raccoon | 3c95dfb117835ab0edf303278462ff7a513a8b65c8e91d85b918e2eeaf3b9fb2

General

Target
c9661caa38dea46ddd786a2f5fc23706.exe
Size 525KB
Sample210921-hs86bsbcdp
SHA256 3c95dfb117835ab0edf303278462ff7a513a8b65c8e91d85b918e2eeaf3b9fb2
MD5 c9661caa38dea46ddd786a2f5fc23706
SHA1 a1639ffb4e1d66574127871b5f3192f48796c3ab
SHA512 1614ede8de0c8f30632d015031cc72f9617ec3374260abc96748be2840283fe1998e15005b0cf2070eaceec02c27e08b62c6c49a86ae754c499340af532aa551
MD5 SHA1 SHA512

Score

10^/10

Raccoon
Simple but powerful infostealer which was very active in 2019.
stealer raccoon
suricata: ET MALWARE Single char EXE direct download likely trojan (multiple families)
suricata: ET MALWARE Single char EXE direct download likely trojan (multiple families)
suricata
Downloads MZ/PE file

Executes dropped EXE 2 IoCs

pid	Process
856	WmuFQtKMYR.exe
1792	sihost.exe

Deletes itself 1 IoCs

pid	Process
1512	cmd.exe

Loads dropped DLL 9 IoCs

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
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

Scheduled Task

pid	Process
1684	schtasks.exe
1164	schtasks.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1808	timeout.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 612 wrote to memory of 856	612	c9661caa38dea46ddd786a2f5fc23706.exe	28
PID 612 wrote to memory of 856	612	c9661caa38dea46ddd786a2f5fc23706.exe	28
PID 612 wrote to memory of 856	612	c9661caa38dea46ddd786a2f5fc23706.exe	28
PID 612 wrote to memory of 856	612	c9661caa38dea46ddd786a2f5fc23706.exe	28
PID 612 wrote to memory of 1512	612	c9661caa38dea46ddd786a2f5fc23706.exe	29
PID 612 wrote to memory of 1512	612	c9661caa38dea46ddd786a2f5fc23706.exe	29
PID 612 wrote to memory of 1512	612	c9661caa38dea46ddd786a2f5fc23706.exe	29
PID 612 wrote to memory of 1512	612	c9661caa38dea46ddd786a2f5fc23706.exe	29
PID 1512 wrote to memory of 1808	1512	cmd.exe	31
PID 1512 wrote to memory of 1808	1512	cmd.exe	31
PID 1512 wrote to memory of 1808	1512	cmd.exe	31
PID 1512 wrote to memory of 1808	1512	cmd.exe	31
PID 856 wrote to memory of 1684	856	WmuFQtKMYR.exe	32
PID 856 wrote to memory of 1684	856	WmuFQtKMYR.exe	32
PID 856 wrote to memory of 1684	856	WmuFQtKMYR.exe	32
PID 856 wrote to memory of 1684	856	WmuFQtKMYR.exe	32
PID 824 wrote to memory of 1792	824	taskeng.exe	35
PID 824 wrote to memory of 1792	824	taskeng.exe	35
PID 824 wrote to memory of 1792	824	taskeng.exe	35
PID 824 wrote to memory of 1792	824	taskeng.exe	35
PID 1792 wrote to memory of 1164	1792	sihost.exe	36
PID 1792 wrote to memory of 1164	1792	sihost.exe	36
PID 1792 wrote to memory of 1164	1792	sihost.exe	36
PID 1792 wrote to memory of 1164	1792	sihost.exe	36

C:\Windows\system32\taskeng.exe
taskeng.exe {E8E43FC8-27AB-4AF1-BCB7-C7E1504EB139} S-1-5-21-3456797065-1076791440-4146276586-1000:JZCKHXIN\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:824
- C:\Users\Admin\AppData\Roaming\Microsoft\Network\sihost.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Network\sihost.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:1792
- - C:\Windows\SysWOW64\schtasks.exe
    /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\sihost.exe"
    3⤵
    - Creates scheduled task(s)
    PID:1164