orcus | a0d40ca195ecfebfd36feefb12811ec4dcf3c643cd0658456503bb0f98e788e3

Analysis

max time kernel
94s
max time network
101s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
03-12-2024 18:28

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General

Target

a0d40ca195ecfebfd36feefb12811ec4dcf3c643cd0658456503bb0f98e788e3.exe
Size

3.0MB
MD5

d24b87f97188836791caaa09229fd0e3
SHA1

e911bee049bd97522e888d3075d2e74b06e57d73
SHA256

a0d40ca195ecfebfd36feefb12811ec4dcf3c643cd0658456503bb0f98e788e3
SHA512

b38fb1399f51a0e5e3f1aed34b6d88039e0101262f24559adfe7b2337bbec415fd29af3c3216f1337f834ae65b7199d4ed9a0b20ef68be69e3a5551334bbbc04
SSDEEP

49152:O3X27p1EZKMnkmWg8LX5prviYDyKS5AypQxbRQAo9JnCmpEu/nRFfjI7L0qba:OWHTPJg8z1mKnypSbRxo9JCmR

Score

10^/10

orcus newreborn discovery rat spyware stealer

Malware Config

Extracted

Family

orcus

Botnet

newreborn

31.44.184.52:10903

Mutex

sudo_h7y6k5gabf3ov892gnvzdzpr7kydnery

Attributes

autostart_method
Disable
enable_keylogger
false
install_path
%appdata%\dlejavascriptgenerator\javascripteternal.exe
reconnect_delay
10000
registry_keyname
Sudik
taskscheduler_taskname
sudik
watchdog_path
AppData\aga.exe

Signatures

Orcus
Orcus is a Remote Access Trojan that is being sold on underground forums.
rat spyware stealer orcus
Orcus family
orcus

Orcus main payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/files/0x0007000000023c8b-13.dat	family_orcus

Orcurs Rat Executable 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2020-1-0x0000000000960000-0x0000000000C5E000-memory.dmp	orcus
behavioral2/files/0x0007000000023c8b-13.dat	orcus

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

a0d40ca195ecfebfd36feefb12811ec4dcf3c643cd0658456503bb0f98e788e3.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	a0d40ca195ecfebfd36feefb12811ec4dcf3c643cd0658456503bb0f98e788e3.exe

Executes dropped EXE 5 IoCs

Processes:

javascripteternal.exejavascripteternal.exejavascripteternal.exejavascripteternal.exejavascripteternal.exe

pid	Process
4880	javascripteternal.exe
2312	javascripteternal.exe
3864	javascripteternal.exe
1280	javascripteternal.exe
5100	javascripteternal.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

javascripteternal.exejavascripteternal.exejavascripteternal.exe

description	pid	Process	procid_target
PID 4880 set thread context of 4528	4880	javascripteternal.exe	86
PID 2312 set thread context of 2880	2312	javascripteternal.exe	88
PID 3864 set thread context of 4444	3864	javascripteternal.exe	95

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

javascripteternal.exeregasm.exejavascripteternal.exejavascripteternal.exejavascripteternal.exea0d40ca195ecfebfd36feefb12811ec4dcf3c643cd0658456503bb0f98e788e3.exejavascripteternal.exeregasm.exeinstallutil.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	javascripteternal.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regasm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	javascripteternal.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	javascripteternal.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	javascripteternal.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a0d40ca195ecfebfd36feefb12811ec4dcf3c643cd0658456503bb0f98e788e3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	javascripteternal.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regasm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	installutil.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

Processes:

a0d40ca195ecfebfd36feefb12811ec4dcf3c643cd0658456503bb0f98e788e3.exejavascripteternal.exejavascripteternal.exejavascripteternal.exeregasm.exe

pid	Process
2020	a0d40ca195ecfebfd36feefb12811ec4dcf3c643cd0658456503bb0f98e788e3.exe
4880	javascripteternal.exe
4880	javascripteternal.exe
4880	javascripteternal.exe
4880	javascripteternal.exe
2312	javascripteternal.exe
2312	javascripteternal.exe
3864	javascripteternal.exe
3864	javascripteternal.exe
3864	javascripteternal.exe
3864	javascripteternal.exe
3864	javascripteternal.exe
3864	javascripteternal.exe
3864	javascripteternal.exe
3864	javascripteternal.exe
3864	javascripteternal.exe
3864	javascripteternal.exe
3864	javascripteternal.exe
3864	javascripteternal.exe
4528	regasm.exe
4528	regasm.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

a0d40ca195ecfebfd36feefb12811ec4dcf3c643cd0658456503bb0f98e788e3.exejavascripteternal.exejavascripteternal.exejavascripteternal.exeregasm.exe

description	pid	Process
Token: SeDebugPrivilege	2020	a0d40ca195ecfebfd36feefb12811ec4dcf3c643cd0658456503bb0f98e788e3.exe
Token: SeDebugPrivilege	4880	javascripteternal.exe
Token: SeDebugPrivilege	2312	javascripteternal.exe
Token: SeDebugPrivilege	3864	javascripteternal.exe
Token: SeDebugPrivilege	4528	regasm.exe

Suspicious use of WriteProcessMemory 45 IoCs

Processes:

a0d40ca195ecfebfd36feefb12811ec4dcf3c643cd0658456503bb0f98e788e3.exejavascripteternal.exejavascripteternal.exejavascripteternal.exe

description	pid	Process	procid_target
PID 2020 wrote to memory of 4880	2020	a0d40ca195ecfebfd36feefb12811ec4dcf3c643cd0658456503bb0f98e788e3.exe	83
PID 2020 wrote to memory of 4880	2020	a0d40ca195ecfebfd36feefb12811ec4dcf3c643cd0658456503bb0f98e788e3.exe	83
PID 2020 wrote to memory of 4880	2020	a0d40ca195ecfebfd36feefb12811ec4dcf3c643cd0658456503bb0f98e788e3.exe	83
PID 4880 wrote to memory of 5108	4880	javascripteternal.exe	85
PID 4880 wrote to memory of 5108	4880	javascripteternal.exe	85
PID 4880 wrote to memory of 5108	4880	javascripteternal.exe	85
PID 4880 wrote to memory of 4528	4880	javascripteternal.exe	86
PID 4880 wrote to memory of 4528	4880	javascripteternal.exe	86
PID 4880 wrote to memory of 4528	4880	javascripteternal.exe	86
PID 4880 wrote to memory of 4528	4880	javascripteternal.exe	86
PID 4880 wrote to memory of 4528	4880	javascripteternal.exe	86
PID 4880 wrote to memory of 4528	4880	javascripteternal.exe	86
PID 4880 wrote to memory of 4528	4880	javascripteternal.exe	86
PID 4880 wrote to memory of 4528	4880	javascripteternal.exe	86
PID 2312 wrote to memory of 2880	2312	javascripteternal.exe	88
PID 2312 wrote to memory of 2880	2312	javascripteternal.exe	88
PID 2312 wrote to memory of 2880	2312	javascripteternal.exe	88
PID 2312 wrote to memory of 2880	2312	javascripteternal.exe	88
PID 2312 wrote to memory of 2880	2312	javascripteternal.exe	88
PID 2312 wrote to memory of 2880	2312	javascripteternal.exe	88
PID 2312 wrote to memory of 2880	2312	javascripteternal.exe	88
PID 2312 wrote to memory of 2880	2312	javascripteternal.exe	88
PID 3864 wrote to memory of 2980	3864	javascripteternal.exe	90
PID 3864 wrote to memory of 2980	3864	javascripteternal.exe	90
PID 3864 wrote to memory of 2980	3864	javascripteternal.exe	90
PID 3864 wrote to memory of 400	3864	javascripteternal.exe	91
PID 3864 wrote to memory of 400	3864	javascripteternal.exe	91
PID 3864 wrote to memory of 400	3864	javascripteternal.exe	91
PID 3864 wrote to memory of 4724	3864	javascripteternal.exe	92
PID 3864 wrote to memory of 4724	3864	javascripteternal.exe	92
PID 3864 wrote to memory of 4724	3864	javascripteternal.exe	92
PID 3864 wrote to memory of 4612	3864	javascripteternal.exe	93
PID 3864 wrote to memory of 4612	3864	javascripteternal.exe	93
PID 3864 wrote to memory of 4612	3864	javascripteternal.exe	93
PID 3864 wrote to memory of 3596	3864	javascripteternal.exe	94
PID 3864 wrote to memory of 3596	3864	javascripteternal.exe	94
PID 3864 wrote to memory of 3596	3864	javascripteternal.exe	94
PID 3864 wrote to memory of 4444	3864	javascripteternal.exe	95
PID 3864 wrote to memory of 4444	3864	javascripteternal.exe	95
PID 3864 wrote to memory of 4444	3864	javascripteternal.exe	95
PID 3864 wrote to memory of 4444	3864	javascripteternal.exe	95
PID 3864 wrote to memory of 4444	3864	javascripteternal.exe	95
PID 3864 wrote to memory of 4444	3864	javascripteternal.exe	95
PID 3864 wrote to memory of 4444	3864	javascripteternal.exe	95
PID 3864 wrote to memory of 4444	3864	javascripteternal.exe	95

C:\Users\Admin\AppData\Local\Temp\a0d40ca195ecfebfd36feefb12811ec4dcf3c643cd0658456503bb0f98e788e3.exe
"C:\Users\Admin\AppData\Local\Temp\a0d40ca195ecfebfd36feefb12811ec4dcf3c643cd0658456503bb0f98e788e3.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2020
- C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\javascripteternal.exe
  "C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\javascripteternal.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4880
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
    3⤵
    PID:5108
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4528

C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\javascripteternal.exe
C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\javascripteternal.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2312
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2880

C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\javascripteternal.exe
C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\javascripteternal.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3864
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
  2⤵
  PID:2980
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
  2⤵
  PID:400
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
  2⤵
  PID:4724
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
  2⤵
  PID:4612
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
  2⤵
  PID:3596
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4444

C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\javascripteternal.exe
C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\javascripteternal.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1280

C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\javascripteternal.exe
C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\javascripteternal.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:5100

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\javascripteternal.exe.log

Filesize
1KB

MD5
663b8d5469caa4489d463aa9bc18124f

SHA1
e57123a7d969115853ea631a3b33826335025d28

SHA256
7b4fa505452f0b8ac74bb31f5a03b13342836318018fb18d224ae2ff11b1a7e8

SHA512
45e373295125a629fcc0b19609608d969c9106514918bfac5d6b8e340e407434577b825741b8fa6a043c8f3f5c1a030ba8857da5f4e8ef15a551ce3c5fe03b55

Download Submit
C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\javascripteternal.exe

Filesize
3.0MB

MD5
d24b87f97188836791caaa09229fd0e3

SHA1
e911bee049bd97522e888d3075d2e74b06e57d73

SHA256
a0d40ca195ecfebfd36feefb12811ec4dcf3c643cd0658456503bb0f98e788e3

SHA512
b38fb1399f51a0e5e3f1aed34b6d88039e0101262f24559adfe7b2337bbec415fd29af3c3216f1337f834ae65b7199d4ed9a0b20ef68be69e3a5551334bbbc04

Download Submit
C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\javascripteternal.exe.config

Filesize
357B

MD5
a2b76cea3a59fa9af5ea21ff68139c98

SHA1
35d76475e6a54c168f536e30206578babff58274

SHA256
f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

SHA512
b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

Download Submit
memory/2020-3-0x0000000005710000-0x000000000576C000-memory.dmp

Filesize
368KB

Download
memory/2020-4-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download
memory/2020-5-0x0000000005F30000-0x00000000064D4000-memory.dmp

Filesize
5.6MB

Download
memory/2020-6-0x0000000005A20000-0x0000000005AB2000-memory.dmp

Filesize
584KB

Download
memory/2020-7-0x0000000005960000-0x0000000005972000-memory.dmp

Filesize
72KB

Download
memory/2020-2-0x00000000030F0000-0x00000000030FE000-memory.dmp

Filesize
56KB

Download
memory/2020-0-0x0000000074D5E000-0x0000000074D5F000-memory.dmp

Filesize
4KB

Download
memory/2020-23-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download
memory/2020-1-0x0000000000960000-0x0000000000C5E000-memory.dmp

Filesize
3.0MB

Download
memory/2312-30-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download
memory/2312-38-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download
memory/2312-34-0x00000000051D0000-0x00000000051E2000-memory.dmp

Filesize
72KB

Download
memory/4528-41-0x00000000059F0000-0x0000000005A08000-memory.dmp

Filesize
96KB

Download
memory/4528-48-0x0000000007AF0000-0x0000000008108000-memory.dmp

Filesize
6.1MB

Download
memory/4528-54-0x0000000008110000-0x00000000082D2000-memory.dmp

Filesize
1.8MB

Download
memory/4528-52-0x0000000007730000-0x000000000783A000-memory.dmp

Filesize
1.0MB

Download
memory/4528-51-0x00000000075A0000-0x00000000075EC000-memory.dmp

Filesize
304KB

Download
memory/4528-50-0x0000000007560000-0x000000000759C000-memory.dmp

Filesize
240KB

Download
memory/4528-49-0x0000000007500000-0x0000000007512000-memory.dmp

Filesize
72KB

Download
memory/4528-42-0x0000000006810000-0x0000000006820000-memory.dmp

Filesize
64KB

Download
memory/4528-43-0x0000000006B50000-0x0000000006B5A000-memory.dmp

Filesize
40KB

Download
memory/4528-46-0x0000000007460000-0x00000000074C6000-memory.dmp

Filesize
408KB

Download
memory/4880-29-0x0000000006740000-0x00000000067DC000-memory.dmp

Filesize
624KB

Download
memory/4880-24-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download
memory/4880-25-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download
memory/4880-26-0x0000000005800000-0x0000000005812000-memory.dmp

Filesize
72KB

Download
memory/4880-27-0x0000000005DE0000-0x0000000005E2E000-memory.dmp

Filesize
312KB

Download
memory/4880-33-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download