1787f73acf804bff30fe863e077fb5bc9799b3cb39065534198f894757907e79

General

Target

Quotation.exe
Size

720KB
MD5

a71b92a0262b4067b2da39ad1f39bef5
SHA1

5fab5dc05795e35879eeab69f9c8172e4963431c
SHA256

1787f73acf804bff30fe863e077fb5bc9799b3cb39065534198f894757907e79
SHA512

8ca4c96e2942b8da52e5644fee5bd9c90beaa91d2cb52aeab83955dbc98d71269d280c530908ef4811b5c06833720ece2d8b3666f030b66b8e40b1e769eab7a3

Score

10^/10

persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\rthfy.exe,"	reg.exe

Executes dropped EXE 2 IoCs

Processes:

rthfy.exeAddInProcess32.exe

pid process

3036 rthfy.exe
3796 AddInProcess32.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

rthfy.exe

description pid process target process

PID 3036 set thread context of 3796 3036 rthfy.exe AddInProcess32.exe

pid	process
3036	rthfy.exe
3796	AddInProcess32.exe

description	pid	process	target process
PID 3036 set thread context of 3796	3036	rthfy.exe	AddInProcess32.exe

Suspicious behavior: EnumeratesProcesses 19 IoCs

Processes:

Quotation.exerthfy.exe

pid	process
4700	Quotation.exe
4700	Quotation.exe
4700	Quotation.exe
4700	Quotation.exe
4700	Quotation.exe
4700	Quotation.exe
4700	Quotation.exe
4700	Quotation.exe
4700	Quotation.exe
4700	Quotation.exe
4700	Quotation.exe
4700	Quotation.exe
4700	Quotation.exe
4700	Quotation.exe
4700	Quotation.exe
4700	Quotation.exe
4700	Quotation.exe
3036	rthfy.exe
3036	rthfy.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Quotation.exerthfy.exe

description pid process

Token: SeDebugPrivilege 4700 Quotation.exe
Token: SeDebugPrivilege 3036 rthfy.exe

description	pid	process
Token: SeDebugPrivilege	4700	Quotation.exe
Token: SeDebugPrivilege	3036	rthfy.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

Quotation.execmd.exerthfy.exe

description	pid	process	target process
PID 4700 wrote to memory of 3696	4700	Quotation.exe	cmd.exe
PID 4700 wrote to memory of 3696	4700	Quotation.exe	cmd.exe
PID 4700 wrote to memory of 3696	4700	Quotation.exe	cmd.exe
PID 3696 wrote to memory of 504	3696	cmd.exe	reg.exe
PID 3696 wrote to memory of 504	3696	cmd.exe	reg.exe
PID 3696 wrote to memory of 504	3696	cmd.exe	reg.exe
PID 4700 wrote to memory of 3036	4700	Quotation.exe	rthfy.exe
PID 4700 wrote to memory of 3036	4700	Quotation.exe	rthfy.exe
PID 4700 wrote to memory of 3036	4700	Quotation.exe	rthfy.exe
PID 3036 wrote to memory of 3796	3036	rthfy.exe	AddInProcess32.exe
PID 3036 wrote to memory of 3796	3036	rthfy.exe	AddInProcess32.exe
PID 3036 wrote to memory of 3796	3036	rthfy.exe	AddInProcess32.exe
PID 3036 wrote to memory of 3796	3036	rthfy.exe	AddInProcess32.exe
PID 3036 wrote to memory of 3796	3036	rthfy.exe	AddInProcess32.exe
PID 3036 wrote to memory of 3796	3036	rthfy.exe	AddInProcess32.exe
PID 3036 wrote to memory of 3796	3036	rthfy.exe	AddInProcess32.exe
PID 3036 wrote to memory of 3796	3036	rthfy.exe	AddInProcess32.exe
PID 3036 wrote to memory of 3796	3036	rthfy.exe	AddInProcess32.exe

C:\Users\Admin\AppData\Local\Temp\Quotation.exe
"C:\Users\Admin\AppData\Local\Temp\Quotation.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4700

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /c REG ADD "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v "Shell" /t REG_SZ /d "explorer.exe,C:\Users\Admin\rthfy.exe,"
2⤵
- Suspicious use of WriteProcessMemory
PID:3696

C:\Windows\SysWOW64\reg.exe
REG ADD "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v "Shell" /t REG_SZ /d "explorer.exe,C:\Users\Admin\rthfy.exe,"
3⤵
- Modifies WinLogon for persistence
PID:504

C:\Users\Admin\rthfy.exe
"C:\Users\Admin\rthfy.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3036

C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
"C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"
3⤵
- Executes dropped EXE
PID:3796

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
MD5
6a673bfc3b67ae9782cb31af2f234c68

SHA1
7544e89566d91e84e3cd437b9a073e5f6b56566e

SHA256
978a4093058aa2ebf05dc353897d90d950324389879b57741b64160825b5ec0e

SHA512
72c302372ce87ceda2a3c70a6005d3f9c112f1641bc7fe6824c718971233e66c07e2996d2785fa358566c38714c25ea812c05c7cfd2f588284849d495fd24f39

Download Submit
C:\Users\Admin\rthfy.exe
MD5
a71b92a0262b4067b2da39ad1f39bef5

SHA1
5fab5dc05795e35879eeab69f9c8172e4963431c

SHA256
1787f73acf804bff30fe863e077fb5bc9799b3cb39065534198f894757907e79

SHA512
8ca4c96e2942b8da52e5644fee5bd9c90beaa91d2cb52aeab83955dbc98d71269d280c530908ef4811b5c06833720ece2d8b3666f030b66b8e40b1e769eab7a3

Download Submit
C:\Users\Admin\rthfy.exe
MD5
a71b92a0262b4067b2da39ad1f39bef5

SHA1
5fab5dc05795e35879eeab69f9c8172e4963431c

SHA256
1787f73acf804bff30fe863e077fb5bc9799b3cb39065534198f894757907e79

SHA512
8ca4c96e2942b8da52e5644fee5bd9c90beaa91d2cb52aeab83955dbc98d71269d280c530908ef4811b5c06833720ece2d8b3666f030b66b8e40b1e769eab7a3

Download Submit
memory/504-10-0x0000000000000000-mapping.dmp

Download
memory/3036-21-0x00000000083B0000-0x00000000083BB000-memory.dmp

Filesize
44KB

Download
memory/3036-11-0x0000000000000000-mapping.dmp

Download
memory/3036-14-0x0000000073CE0000-0x00000000743CE000-memory.dmp

Filesize
6.9MB

Download
memory/3036-22-0x0000000004A70000-0x0000000004A71000-memory.dmp

Filesize
4KB

Download
memory/3696-9-0x0000000000000000-mapping.dmp

Download
memory/3796-24-0x0000000000401190-mapping.dmp

Download
memory/4700-8-0x0000000007610000-0x0000000007611000-memory.dmp

Filesize
4KB

Download
memory/4700-7-0x00000000025C0000-0x00000000025C1000-memory.dmp

Filesize
4KB

Download
memory/4700-6-0x00000000025A0000-0x00000000025BE000-memory.dmp

Filesize
120KB

Download
memory/4700-5-0x0000000004C70000-0x0000000004C71000-memory.dmp

Filesize
4KB

Download
memory/4700-2-0x0000000073CE0000-0x00000000743CE000-memory.dmp

Filesize
6.9MB

Download
memory/4700-3-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads