orcus | a0d40ca195ecfebfd36feefb12811ec4dcf3c643cd0658456503bb0f98e788e3

Analysis

max time kernel
117s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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
behavioral1/files/0x000700000001945b-10.dat	family_orcus

Orcurs Rat Executable 9 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1956-1-0x0000000001140000-0x000000000143E000-memory.dmp	orcus
behavioral1/files/0x000700000001945b-10.dat	orcus
behavioral1/memory/2520-17-0x00000000000E0000-0x00000000003DE000-memory.dmp	orcus
behavioral1/memory/2688-32-0x0000000000400000-0x00000000006FE000-memory.dmp	orcus
behavioral1/memory/2688-33-0x0000000000400000-0x00000000006FE000-memory.dmp	orcus
behavioral1/memory/2688-28-0x0000000000400000-0x00000000006FE000-memory.dmp	orcus
behavioral1/memory/2688-26-0x0000000000400000-0x00000000006FE000-memory.dmp	orcus
behavioral1/memory/2688-31-0x0000000000400000-0x00000000006FE000-memory.dmp	orcus
behavioral1/memory/1580-67-0x0000000000F30000-0x000000000122E000-memory.dmp	orcus

Executes dropped EXE 3 IoCs

Processes:

javascripteternal.exejavascripteternal.exejavascripteternal.exe

pid	Process
2520	javascripteternal.exe
2828	javascripteternal.exe
1580	javascripteternal.exe

Loads dropped DLL 1 IoCs

Processes:

a0d40ca195ecfebfd36feefb12811ec4dcf3c643cd0658456503bb0f98e788e3.exe

pid	Process
1956	a0d40ca195ecfebfd36feefb12811ec4dcf3c643cd0658456503bb0f98e788e3.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

javascripteternal.exejavascripteternal.exe

description	pid	Process	procid_target
PID 2520 set thread context of 2688	2520	javascripteternal.exe	32
PID 2828 set thread context of 2636	2828	javascripteternal.exe	36

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 6 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.exemsbuild.exeinstallutil.exejavascripteternal.exea0d40ca195ecfebfd36feefb12811ec4dcf3c643cd0658456503bb0f98e788e3.exejavascripteternal.exe

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

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

a0d40ca195ecfebfd36feefb12811ec4dcf3c643cd0658456503bb0f98e788e3.exejavascripteternal.exejavascripteternal.exeinstallutil.exe

pid	Process
1956	a0d40ca195ecfebfd36feefb12811ec4dcf3c643cd0658456503bb0f98e788e3.exe
2520	javascripteternal.exe
2520	javascripteternal.exe
2828	javascripteternal.exe
2828	javascripteternal.exe
2828	javascripteternal.exe
2828	javascripteternal.exe
2636	installutil.exe
2636	installutil.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

a0d40ca195ecfebfd36feefb12811ec4dcf3c643cd0658456503bb0f98e788e3.exejavascripteternal.exejavascripteternal.exeinstallutil.exe

description	pid	Process
Token: SeDebugPrivilege	1956	a0d40ca195ecfebfd36feefb12811ec4dcf3c643cd0658456503bb0f98e788e3.exe
Token: SeDebugPrivilege	2520	javascripteternal.exe
Token: SeDebugPrivilege	2828	javascripteternal.exe
Token: SeDebugPrivilege	2636	installutil.exe

Suspicious use of WriteProcessMemory 40 IoCs

Processes:

a0d40ca195ecfebfd36feefb12811ec4dcf3c643cd0658456503bb0f98e788e3.exetaskeng.exejavascripteternal.exejavascripteternal.exe

description	pid	Process	procid_target
PID 1956 wrote to memory of 2520	1956	a0d40ca195ecfebfd36feefb12811ec4dcf3c643cd0658456503bb0f98e788e3.exe	30
PID 1956 wrote to memory of 2520	1956	a0d40ca195ecfebfd36feefb12811ec4dcf3c643cd0658456503bb0f98e788e3.exe	30
PID 1956 wrote to memory of 2520	1956	a0d40ca195ecfebfd36feefb12811ec4dcf3c643cd0658456503bb0f98e788e3.exe	30
PID 1956 wrote to memory of 2520	1956	a0d40ca195ecfebfd36feefb12811ec4dcf3c643cd0658456503bb0f98e788e3.exe	30
PID 628 wrote to memory of 2828	628	taskeng.exe	33
PID 628 wrote to memory of 2828	628	taskeng.exe	33
PID 628 wrote to memory of 2828	628	taskeng.exe	33
PID 628 wrote to memory of 2828	628	taskeng.exe	33
PID 2520 wrote to memory of 2688	2520	javascripteternal.exe	32
PID 2520 wrote to memory of 2688	2520	javascripteternal.exe	32
PID 2520 wrote to memory of 2688	2520	javascripteternal.exe	32
PID 2520 wrote to memory of 2688	2520	javascripteternal.exe	32
PID 2520 wrote to memory of 2688	2520	javascripteternal.exe	32
PID 2520 wrote to memory of 2688	2520	javascripteternal.exe	32
PID 2520 wrote to memory of 2688	2520	javascripteternal.exe	32
PID 2520 wrote to memory of 2688	2520	javascripteternal.exe	32
PID 2520 wrote to memory of 2688	2520	javascripteternal.exe	32
PID 2828 wrote to memory of 2616	2828	javascripteternal.exe	35
PID 2828 wrote to memory of 2616	2828	javascripteternal.exe	35
PID 2828 wrote to memory of 2616	2828	javascripteternal.exe	35
PID 2828 wrote to memory of 2616	2828	javascripteternal.exe	35
PID 2828 wrote to memory of 2616	2828	javascripteternal.exe	35
PID 2828 wrote to memory of 2616	2828	javascripteternal.exe	35
PID 2828 wrote to memory of 2616	2828	javascripteternal.exe	35
PID 2828 wrote to memory of 2636	2828	javascripteternal.exe	36
PID 2828 wrote to memory of 2636	2828	javascripteternal.exe	36
PID 2828 wrote to memory of 2636	2828	javascripteternal.exe	36
PID 2828 wrote to memory of 2636	2828	javascripteternal.exe	36
PID 2828 wrote to memory of 2636	2828	javascripteternal.exe	36
PID 2828 wrote to memory of 2636	2828	javascripteternal.exe	36
PID 2828 wrote to memory of 2636	2828	javascripteternal.exe	36
PID 2828 wrote to memory of 2636	2828	javascripteternal.exe	36
PID 2828 wrote to memory of 2636	2828	javascripteternal.exe	36
PID 2828 wrote to memory of 2636	2828	javascripteternal.exe	36
PID 2828 wrote to memory of 2636	2828	javascripteternal.exe	36
PID 2828 wrote to memory of 2636	2828	javascripteternal.exe	36
PID 628 wrote to memory of 1580	628	taskeng.exe	38
PID 628 wrote to memory of 1580	628	taskeng.exe	38
PID 628 wrote to memory of 1580	628	taskeng.exe	38
PID 628 wrote to memory of 1580	628	taskeng.exe	38

C:\Users\Admin\AppData\Local\Temp\a0d40ca195ecfebfd36feefb12811ec4dcf3c643cd0658456503bb0f98e788e3.exe
"C:\Users\Admin\AppData\Local\Temp\a0d40ca195ecfebfd36feefb12811ec4dcf3c643cd0658456503bb0f98e788e3.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1956
- 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:2520
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2688

C:\Windows\system32\taskeng.exe
taskeng.exe {FDA06FE5-23C8-4E2D-9850-62F55B77FD37} S-1-5-21-1488793075-819845221-1497111674-1000:UPNECVIU\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:628
- 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:2828
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"
    3⤵
    PID:2616
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2636
- C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\javascripteternal.exe
  C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\javascripteternal.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1580

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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\Temp\CabECD1.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

Filesize
357B

MD5
a2b76cea3a59fa9af5ea21ff68139c98

SHA1
35d76475e6a54c168f536e30206578babff58274

SHA256
f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

SHA512
b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

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

Filesize
3.0MB

MD5
d24b87f97188836791caaa09229fd0e3

SHA1
e911bee049bd97522e888d3075d2e74b06e57d73

SHA256
a0d40ca195ecfebfd36feefb12811ec4dcf3c643cd0658456503bb0f98e788e3

SHA512
b38fb1399f51a0e5e3f1aed34b6d88039e0101262f24559adfe7b2337bbec415fd29af3c3216f1337f834ae65b7199d4ed9a0b20ef68be69e3a5551334bbbc04

Download Submit
memory/1580-67-0x0000000000F30000-0x000000000122E000-memory.dmp

Filesize
3.0MB

Download
memory/1956-1-0x0000000001140000-0x000000000143E000-memory.dmp

Filesize
3.0MB

Download
memory/1956-2-0x0000000000280000-0x000000000028E000-memory.dmp

Filesize
56KB

Download
memory/1956-3-0x0000000074870000-0x0000000074F5E000-memory.dmp

Filesize
6.9MB

Download
memory/1956-4-0x00000000006D0000-0x000000000072C000-memory.dmp

Filesize
368KB

Download
memory/1956-5-0x00000000003D0000-0x00000000003E2000-memory.dmp

Filesize
72KB

Download
memory/1956-0-0x000000007487E000-0x000000007487F000-memory.dmp

Filesize
4KB

Download
memory/1956-16-0x0000000074870000-0x0000000074F5E000-memory.dmp

Filesize
6.9MB

Download
memory/2520-34-0x0000000074870000-0x0000000074F5E000-memory.dmp

Filesize
6.9MB

Download
memory/2520-18-0x0000000074870000-0x0000000074F5E000-memory.dmp

Filesize
6.9MB

Download
memory/2520-17-0x00000000000E0000-0x00000000003DE000-memory.dmp

Filesize
3.0MB

Download
memory/2520-19-0x0000000074870000-0x0000000074F5E000-memory.dmp

Filesize
6.9MB

Download
memory/2520-20-0x0000000000980000-0x00000000009CE000-memory.dmp

Filesize
312KB

Download
memory/2636-49-0x0000000000E40000-0x0000000000E50000-memory.dmp

Filesize
64KB

Download
memory/2636-48-0x00000000009B0000-0x00000000009C8000-memory.dmp

Filesize
96KB

Download
memory/2636-44-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2688-26-0x0000000000400000-0x00000000006FE000-memory.dmp

Filesize
3.0MB

Download
memory/2688-22-0x0000000000400000-0x00000000006FE000-memory.dmp

Filesize
3.0MB

Download
memory/2688-30-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2688-31-0x0000000000400000-0x00000000006FE000-memory.dmp

Filesize
3.0MB

Download
memory/2688-24-0x0000000000400000-0x00000000006FE000-memory.dmp

Filesize
3.0MB

Download
memory/2688-28-0x0000000000400000-0x00000000006FE000-memory.dmp

Filesize
3.0MB

Download
memory/2688-33-0x0000000000400000-0x00000000006FE000-memory.dmp

Filesize
3.0MB

Download
memory/2688-32-0x0000000000400000-0x00000000006FE000-memory.dmp

Filesize
3.0MB

Download
memory/2828-35-0x00000000007E0000-0x00000000007F2000-memory.dmp

Filesize
72KB

Download