91a31ae7de6c7cfa8123333cec0fb4ac9317b12e8b1ede01de97936c8ab82ed7

General

Target

QPR-1064.pdf.exe
Size

1.4MB
MD5

64b5e237121e4d6832c5de27f2c4bac0
SHA1

bdddc8f90be60f49404180f4070f2b094728d8dd
SHA256

91a31ae7de6c7cfa8123333cec0fb4ac9317b12e8b1ede01de97936c8ab82ed7
SHA512

8ed87aaeb6500243445d29a5aa20f2dce5c21df727bf15f186993362e96db848fce23daa7e0603c82da3552979006e3bcda284c68ba856c6d8cd80b5c5077a8c

Score

8^/10

persistence spyware

Malware Config

Signatures

Executes dropped EXE 2 IoCs

Processes:

explg.exeInstallUtil.exe

pid process

620 explg.exe
920 InstallUtil.exe
Loads dropped DLL 2 IoCs

Processes:

QPR-1064.pdf.exeexplg.exe

pid process

1204 QPR-1064.pdf.exe
620 explg.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
620	explg.exe
920	InstallUtil.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\hpor = "C:\\Users\\Admin\\explg.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

11 freegeoip.app
12 freegeoip.app
6 checkip.dyndns.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

explg.exe

description pid process target process

PID 620 set thread context of 920 620 explg.exe InstallUtil.exe

flow	ioc
11	freegeoip.app
12	freegeoip.app
6	checkip.dyndns.org

description	pid	process	target process
PID 620 set thread context of 920	620	explg.exe	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

Processes:

QPR-1064.pdf.exeexplg.exeInstallUtil.exe

pid	process
1204	QPR-1064.pdf.exe
1204	QPR-1064.pdf.exe
1204	QPR-1064.pdf.exe
1204	QPR-1064.pdf.exe
1204	QPR-1064.pdf.exe
620	explg.exe
620	explg.exe
920	InstallUtil.exe
920	InstallUtil.exe
920	InstallUtil.exe
920	InstallUtil.exe
920	InstallUtil.exe
920	InstallUtil.exe
920	InstallUtil.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

InstallUtil.exe

pid process

920 InstallUtil.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

QPR-1064.pdf.exeexplg.exeInstallUtil.exe

description pid process

Token: SeDebugPrivilege 1204 QPR-1064.pdf.exe
Token: SeDebugPrivilege 620 explg.exe
Token: SeDebugPrivilege 920 InstallUtil.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

InstallUtil.exe

pid process

920 InstallUtil.exe

pid	process
920	InstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	1204	QPR-1064.pdf.exe
Token: SeDebugPrivilege	620	explg.exe
Token: SeDebugPrivilege	920	InstallUtil.exe

pid	process
920	InstallUtil.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

QPR-1064.pdf.execmd.exeexplg.exe

description	pid	process	target process
PID 1204 wrote to memory of 1448	1204	QPR-1064.pdf.exe	cmd.exe
PID 1204 wrote to memory of 1448	1204	QPR-1064.pdf.exe	cmd.exe
PID 1204 wrote to memory of 1448	1204	QPR-1064.pdf.exe	cmd.exe
PID 1204 wrote to memory of 1448	1204	QPR-1064.pdf.exe	cmd.exe
PID 1448 wrote to memory of 1376	1448	cmd.exe	reg.exe
PID 1448 wrote to memory of 1376	1448	cmd.exe	reg.exe
PID 1448 wrote to memory of 1376	1448	cmd.exe	reg.exe
PID 1448 wrote to memory of 1376	1448	cmd.exe	reg.exe
PID 1204 wrote to memory of 620	1204	QPR-1064.pdf.exe	explg.exe
PID 1204 wrote to memory of 620	1204	QPR-1064.pdf.exe	explg.exe
PID 1204 wrote to memory of 620	1204	QPR-1064.pdf.exe	explg.exe
PID 1204 wrote to memory of 620	1204	QPR-1064.pdf.exe	explg.exe
PID 620 wrote to memory of 920	620	explg.exe	InstallUtil.exe
PID 620 wrote to memory of 920	620	explg.exe	InstallUtil.exe
PID 620 wrote to memory of 920	620	explg.exe	InstallUtil.exe
PID 620 wrote to memory of 920	620	explg.exe	InstallUtil.exe
PID 620 wrote to memory of 920	620	explg.exe	InstallUtil.exe
PID 620 wrote to memory of 920	620	explg.exe	InstallUtil.exe
PID 620 wrote to memory of 920	620	explg.exe	InstallUtil.exe
PID 620 wrote to memory of 920	620	explg.exe	InstallUtil.exe
PID 620 wrote to memory of 920	620	explg.exe	InstallUtil.exe
PID 620 wrote to memory of 920	620	explg.exe	InstallUtil.exe
PID 620 wrote to memory of 920	620	explg.exe	InstallUtil.exe
PID 620 wrote to memory of 920	620	explg.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\QPR-1064.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\QPR-1064.pdf.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1204

