9ec02e66bd6ee97553eea72fc2172245c0d2ce8e18b005a6d431e447a22cbe7a

Analysis

max time kernel
300s
max time network
302s
platform
windows7_x64
resource
win7v20201028
submitted
05-11-2020 18:06

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General

Target

main.file.rtf
Size

675KB
MD5

91c96924f79fe35471bf3a910e5b50d8
SHA1

209edea3cc34d3b65240a5a6e8c969287efae79c
SHA256

e3be9192477e43ad94b16f4c0a9775adf9019172c0c89712907a8f9a1680100c
SHA512

bbacbf2de97b05c25762e94afbdcba550f0e0e2b5e794526344a8e31b0e7dc988049eac686a247b1002d06f1e4e083c84cd348e07848b979f2615682ea3af72a

Score

8^/10

discovery persistence spyware

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

rekeywiz.exe

pid process

1700 rekeywiz.exe
Loads dropped DLL 3 IoCs

Processes:

rekeywiz.exe

pid process

1700 rekeywiz.exe
1700 rekeywiz.exe
1700 rekeywiz.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081

pid	process
1700	rekeywiz.exe

pid	process
1700	rekeywiz.exe
1700	rekeywiz.exe
1700	rekeywiz.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

EQNEDT32.EXE

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\Sync = "C:\\ProgramData\\SyncFiles\\rekeywiz.exe"	EQNEDT32.EXE

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Drops file in Windows directory 1 IoCs

Processes:

WINWORD.EXE

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
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1708 schtasks.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

1984 EQNEDT32.EXE

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

pid	process
1708	schtasks.exe

pid	process
1984	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

Processes:

WINWORD.EXE

description	ioc	process
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 (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
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
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
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

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

Processes:

rekeywiz.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13	rekeywiz.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 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	rekeywiz.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

WINWORD.EXE

pid process

1068 WINWORD.EXE
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

WINWORD.EXE

pid process

1068 WINWORD.EXE
1068 WINWORD.EXE

pid	process
1068	WINWORD.EXE

pid	process
1068	WINWORD.EXE
1068	WINWORD.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

EQNEDT32.EXEWINWORD.EXEtaskeng.exe

description	pid	process	target process
PID 1984 wrote to memory of 1708	1984	EQNEDT32.EXE	schtasks.exe
PID 1984 wrote to memory of 1708	1984	EQNEDT32.EXE	schtasks.exe
PID 1984 wrote to memory of 1708	1984	EQNEDT32.EXE	schtasks.exe
PID 1984 wrote to memory of 1708	1984	EQNEDT32.EXE	schtasks.exe
PID 1068 wrote to memory of 1340	1068	WINWORD.EXE	splwow64.exe
PID 1068 wrote to memory of 1340	1068	WINWORD.EXE	splwow64.exe
PID 1068 wrote to memory of 1340	1068	WINWORD.EXE	splwow64.exe
PID 1068 wrote to memory of 1340	1068	WINWORD.EXE	splwow64.exe
PID 1900 wrote to memory of 1700	1900	taskeng.exe	rekeywiz.exe
PID 1900 wrote to memory of 1700	1900	taskeng.exe	rekeywiz.exe
PID 1900 wrote to memory of 1700	1900	taskeng.exe	rekeywiz.exe
PID 1900 wrote to memory of 1700	1900	taskeng.exe	rekeywiz.exe

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\main.file.rtf"
1⤵
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1068

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:1340

C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
"C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
1⤵
- Adds Run key to start application
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
PID:1984

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /tn "UpdateService" /sc once /tr "C:\ProgramData\SyncFiles\rekeywiz.exe" /st 18:12
2⤵
- Creates scheduled task(s)
PID:1708

C:\Windows\system32\taskeng.exe
taskeng.exe {05628EDE-E4A8-49AD-B3E9-D3738631E5C6} S-1-5-21-3825035466-2522850611-591511364-1000:EIDQHRRL\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1900

C:\ProgramData\SyncFiles\rekeywiz.exe
C:\ProgramData\SyncFiles\rekeywiz.exe
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Modifies system certificate store
PID:1700

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Exploitation for Client Execution

T1203

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Install Root Certificate

T1130

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\SyncFiles\5oD1GtY.tmp
MD5
f8847f6502005fce7afc9ccc80882e9f

SHA1
ab0a3792a8161b25f528a4d5018aa3a3add87d81

SHA256
ebd1624b6542d80e786a510e96636589a76caf2d2e7f93066dccf264b218466c

SHA512
c4b87705a150f27620b97709c6cf11992489bb718fed717cbd4eb053d7e8cbbbc1cd76342538affab72441cc8520636986f5aef5da2463b22ad9eb06af6f5cf2

Download Submit
C:\ProgramData\SyncFiles\DUser.dll
MD5
8c1f5356a3cfc8359fca3a8c1f1f4800

SHA1
3a0242706fcbdfa175758f438671d0069d89c5f2

SHA256
08942e3360e16dd1759ad8faf956e52afe4a4d943e8e1d0a4ffa5b2526d8ec7a

SHA512
a3111d1671374a9b01994cc51959b0e313e87c85c2a7e4470dcbf9b72c7295a770533f96f12bb9c5da0b7ac1664764cf412fb3bcb3be65137148ef6425596d42

Download Submit
C:\ProgramData\SyncFiles\rekeywiz.exe
MD5
082ed4a73761682f897ea1d7f4529f69

SHA1
4f77bda9714d009b16e6a13f88b3e12caf0a779d

SHA256
fa86b5bc5343ca92c235304b8dcbcf4188c6be7d4621c625564bebd5326ed850

SHA512
372c93f63dfeb75de4a1c80f711733efabee635eaa1dfd0a955cae5fd40ba2a3fba8f6ae020cf3b7bb8ccc756fa71a98012be0a328a71c2ba1b4d2b7a0935632

Download Submit
C:\ProgramData\SyncFiles\rekeywiz.exe
MD5
082ed4a73761682f897ea1d7f4529f69

SHA1
4f77bda9714d009b16e6a13f88b3e12caf0a779d

SHA256
fa86b5bc5343ca92c235304b8dcbcf4188c6be7d4621c625564bebd5326ed850

SHA512
372c93f63dfeb75de4a1c80f711733efabee635eaa1dfd0a955cae5fd40ba2a3fba8f6ae020cf3b7bb8ccc756fa71a98012be0a328a71c2ba1b4d2b7a0935632

Download Submit
C:\ProgramData\SyncFiles\rekeywiz.exe.config
MD5
70ecd7e0bdf8f8d01f7f58be6525e079

SHA1
78146939a0a921ac2bcfc5a0ae39705614bc000e

SHA256
b1fa0771099733e7a9fa296acc7518c1e36c4e473b59eec7acbfb89d80252757

SHA512
ed98814c339f50331ea0a80986821aea32b99adf965d6103aa156a655cb201a33dd16fd084432382ea4144ccee41f071c204213bf74324b602daf8d6346780fc

Download Submit
C:\Users\Admin\AppData\Local\Temp\1.a
MD5
bb320006edafb610bdecd3f591e7d074

SHA1
aec6f3bc1132f28fe8940d5941adff7fb3505a48

SHA256
a79e35753a6c764527b4994a38a2df07f890815e57a00aee80de0d89a036366b

SHA512
024660939a06a286696ed6eaf3ddea55a73b324b00f911634bb9f760f2982a068ae19145601abb001dddfc53f9827f6ca30ff57c55431826621e24139f119d8f

Download Submit
\ProgramData\SyncFiles\Duser.dll
MD5
8c1f5356a3cfc8359fca3a8c1f1f4800

SHA1
3a0242706fcbdfa175758f438671d0069d89c5f2

SHA256
08942e3360e16dd1759ad8faf956e52afe4a4d943e8e1d0a4ffa5b2526d8ec7a

SHA512
a3111d1671374a9b01994cc51959b0e313e87c85c2a7e4470dcbf9b72c7295a770533f96f12bb9c5da0b7ac1664764cf412fb3bcb3be65137148ef6425596d42

Download Submit
\ProgramData\SyncFiles\Duser.dll
MD5
8c1f5356a3cfc8359fca3a8c1f1f4800

SHA1
3a0242706fcbdfa175758f438671d0069d89c5f2

SHA256
08942e3360e16dd1759ad8faf956e52afe4a4d943e8e1d0a4ffa5b2526d8ec7a

SHA512
a3111d1671374a9b01994cc51959b0e313e87c85c2a7e4470dcbf9b72c7295a770533f96f12bb9c5da0b7ac1664764cf412fb3bcb3be65137148ef6425596d42

Download Submit
\ProgramData\SyncFiles\Duser.dll
MD5
8c1f5356a3cfc8359fca3a8c1f1f4800

SHA1
3a0242706fcbdfa175758f438671d0069d89c5f2

SHA256
08942e3360e16dd1759ad8faf956e52afe4a4d943e8e1d0a4ffa5b2526d8ec7a

SHA512
a3111d1671374a9b01994cc51959b0e313e87c85c2a7e4470dcbf9b72c7295a770533f96f12bb9c5da0b7ac1664764cf412fb3bcb3be65137148ef6425596d42

Download Submit
memory/1340-2-0x0000000000000000-mapping.dmp

Download
memory/1700-4-0x0000000000000000-mapping.dmp

Download
memory/1708-1-0x0000000000000000-mapping.dmp

Download