phorphiex | f878382efbdcff1151e93bc9ca4c016e72a0c424137728995ad722a36ce37241

Resubmissions

12-11-2021 18:04

211112-wnsjnsdhh4 10

01-10-2021 16:29

211001-tza3nacdfk 10

Analysis

max time kernel
304s
max time network
332s
platform
windows7_x64
resource
win7v20210408
submitted
01-10-2021 16:29

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General

Target

f878382efbdcff1151e93bc9ca4c016e72a0c424137728995ad722a36ce37241.exe
Size

75KB
MD5

4ece4d073b759e00584078490e1424f8
SHA1

a4ec941cfcc1e8151da0bbb5aabe8e5a8d88f6dc
SHA256

f878382efbdcff1151e93bc9ca4c016e72a0c424137728995ad722a36ce37241
SHA512

0c79c74c8f7111a9d6904cfa03b64925ab8b64efe6121eac8836371558672017753af22f7cbb9f2ce3e63642dc2c4b039a6860e33e130fa693596b77896f4654

Score

10^/10

phorphiex evasion loader persistence trojan worm

Malware Config

Signatures

Phorphiex Payload 3 IoCs

Processes:

resource	yara_rule
\16338282331159\svchost.exe	family_phorphiex
C:\16338282331159\svchost.exe	family_phorphiex
C:\16338282331159\svchost.exe	family_phorphiex

Phorphiex Worm
Malware family which infects systems to distribute other malicious payloads such as ransomware, stealers and cryptominers.
worm trojan loader phorphiex
Windows security bypass 2 TTPs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112
Executes dropped EXE 3 IoCs

Processes:

svchost.exe1028510743.exewsecsvcmgr.exe

pid process

1752 svchost.exe
564 1028510743.exe
568 wsecsvcmgr.exe
Loads dropped DLL 3 IoCs

Processes:

f878382efbdcff1151e93bc9ca4c016e72a0c424137728995ad722a36ce37241.exesvchost.exe

pid process

1652 f878382efbdcff1151e93bc9ca4c016e72a0c424137728995ad722a36ce37241.exe
1752 svchost.exe
1752 svchost.exe

pid	process
1752	svchost.exe
564	1028510743.exe
568	wsecsvcmgr.exe

pid	process
1652	f878382efbdcff1151e93bc9ca4c016e72a0c424137728995ad722a36ce37241.exe
1752	svchost.exe
1752	svchost.exe

Windows security modification 2 TTPs 11 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

wsecsvcmgr.exesvchost.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesOverride = "1"	wsecsvcmgr.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	svchost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	svchost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	wsecsvcmgr.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	wsecsvcmgr.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiSpywareOverride = "1"	wsecsvcmgr.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	wsecsvcmgr.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	wsecsvcmgr.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1"	svchost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	svchost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1"	wsecsvcmgr.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

1028510743.exef878382efbdcff1151e93bc9ca4c016e72a0c424137728995ad722a36ce37241.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft Windows Update Service = "C:\\Windows\\wsecsvcmgr.exe"	1028510743.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Host Process for Windows Services = "C:\\16338282331159\\svchost.exe"	f878382efbdcff1151e93bc9ca4c016e72a0c424137728995ad722a36ce37241.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\Host Process for Windows Services = "C:\\16338282331159\\svchost.exe"	f878382efbdcff1151e93bc9ca4c016e72a0c424137728995ad722a36ce37241.exe

Drops file in Windows directory 2 IoCs

Processes:

1028510743.exe

description ioc process

File created C:\Windows\wsecsvcmgr.exe 1028510743.exe
File opened for modification C:\Windows\wsecsvcmgr.exe 1028510743.exe

description	ioc	process
File created	C:\Windows\wsecsvcmgr.exe	1028510743.exe
File opened for modification	C:\Windows\wsecsvcmgr.exe	1028510743.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

f878382efbdcff1151e93bc9ca4c016e72a0c424137728995ad722a36ce37241.exesvchost.exe1028510743.exe

description	pid	process	target process
PID 1652 wrote to memory of 1752	1652	f878382efbdcff1151e93bc9ca4c016e72a0c424137728995ad722a36ce37241.exe	svchost.exe
PID 1652 wrote to memory of 1752	1652	f878382efbdcff1151e93bc9ca4c016e72a0c424137728995ad722a36ce37241.exe	svchost.exe
PID 1652 wrote to memory of 1752	1652	f878382efbdcff1151e93bc9ca4c016e72a0c424137728995ad722a36ce37241.exe	svchost.exe
PID 1652 wrote to memory of 1752	1652	f878382efbdcff1151e93bc9ca4c016e72a0c424137728995ad722a36ce37241.exe	svchost.exe
PID 1752 wrote to memory of 564	1752	svchost.exe	1028510743.exe
PID 1752 wrote to memory of 564	1752	svchost.exe	1028510743.exe
PID 1752 wrote to memory of 564	1752	svchost.exe	1028510743.exe
PID 1752 wrote to memory of 564	1752	svchost.exe	1028510743.exe
PID 564 wrote to memory of 568	564	1028510743.exe	wsecsvcmgr.exe
PID 564 wrote to memory of 568	564	1028510743.exe	wsecsvcmgr.exe
PID 564 wrote to memory of 568	564	1028510743.exe	wsecsvcmgr.exe
PID 564 wrote to memory of 568	564	1028510743.exe	wsecsvcmgr.exe

C:\Users\Admin\AppData\Local\Temp\f878382efbdcff1151e93bc9ca4c016e72a0c424137728995ad722a36ce37241.exe
"C:\Users\Admin\AppData\Local\Temp\f878382efbdcff1151e93bc9ca4c016e72a0c424137728995ad722a36ce37241.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1652