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /c REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "hpor" /t REG_SZ /d "C:\Users\Admin\explg.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:1448

C:\Windows\SysWOW64\reg.exe
REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "hpor" /t REG_SZ /d "C:\Users\Admin\explg.exe"
3⤵
- Adds Run key to start application
PID:1376

C:\Users\Admin\explg.exe
"C:\Users\Admin\explg.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:620

C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
"C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:920

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

Lateral Movement

Collection

Data from Local System

3

T1005

Exfiltration

Command and Control

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\explg.exe
MD5
64b5e237121e4d6832c5de27f2c4bac0

SHA1
bdddc8f90be60f49404180f4070f2b094728d8dd

SHA256
91a31ae7de6c7cfa8123333cec0fb4ac9317b12e8b1ede01de97936c8ab82ed7

SHA512
8ed87aaeb6500243445d29a5aa20f2dce5c21df727bf15f186993362e96db848fce23daa7e0603c82da3552979006e3bcda284c68ba856c6d8cd80b5c5077a8c

Download Submit
C:\Users\Admin\explg.exe
MD5
64b5e237121e4d6832c5de27f2c4bac0

SHA1
bdddc8f90be60f49404180f4070f2b094728d8dd

SHA256
91a31ae7de6c7cfa8123333cec0fb4ac9317b12e8b1ede01de97936c8ab82ed7

SHA512
8ed87aaeb6500243445d29a5aa20f2dce5c21df727bf15f186993362e96db848fce23daa7e0603c82da3552979006e3bcda284c68ba856c6d8cd80b5c5077a8c

Download Submit
\Users\Admin\AppData\Local\Temp\InstallUtil.exe
MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
\Users\Admin\explg.exe
MD5
64b5e237121e4d6832c5de27f2c4bac0

SHA1
bdddc8f90be60f49404180f4070f2b094728d8dd

SHA256
91a31ae7de6c7cfa8123333cec0fb4ac9317b12e8b1ede01de97936c8ab82ed7

SHA512
8ed87aaeb6500243445d29a5aa20f2dce5c21df727bf15f186993362e96db848fce23daa7e0603c82da3552979006e3bcda284c68ba856c6d8cd80b5c5077a8c

Download Submit
memory/620-13-0x0000000073E00000-0x00000000744EE000-memory.dmp

Filesize
6.9MB

Download
memory/620-14-0x00000000003A0000-0x00000000003A1000-memory.dmp

Filesize
4KB

Download
memory/620-10-0x0000000000000000-mapping.dmp

Download
memory/620-19-0x00000000007E0000-0x00000000007E1000-memory.dmp

Filesize
4KB

Download
memory/620-18-0x0000000000590000-0x000000000059B000-memory.dmp

Filesize
44KB

Download
memory/920-22-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/920-23-0x0000000000463A2E-mapping.dmp

Download
memory/920-25-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/920-26-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/920-27-0x0000000073E00000-0x00000000744EE000-memory.dmp

Filesize
6.9MB

Download
memory/1204-2-0x0000000073E00000-0x00000000744EE000-memory.dmp

Filesize
6.9MB

Download
memory/1204-6-0x00000000004D0000-0x00000000004D1000-memory.dmp

Filesize
4KB

Download
memory/1204-5-0x00000000004B0000-0x00000000004CE000-memory.dmp

Filesize
120KB

Download
memory/1204-3-0x0000000000340000-0x0000000000341000-memory.dmp

Filesize
4KB

Download
memory/1376-8-0x0000000000000000-mapping.dmp

Download
memory/1448-7-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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