Analysis
- max time kernel
150s - max time network
116s - platform
windows10_x64 - resource
win10-en-20210920 - submitted
02/10/2021, 02:52
General
- Target d6089eb2fed51a598931406cea4dff1e.exe
- Size 265KB
- Sample211002-dcq8csdfam
- SHA256 6adc8d4b4b2bd38d13e1f41511154a396eee1ef8232e456000cc18936feb9d41
Malware Config
Extracted
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smokeloader
-
2020
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http://fiskahlilian16.top/
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http://paishancho17.top/
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http://ydiannetter18.top/
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http://azarehanelle19.top/
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http://quericeriant20.top/
Extracted
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raccoon
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�ru2AC�^�����wL,Q֎�B��Mc1/`�`�1K�:�y�
-
url4cnc
�cb{K^�WXP�۸��fB:O�٩ϥ6=q!�(�p�2�d��oqix����7�W��e�gV�� ����1 ���J2�탾ݭ�
Extracted
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raccoon
-
5ff0ccb2bc00dc52d1ad09949e9c7663bc9ca4d4
-
url4cnc
https://t.me/agrybirdsgamerept
Signatures
- Raccoon
Simple but powerful infostealer which was very active in 2019.
- SmokeLoader
Modular backdoor trojan in use since 2014.
- suricata: ET MALWARE Sharik/Smoke CnC Beacon 11
suricata: ET MALWARE Sharik/Smoke CnC Beacon 11
- suricata: ET MALWARE Win32.Raccoon Stealer CnC Activity (dependency download)
suricata: ET MALWARE Win32.Raccoon Stealer CnC Activity (dependency download)
- suricata: ET MALWARE Win32.Raccoon Stealer Data Exfil Attempt
suricata: ET MALWARE Win32.Raccoon Stealer Data Exfil Attempt
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
- Downloads MZ/PE file
- Executes dropped EXE 3 IoCs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Deletes itself 1 IoCs
- Loads dropped DLL 11 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.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Themida packer 2 IoCs
Detects Themida, an advanced Windows software protection system.
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
- Delays execution with timeout.exe 2 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 29 IoCs
- Suspicious use of WriteProcessMemory 27 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\d6089eb2fed51a598931406cea4dff1e.exe"C:\Users\Admin\AppData\Local\Temp\d6089eb2fed51a598931406cea4dff1e.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\d6089eb2fed51a598931406cea4dff1e.exe"C:\Users\Admin\AppData\Local\Temp\d6089eb2fed51a598931406cea4dff1e.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
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C:\Users\Admin\AppData\Local\Temp\EA37.exeC:\Users\Admin\AppData\Local\Temp\EA37.exe1⤵
- Executes dropped EXE
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
-
C:\Users\Admin\AppData\Local\Temp\EBFD.exeC:\Users\Admin\AppData\Local\Temp\EBFD.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.execmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\EBFD.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\timeout.exetimeout /T 10 /NOBREAK3⤵
- Delays execution with timeout.exe
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-
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C:\Users\Admin\AppData\Local\Temp\EF2A.exeC:\Users\Admin\AppData\Local\Temp\EF2A.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.execmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\EF2A.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\timeout.exetimeout /T 10 /NOBREAK3⤵
- Delays execution with timeout.exe
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1864-138-0x0000000000400000-0x00000000008B0000-memory.dmp
memory/1864-137-0x00000000008B0000-0x00000000009FA000-memory.dmp
memory/2568-115-0x0000000000030000-0x0000000000039000-memory.dmp
memory/2696-116-0x0000000000400000-0x0000000000409000-memory.dmp
memory/3028-118-0x0000000000C90000-0x0000000000CA5000-memory.dmp
memory/3664-136-0x0000000005510000-0x0000000005511000-memory.dmp
memory/3664-156-0x0000000007830000-0x0000000007831000-memory.dmp
memory/3664-165-0x0000000008230000-0x0000000008231000-memory.dmp
memory/3664-125-0x00000000771D0000-0x000000007735E000-memory.dmp
memory/3664-135-0x00000000054B0000-0x00000000054B1000-memory.dmp
memory/3664-134-0x0000000005470000-0x0000000005471000-memory.dmp
memory/3664-133-0x0000000005630000-0x0000000005631000-memory.dmp
memory/3664-132-0x0000000005410000-0x0000000005411000-memory.dmp
memory/3664-131-0x0000000005B30000-0x0000000005B31000-memory.dmp
memory/3664-154-0x0000000006C00000-0x0000000006C01000-memory.dmp
memory/3664-155-0x0000000007300000-0x0000000007301000-memory.dmp
memory/3664-163-0x0000000007000000-0x0000000007001000-memory.dmp
memory/3664-157-0x0000000006DD0000-0x0000000006DD1000-memory.dmp
memory/3664-158-0x0000000006EF0000-0x0000000006EF1000-memory.dmp
memory/3664-159-0x0000000006E90000-0x0000000006E91000-memory.dmp
memory/3664-126-0x0000000000190000-0x0000000000191000-memory.dmp
memory/3960-140-0x0000000000400000-0x00000000008B1000-memory.dmp
memory/3960-139-0x00000000008C0000-0x0000000000A0A000-memory.dmp