orcus | bdca302a43dfd30f874ce13b2a20f4211e7bd88eba40a0c41f30873389133d3d

General

Target

75e95a530e5fe926bcca7c2c1a008e18.exe
Size

789KB
MD5

75e95a530e5fe926bcca7c2c1a008e18
SHA1

ff759b9abdd18c05b51509f92146a801f3fae939
SHA256

bdca302a43dfd30f874ce13b2a20f4211e7bd88eba40a0c41f30873389133d3d
SHA512

ad2cc5878b248cda26e5464dea496ea67ddd9bdf120c56dceee2581a167ae0771d19b68c19b62f4c487d045b0680c7d3892ba8aa99023e93b6391ea8d49821da
SSDEEP

24576:eUM7cLQ/K+2KnKNrk/eXIXVXSOUKoNsxcv3:eb7c1NLEVXSOLoew

Score

10^/10

orcus $evasion rat spyware stealer trojan

Malware Config

Extracted

Family

orcus

Botnet

$

C2

lsdw.dyndns.org:10134

Mutex

bad69595827c48b5b9b2ea99aaff68b6

Attributes

autostart_method
Disable
enable_keylogger
true
install_path
%programfiles%\Orcus\Orcus.exe
reconnect_delay
10000
registry_keyname
Orcus
taskscheduler_taskname
Orcus
watchdog_path
AppData\OrcusWatchdog.exe

Signatures

Orcus
Orcus is a Remote Access Trojan that is being sold on underground forums.
rat spyware stealer orcus
UAC bypass 3 TTPs 1 IoCs
evasion trojan

Bypass User Account Control
T1548.002

Disable or Modify Tools
T1562.001

Modify Registry
T1112

Processes:

mydoc.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" mydoc.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	mydoc.exe

Orcurs Rat Executable 2 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2176-18-0x0000000004F70000-0x0000000005052000-memory.dmp	orcus
behavioral1/memory/2176-17-0x0000000004F70000-0x0000000005058000-memory.dmp	orcus

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

mydoc.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	mydoc.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	mydoc.exe

Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exe

pid process

2892 schtasks.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

75e95a530e5fe926bcca7c2c1a008e18.exemydoc.exe

pid process

2936 75e95a530e5fe926bcca7c2c1a008e18.exe
2936 75e95a530e5fe926bcca7c2c1a008e18.exe
2176 mydoc.exe
2176 mydoc.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

75e95a530e5fe926bcca7c2c1a008e18.exe

pid process

2936 75e95a530e5fe926bcca7c2c1a008e18.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

75e95a530e5fe926bcca7c2c1a008e18.exemydoc.exe

description pid process

Token: SeDebugPrivilege 2936 75e95a530e5fe926bcca7c2c1a008e18.exe
Token: SeDebugPrivilege 2176 mydoc.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

mydoc.exe

pid process

2176 mydoc.exe

pid	process
2892	schtasks.exe

pid	process
2936	75e95a530e5fe926bcca7c2c1a008e18.exe
2936	75e95a530e5fe926bcca7c2c1a008e18.exe
2176	mydoc.exe
2176	mydoc.exe

pid	process
2936	75e95a530e5fe926bcca7c2c1a008e18.exe

description	pid	process
Token: SeDebugPrivilege	2936	75e95a530e5fe926bcca7c2c1a008e18.exe
Token: SeDebugPrivilege	2176	mydoc.exe

pid	process
2176	mydoc.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

75e95a530e5fe926bcca7c2c1a008e18.execmd.exemydoc.execmd.execmd.exe

description	pid	process	target process
PID 2936 wrote to memory of 3064	2936	75e95a530e5fe926bcca7c2c1a008e18.exe	cmd.exe
PID 2936 wrote to memory of 3064	2936	75e95a530e5fe926bcca7c2c1a008e18.exe	cmd.exe
PID 2936 wrote to memory of 3064	2936	75e95a530e5fe926bcca7c2c1a008e18.exe	cmd.exe
PID 2936 wrote to memory of 3064	2936	75e95a530e5fe926bcca7c2c1a008e18.exe	cmd.exe
PID 3064 wrote to memory of 2176	3064	cmd.exe	mydoc.exe
PID 3064 wrote to memory of 2176	3064	cmd.exe	mydoc.exe
PID 3064 wrote to memory of 2176	3064	cmd.exe	mydoc.exe
PID 3064 wrote to memory of 2176	3064	cmd.exe	mydoc.exe
PID 2176 wrote to memory of 2612	2176	mydoc.exe	cmd.exe
PID 2176 wrote to memory of 2612	2176	mydoc.exe	cmd.exe
PID 2176 wrote to memory of 2612	2176	mydoc.exe	cmd.exe
PID 2176 wrote to memory of 2612	2176	mydoc.exe	cmd.exe
PID 2612 wrote to memory of 2672	2612	cmd.exe	schtasks.exe
PID 2612 wrote to memory of 2672	2612	cmd.exe	schtasks.exe
PID 2612 wrote to memory of 2672	2612	cmd.exe	schtasks.exe
PID 2612 wrote to memory of 2672	2612	cmd.exe	schtasks.exe
PID 2176 wrote to memory of 2748	2176	mydoc.exe	cmd.exe
PID 2176 wrote to memory of 2748	2176	mydoc.exe	cmd.exe
PID 2176 wrote to memory of 2748	2176	mydoc.exe	cmd.exe
PID 2176 wrote to memory of 2748	2176	mydoc.exe	cmd.exe
PID 2748 wrote to memory of 2892	2748	cmd.exe	schtasks.exe
PID 2748 wrote to memory of 2892	2748	cmd.exe	schtasks.exe
PID 2748 wrote to memory of 2892	2748	cmd.exe	schtasks.exe
PID 2748 wrote to memory of 2892	2748	cmd.exe	schtasks.exe