C:\16338282331159\svchost.exe
C:\16338282331159\svchost.exe
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Windows security modification
- Suspicious use of WriteProcessMemory
PID:1752

C:\Users\Admin\AppData\Local\Temp\1028510743.exe
C:\Users\Admin\AppData\Local\Temp\1028510743.exe
3⤵
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:564

C:\Windows\wsecsvcmgr.exe
C:\Windows\wsecsvcmgr.exe
4⤵
- Executes dropped EXE
- Windows security modification
PID:568

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Disabling Security Tools

T1089

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\16338282331159\svchost.exe
MD5
4ece4d073b759e00584078490e1424f8

SHA1
a4ec941cfcc1e8151da0bbb5aabe8e5a8d88f6dc

SHA256
f878382efbdcff1151e93bc9ca4c016e72a0c424137728995ad722a36ce37241

SHA512
0c79c74c8f7111a9d6904cfa03b64925ab8b64efe6121eac8836371558672017753af22f7cbb9f2ce3e63642dc2c4b039a6860e33e130fa693596b77896f4654

Download Submit
C:\16338282331159\svchost.exe
MD5
4ece4d073b759e00584078490e1424f8

SHA1
a4ec941cfcc1e8151da0bbb5aabe8e5a8d88f6dc

SHA256
f878382efbdcff1151e93bc9ca4c016e72a0c424137728995ad722a36ce37241

SHA512
0c79c74c8f7111a9d6904cfa03b64925ab8b64efe6121eac8836371558672017753af22f7cbb9f2ce3e63642dc2c4b039a6860e33e130fa693596b77896f4654

Download Submit
C:\Users\Admin\AppData\Local\Temp\1028510743.exe
MD5
c532ac418f3e867907c2757a7ca56a53

SHA1
0583af526b3825a570237c0d954c445fb30948d3

SHA256
555513aa074aca680c4962f0078f43445a0d382e78046623d53203d8436bad99

SHA512
4d906dfa69bd84c5a7b37cb1139c9de2ce3025bcc6ee0f5d36444c9f75c31e03c8d06d6379ff7ba526a72cce319f979a9e2cbc18bd096e5d4bff53839761608c

Download Submit
C:\Users\Admin\AppData\Local\Temp\1028510743.exe
MD5
c532ac418f3e867907c2757a7ca56a53

SHA1
0583af526b3825a570237c0d954c445fb30948d3

SHA256
555513aa074aca680c4962f0078f43445a0d382e78046623d53203d8436bad99

SHA512
4d906dfa69bd84c5a7b37cb1139c9de2ce3025bcc6ee0f5d36444c9f75c31e03c8d06d6379ff7ba526a72cce319f979a9e2cbc18bd096e5d4bff53839761608c

Download Submit
C:\Windows\wsecsvcmgr.exe
MD5
c532ac418f3e867907c2757a7ca56a53

SHA1
0583af526b3825a570237c0d954c445fb30948d3

SHA256
555513aa074aca680c4962f0078f43445a0d382e78046623d53203d8436bad99

SHA512
4d906dfa69bd84c5a7b37cb1139c9de2ce3025bcc6ee0f5d36444c9f75c31e03c8d06d6379ff7ba526a72cce319f979a9e2cbc18bd096e5d4bff53839761608c

Download Submit
C:\Windows\wsecsvcmgr.exe
MD5
c532ac418f3e867907c2757a7ca56a53

SHA1
0583af526b3825a570237c0d954c445fb30948d3

SHA256
555513aa074aca680c4962f0078f43445a0d382e78046623d53203d8436bad99

SHA512
4d906dfa69bd84c5a7b37cb1139c9de2ce3025bcc6ee0f5d36444c9f75c31e03c8d06d6379ff7ba526a72cce319f979a9e2cbc18bd096e5d4bff53839761608c

Download Submit
\16338282331159\svchost.exe
MD5
4ece4d073b759e00584078490e1424f8

SHA1
a4ec941cfcc1e8151da0bbb5aabe8e5a8d88f6dc

SHA256
f878382efbdcff1151e93bc9ca4c016e72a0c424137728995ad722a36ce37241

SHA512
0c79c74c8f7111a9d6904cfa03b64925ab8b64efe6121eac8836371558672017753af22f7cbb9f2ce3e63642dc2c4b039a6860e33e130fa693596b77896f4654

Download Submit
\Users\Admin\AppData\Local\Temp\1028510743.exe
MD5
c532ac418f3e867907c2757a7ca56a53

SHA1
0583af526b3825a570237c0d954c445fb30948d3

SHA256
555513aa074aca680c4962f0078f43445a0d382e78046623d53203d8436bad99

SHA512
4d906dfa69bd84c5a7b37cb1139c9de2ce3025bcc6ee0f5d36444c9f75c31e03c8d06d6379ff7ba526a72cce319f979a9e2cbc18bd096e5d4bff53839761608c

Download Submit
\Users\Admin\AppData\Local\Temp\1028510743.exe
MD5
c532ac418f3e867907c2757a7ca56a53

SHA1
0583af526b3825a570237c0d954c445fb30948d3

SHA256
555513aa074aca680c4962f0078f43445a0d382e78046623d53203d8436bad99

SHA512
4d906dfa69bd84c5a7b37cb1139c9de2ce3025bcc6ee0f5d36444c9f75c31e03c8d06d6379ff7ba526a72cce319f979a9e2cbc18bd096e5d4bff53839761608c

Download Submit
memory/564-68-0x0000000000000000-mapping.dmp

Download
memory/568-72-0x0000000000000000-mapping.dmp

Download
memory/1652-60-0x0000000076641000-0x0000000076643000-memory.dmp

Filesize
8KB

Download
memory/1752-62-0x0000000000000000-mapping.dmp

Download