b1251d0a542cd96f6957904d30289cbf675035ae79ac4158fc098aa84cd22506

General

Target

PO-5042.scr
Size

1.5MB
MD5

f502ba6dcaa52430ff540dbdef13c40b
SHA1

b697dbbac2192c5416648413f0639e9da4763c9a
SHA256

b1251d0a542cd96f6957904d30289cbf675035ae79ac4158fc098aa84cd22506
SHA512

b8d1a484012238d7a0d49bbe2077231b2bc39cd0581bc8e41b8e24ff2fcc39580ed8cecafea2570acf1df9d3ee1eb713415c80d1af1735fc029fe696b19d5d81

Score

8^/10

persistence spyware

Malware Config

Signatures

Executes dropped EXE 2 IoCs

Processes:

explore.exeInstallUtil.exe

pid process

1588 explore.exe
1852 InstallUtil.exe
Loads dropped DLL 2 IoCs

Processes:

PO-5042.screxplore.exe

pid process

596 PO-5042.scr
1588 explore.exe
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware

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

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

Data from Local System
T1005

Credentials in Files
T1081

pid	process
1588	explore.exe
1852	InstallUtil.exe

pid	process
596	PO-5042.scr
1588	explore.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\explore = "C:\\Users\\Admin\\explore.exe"	reg.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

5 checkip.dyndns.org
10 freegeoip.app
11 freegeoip.app
Suspicious use of SetThreadContext 1 IoCs

Processes:

explore.exe

description pid process target process

PID 1588 set thread context of 1852 1588 explore.exe InstallUtil.exe
Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

PO-5042.screxplore.exeInstallUtil.exe

pid process

596 PO-5042.scr
596 PO-5042.scr
596 PO-5042.scr
596 PO-5042.scr
596 PO-5042.scr
1588 explore.exe
1588 explore.exe
1852 InstallUtil.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

PO-5042.screxplore.exeInstallUtil.exe

description pid process

Token: SeDebugPrivilege 596 PO-5042.scr
Token: SeDebugPrivilege 1588 explore.exe
Token: SeDebugPrivilege 1852 InstallUtil.exe

flow	ioc
5	checkip.dyndns.org
10	freegeoip.app
11	freegeoip.app

description	pid	process	target process
PID 1588 set thread context of 1852	1588	explore.exe	InstallUtil.exe

pid	process
596	PO-5042.scr
596	PO-5042.scr
596	PO-5042.scr
596	PO-5042.scr
596	PO-5042.scr
1588	explore.exe
1588	explore.exe
1852	InstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	596	PO-5042.scr
Token: SeDebugPrivilege	1588	explore.exe
Token: SeDebugPrivilege	1852	InstallUtil.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

PO-5042.scrcmd.exeexplore.exe

description	pid	process	target process
PID 596 wrote to memory of 1224	596	PO-5042.scr	cmd.exe
PID 596 wrote to memory of 1224	596	PO-5042.scr	cmd.exe
PID 596 wrote to memory of 1224	596	PO-5042.scr	cmd.exe
PID 596 wrote to memory of 1224	596	PO-5042.scr	cmd.exe
PID 1224 wrote to memory of 1532	1224	cmd.exe	reg.exe
PID 1224 wrote to memory of 1532	1224	cmd.exe	reg.exe
PID 1224 wrote to memory of 1532	1224	cmd.exe	reg.exe
PID 1224 wrote to memory of 1532	1224	cmd.exe	reg.exe
PID 596 wrote to memory of 1588	596	PO-5042.scr	explore.exe
PID 596 wrote to memory of 1588	596	PO-5042.scr	explore.exe
PID 596 wrote to memory of 1588	596	PO-5042.scr	explore.exe
PID 596 wrote to memory of 1588	596	PO-5042.scr	explore.exe
PID 1588 wrote to memory of 1852	1588	explore.exe	InstallUtil.exe
PID 1588 wrote to memory of 1852	1588	explore.exe	InstallUtil.exe
PID 1588 wrote to memory of 1852	1588	explore.exe	InstallUtil.exe
PID 1588 wrote to memory of 1852	1588	explore.exe	InstallUtil.exe
PID 1588 wrote to memory of 1852	1588	explore.exe	InstallUtil.exe
PID 1588 wrote to memory of 1852	1588	explore.exe	InstallUtil.exe
PID 1588 wrote to memory of 1852	1588	explore.exe	InstallUtil.exe
PID 1588 wrote to memory of 1852	1588	explore.exe	InstallUtil.exe
PID 1588 wrote to memory of 1852	1588	explore.exe	InstallUtil.exe
PID 1588 wrote to memory of 1852	1588	explore.exe	InstallUtil.exe
PID 1588 wrote to memory of 1852	1588	explore.exe	InstallUtil.exe
PID 1588 wrote to memory of 1852	1588	explore.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\PO-5042.scr
"C:\Users\Admin\AppData\Local\Temp\PO-5042.scr" /S
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:596

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /c REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "explore" /t REG_SZ /d "C:\Users\Admin\explore.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:1224

C:\Windows\SysWOW64\reg.exe
REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "explore" /t REG_SZ /d "C:\Users\Admin\explore.exe"
3⤵
- Adds Run key to start application
PID:1532

C:\Users\Admin\explore.exe
"C:\Users\Admin\explore.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1588

C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
"C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1852

Network

MITRE ATT&CK Enterprise 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

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe

MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe

MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
C:\Users\Admin\explore.exe

MD5
f502ba6dcaa52430ff540dbdef13c40b

SHA1
b697dbbac2192c5416648413f0639e9da4763c9a

SHA256
b1251d0a542cd96f6957904d30289cbf675035ae79ac4158fc098aa84cd22506

SHA512
b8d1a484012238d7a0d49bbe2077231b2bc39cd0581bc8e41b8e24ff2fcc39580ed8cecafea2570acf1df9d3ee1eb713415c80d1af1735fc029fe696b19d5d81

Download Submit
C:\Users\Admin\explore.exe

MD5
f502ba6dcaa52430ff540dbdef13c40b

SHA1
b697dbbac2192c5416648413f0639e9da4763c9a

SHA256
b1251d0a542cd96f6957904d30289cbf675035ae79ac4158fc098aa84cd22506

SHA512
b8d1a484012238d7a0d49bbe2077231b2bc39cd0581bc8e41b8e24ff2fcc39580ed8cecafea2570acf1df9d3ee1eb713415c80d1af1735fc029fe696b19d5d81

Download Submit
\Users\Admin\AppData\Local\Temp\InstallUtil.exe

MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
\Users\Admin\explore.exe

MD5
f502ba6dcaa52430ff540dbdef13c40b

SHA1
b697dbbac2192c5416648413f0639e9da4763c9a

SHA256
b1251d0a542cd96f6957904d30289cbf675035ae79ac4158fc098aa84cd22506

SHA512
b8d1a484012238d7a0d49bbe2077231b2bc39cd0581bc8e41b8e24ff2fcc39580ed8cecafea2570acf1df9d3ee1eb713415c80d1af1735fc029fe696b19d5d81

Download Submit
memory/596-3-0x0000000001300000-0x0000000001301000-memory.dmp

Filesize
4KB

Download
memory/596-5-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/596-6-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/596-2-0x0000000073D40000-0x000000007442E000-memory.dmp

Filesize
6.9MB

Download
memory/1224-7-0x0000000000000000-mapping.dmp

Download
memory/1532-8-0x0000000000000000-mapping.dmp

Download
memory/1588-18-0x0000000000AE0000-0x0000000000AEB000-memory.dmp

Filesize
44KB

Download
memory/1588-19-0x0000000000C70000-0x0000000000C71000-memory.dmp

Filesize
4KB

Download
memory/1588-14-0x0000000000DE0000-0x0000000000DE1000-memory.dmp

Filesize
4KB

Download
memory/1588-13-0x0000000073D40000-0x000000007442E000-memory.dmp

Filesize
6.9MB

Download
memory/1588-10-0x0000000000000000-mapping.dmp

Download
memory/1852-22-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/1852-23-0x00000000004624FE-mapping.dmp

Download
memory/1852-25-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

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memory/1852-26-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/1852-27-0x0000000073D40000-0x000000007442E000-memory.dmp

Filesize
6.9MB

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Analysis

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