System policy modification 1 TTPs 1 IoCs
evasion

Modify Registry
T1112

Processes:

mydoc.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" mydoc.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	mydoc.exe

C:\Users\Admin\AppData\Local\Temp\75e95a530e5fe926bcca7c2c1a008e18.exe
"C:\Users\Admin\AppData\Local\Temp\75e95a530e5fe926bcca7c2c1a008e18.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2936

C:\Windows\SysWOW64\cmd.exe
"cmd"
2⤵
- Suspicious use of WriteProcessMemory
PID:3064

C:\Users\Admin\Videos\show\mydoc.exe
"C:\Users\Admin\Videos\show\mydoc.exe"
3⤵
- UAC bypass
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
PID:2176

C:\Windows\SysWOW64\schtasks.exe
schtasks.exe /Create /TN "Update\doc" /XML "C:\Users\Admin\AppData\Local\Temp\1023345752.xml"
1⤵
- Creates scheduled task(s)
PID:2892

C:\Windows\SysWOW64\cmd.exe
"cmd"
1⤵
- Suspicious use of WriteProcessMemory
PID:2748

C:\Windows\SysWOW64\schtasks.exe
schtasks.exe /Delete /TN "Update\doc" /F
1⤵
PID:2672

C:\Windows\SysWOW64\cmd.exe
"cmd"
1⤵
- Suspicious use of WriteProcessMemory
PID:2612

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

Scheduled Task/Job

Defense Evasion

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Impair Defenses

1

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\1023345752.xml
Filesize
1KB

MD5
504faf2eec3da638def3d5d29af63d3b

SHA1
24691548689fadcf6f865af9c02884bdf9e9d181

SHA256
e8b2c6e06485746ebfec64819bd85f3bd578e4144d17548624b65544a52b85e0

SHA512
63f0c9f260c24bfdfac24bd8cc46e3d370d80172bae44314361cfe143f574d5e6aaeaafc25c2104fdc03490de7eef7a0ca99419ad68691b400b67a1cd436b99e

Download Submit
memory/2176-22-0x00000000004E0000-0x00000000004F2000-memory.dmp

Filesize
72KB

Download
memory/2176-25-0x00000000747B0000-0x0000000074E9E000-memory.dmp

Filesize
6.9MB

Download
memory/2176-20-0x0000000000460000-0x000000000046E000-memory.dmp

Filesize
56KB

Download
memory/2176-21-0x0000000000B80000-0x0000000000BDC000-memory.dmp

Filesize
368KB

Download
memory/2176-11-0x0000000004B20000-0x0000000004B60000-memory.dmp

Filesize
256KB

Download
memory/2176-10-0x0000000000D00000-0x0000000000DB2000-memory.dmp

Filesize
712KB

Download
memory/2176-9-0x00000000747B0000-0x0000000074E9E000-memory.dmp

Filesize
6.9MB

Download
memory/2176-24-0x0000000000AB0000-0x0000000000AC0000-memory.dmp

Filesize
64KB

Download
memory/2176-23-0x00000000009C0000-0x00000000009D8000-memory.dmp

Filesize
96KB

Download
memory/2176-18-0x0000000004F70000-0x0000000005052000-memory.dmp

Filesize
904KB

Download
memory/2176-17-0x0000000004F70000-0x0000000005058000-memory.dmp

Filesize
928KB

Download
memory/2936-2-0x0000000004970000-0x0000000004A22000-memory.dmp

Filesize
712KB

Download
memory/2936-3-0x0000000006FE0000-0x000000000709A000-memory.dmp

Filesize
744KB

Download
memory/2936-1-0x00000000747B0000-0x0000000074E9E000-memory.dmp

Filesize
6.9MB

Download
memory/2936-0-0x0000000000DB0000-0x0000000000E7A000-memory.dmp

Filesize
808KB

Download
memory/2936-8-0x00000000747B0000-0x0000000074E9E000-memory.dmp

Filesize
6.9MB

Download
memory/2936-6-0x0000000000900000-0x0000000000904000-memory.dmp

Filesize
16KB

Download
memory/2936-5-0x0000000000900000-0x000000000090A000-memory.dmp

Filesize
40KB

Download
memory/2936-4-0x0000000004AC0000-0x0000000004B00000-memory.dmp

Filesize
256KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads