712	1188	angel7927.scr	36
PID 1188 wrote to memory of 1712	1188	angel7927.scr	36
PID 1188 wrote to memory of 1712	1188	angel7927.scr	36
PID 1188 wrote to memory of 1568	1188	angel7927.scr	37
PID 1188 wrote to memory of 1568	1188	angel7927.scr	37
PID 1188 wrote to memory of 1568	1188	angel7927.scr	37
PID 1188 wrote to memory of 1568	1188	angel7927.scr	37
PID 1188 wrote to memory of 1760	1188	angel7927.scr	38
PID 1188 wrote to memory of 1760	1188	angel7927.scr	38
PID 1188 wrote to memory of 1760	1188	angel7927.scr	38
PID 1188 wrote to memory of 1760	1188	angel7927.scr	38
PID 1188 wrote to memory of 1328	1188	angel7927.scr	39
PID 1188 wrote to memory of 1328	1188	angel7927.scr	39
PID 1188 wrote to memory of 1328	1188	angel7927.scr	39
PID 1188 wrote to memory of 1328	1188	angel7927.scr	39

C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\Email data form.doc"
1⤵
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:748

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:1724
- C:\Users\Admin\AppData\Roaming\angel7927.scr
  "C:\Users\Admin\AppData\Roaming\angel7927.scr"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1188
- - C:\Users\Admin\AppData\Roaming\angel7927.scr
    "C:\Users\Admin\AppData\Roaming\angel7927.scr"
    3⤵
    - Executes dropped EXE
    PID:1584
- - C:\Users\Admin\AppData\Roaming\angel7927.scr
    "C:\Users\Admin\AppData\Roaming\angel7927.scr"
    3⤵
    - Executes dropped EXE
    PID:1712
- - C:\Users\Admin\AppData\Roaming\angel7927.scr
    "C:\Users\Admin\AppData\Roaming\angel7927.scr"
    3⤵
    - Executes dropped EXE
    PID:1568
- - C:\Users\Admin\AppData\Roaming\angel7927.scr
    "C:\Users\Admin\AppData\Roaming\angel7927.scr"
    3⤵
    - Executes dropped EXE
    PID:1760
- - C:\Users\Admin\AppData\Roaming\angel7927.scr
    "C:\Users\Admin\AppData\Roaming\angel7927.scr"
    3⤵
    - Executes dropped EXE
    PID:1328

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Exploitation for Client Execution

1

T1203

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1188-8-0x000000006B3F0000-0x000000006BADE000-memory.dmp

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memory/1188-9-0x0000000000250000-0x0000000000251000-memory.dmp

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memory/1188-11-0x00000000004F0000-0x000000000052D000-memory.dmp

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memory/1520-2-0x000007FEF6350000-0x000007FEF65CA000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads