orcus | ecb3e391ce8ec8e598e4b0353f031e895f038a707d54a42caa93011cbc860d13

Analysis

max time kernel
127s
max time network
123s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
05-12-2024 01:12

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General

Target

ecb3e391ce8ec8e598e4b0353f031e895f038a707d54a42caa93011cbc860d13.exe
Size

3.0MB
MD5

85f6a170cdf61b577203880677cbfa2e
SHA1

c8a3c321a34fa789e6ed85a48c745b25b99ad00c
SHA256

ecb3e391ce8ec8e598e4b0353f031e895f038a707d54a42caa93011cbc860d13
SHA512

aa8637302e6223f7027cbf190d18e352c6daa42ea0427880972fc4bccb3766f7a80005a5bc6accf7b79ea9d28034f65848fdfb6f11a9289e646bb43882dcc974
SSDEEP

49152:ZGX87p1EZKMnkmWg8LX5prviYDyKS5AypQxbRQAo9JnCmpKu/nRFfjI7L0qbm:ZLHTPJg8z1mKnypSbRxo9JCm

Score

10^/10

orcus 5 discovery rat spyware stealer

Malware Config

Extracted

Family

orcus

Botnet

31.44.184.52:10903

Mutex

sudo_kv8pk6zymgjja5xr21f12nkgke5xbmd3

Attributes

autostart_method
Disable
enable_keylogger
false
install_path
%appdata%\dlejavascriptgenerator\linuxvm.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

resource	yara_rule
behavioral1/files/0x0008000000016599-10.dat	family_orcus

Orcurs Rat Executable 11 IoCs

resource	yara_rule
behavioral1/memory/2828-1-0x0000000000A30000-0x0000000000D2E000-memory.dmp	orcus
behavioral1/files/0x0008000000016599-10.dat	orcus
behavioral1/memory/2932-18-0x0000000000160000-0x000000000045E000-memory.dmp	orcus
behavioral1/memory/2976-26-0x0000000000400000-0x00000000006FE000-memory.dmp	orcus
behavioral1/memory/2976-32-0x0000000000400000-0x00000000006FE000-memory.dmp	orcus
behavioral1/memory/2976-31-0x0000000000400000-0x00000000006FE000-memory.dmp	orcus
behavioral1/memory/2976-28-0x0000000000400000-0x00000000006FE000-memory.dmp	orcus
behavioral1/memory/2976-33-0x0000000000400000-0x00000000006FE000-memory.dmp	orcus
behavioral1/memory/1044-37-0x0000000000ED0000-0x00000000011CE000-memory.dmp	orcus
behavioral1/memory/2204-58-0x0000000001060000-0x000000000135E000-memory.dmp	orcus
behavioral1/memory/1540-60-0x00000000010B0000-0x00000000013AE000-memory.dmp	orcus

Executes dropped EXE 4 IoCs

pid	Process
2932	linuxvm.exe
1044	linuxvm.exe
2204	linuxvm.exe
1540	linuxvm.exe

Loads dropped DLL 1 IoCs

pid	Process
2828	ecb3e391ce8ec8e598e4b0353f031e895f038a707d54a42caa93011cbc860d13.exe

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2932 set thread context of 2976	2932	linuxvm.exe	32

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	linuxvm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regasm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	linuxvm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	linuxvm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	linuxvm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ecb3e391ce8ec8e598e4b0353f031e895f038a707d54a42caa93011cbc860d13.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2828	ecb3e391ce8ec8e598e4b0353f031e895f038a707d54a42caa93011cbc860d13.exe
2932	linuxvm.exe
2932	linuxvm.exe
2976	regasm.exe
2976	regasm.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2828	ecb3e391ce8ec8e598e4b0353f031e895f038a707d54a42caa93011cbc860d13.exe
Token: SeDebugPrivilege	2932	linuxvm.exe
Token: SeDebugPrivilege	2976	regasm.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2828 wrote to memory of 2932	2828	ecb3e391ce8ec8e598e4b0353f031e895f038a707d54a42caa93011cbc860d13.exe	30
PID 2828 wrote to memory of 2932	2828	ecb3e391ce8ec8e598e4b0353f031e895f038a707d54a42caa93011cbc860d13.exe	30
PID 2828 wrote to memory of 2932	2828	ecb3e391ce8ec8e598e4b0353f031e895f038a707d54a42caa93011cbc860d13.exe	30
PID 2828 wrote to memory of 2932	2828	ecb3e391ce8ec8e598e4b0353f031e895f038a707d54a42caa93011cbc860d13.exe	30
PID 2932 wrote to memory of 2976	2932	linuxvm.exe	32
PID 2932 wrote to memory of 2976	2932	linuxvm.exe	32
PID 2932 wrote to memory of 2976	2932	linuxvm.exe	32
PID 2932 wrote to memory of 2976	2932	linuxvm.exe	32
PID 2932 wrote to memory of 2976	2932	linuxvm.exe	32
PID 2932 wrote to memory of 2976	2932	linuxvm.exe	32
PID 2932 wrote to memory of 2976	2932	linuxvm.exe	32
PID 2932 wrote to memory of 2976	2932	linuxvm.exe	32
PID 2932 wrote to memory of 2976	2932	linuxvm.exe	32
PID 2932 wrote to memory of 2976	2932	linuxvm.exe	32
PID 2932 wrote to memory of 2976	2932	linuxvm.exe	32
PID 2932 wrote to memory of 2976	2932	linuxvm.exe	32
PID 2792 wrote to memory of 1044	2792	taskeng.exe	33
PID 2792 wrote to memory of 1044	2792	taskeng.exe	33
PID 2792 wrote to memory of 1044	2792	taskeng.exe	33
PID 2792 wrote to memory of 1044	2792	taskeng.exe	33
PID 2792 wrote to memory of 2204	2792	taskeng.exe	36
PID 2792 wrote to memory of 2204	2792	taskeng.exe	36
PID 2792 wrote to memory of 2204	2792	taskeng.exe	36
PID 2792 wrote to memory of 2204	2792	taskeng.exe	36
PID 2792 wrote to memory of 1540	2792	taskeng.exe	37
PID 2792 wrote to memory of 1540	2792	taskeng.exe	37
PID 2792 wrote to memory of 1540	2792	taskeng.exe	37
PID 2792 wrote to memory of 1540	2792	taskeng.exe	37

C:\Users\Admin\AppData\Local\Temp\ecb3e391ce8ec8e598e4b0353f031e895f038a707d54a42caa93011cbc860d13.exe
"C:\Users\Admin\AppData\Local\Temp\ecb3e391ce8ec8e598e4b0353f031e895f038a707d54a42caa93011cbc860d13.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2828
- C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe
  "C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.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:2932
- - 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:2976

C:\Windows\system32\taskeng.exe
taskeng.exe {597B94E7-4048-47CD-867E-7F90DA630675} S-1-5-21-2039016743-699959520-214465309-1000:PIDEURYY\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2792
- C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe
  C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1044
- C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe
  C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2204
- C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe
  C:\Users\Admin\AppData\Roaming\dlejavascriptgenerator\linuxvm.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1540

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Cab73FA.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

Filesize
357B

MD5
a2b76cea3a59fa9af5ea21ff68139c98

SHA1
35d76475e6a54c168f536e30206578babff58274

SHA256
f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

SHA512
b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

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

Filesize
3.0MB

MD5
85f6a170cdf61b577203880677cbfa2e

SHA1
c8a3c321a34fa789e6ed85a48c745b25b99ad00c

SHA256
ecb3e391ce8ec8e598e4b0353f031e895f038a707d54a42caa93011cbc860d13

SHA512
aa8637302e6223f7027cbf190d18e352c6daa42ea0427880972fc4bccb3766f7a80005a5bc6accf7b79ea9d28034f65848fdfb6f11a9289e646bb43882dcc974

Download Submit
memory/1044-37-0x0000000000ED0000-0x00000000011CE000-memory.dmp

Filesize
3.0MB

Download
memory/1540-60-0x00000000010B0000-0x00000000013AE000-memory.dmp

Filesize
3.0MB

Download
memory/2204-58-0x0000000001060000-0x000000000135E000-memory.dmp

Filesize
3.0MB

Download
memory/2828-3-0x0000000074CC0000-0x00000000753AE000-memory.dmp

Filesize
6.9MB

Download
memory/2828-4-0x00000000045A0000-0x00000000045FC000-memory.dmp

Filesize
368KB

Download
memory/2828-5-0x00000000004F0000-0x0000000000502000-memory.dmp

Filesize
72KB

Download
memory/2828-0-0x0000000074CCE000-0x0000000074CCF000-memory.dmp

Filesize
4KB

Download
memory/2828-17-0x0000000074CC0000-0x00000000753AE000-memory.dmp

Filesize
6.9MB

Download
memory/2828-2-0x0000000000340000-0x000000000034E000-memory.dmp

Filesize
56KB

Download
memory/2828-1-0x0000000000A30000-0x0000000000D2E000-memory.dmp

Filesize
3.0MB

Download
memory/2932-18-0x0000000000160000-0x000000000045E000-memory.dmp

Filesize
3.0MB

Download
memory/2932-21-0x00000000048B0000-0x00000000048FE000-memory.dmp

Filesize
312KB

Download
memory/2932-20-0x0000000000CC0000-0x0000000000CD2000-memory.dmp

Filesize
72KB

Download
memory/2932-16-0x0000000074CC0000-0x00000000753AE000-memory.dmp

Filesize
6.9MB

Download
memory/2932-34-0x0000000074CC0000-0x00000000753AE000-memory.dmp

Filesize
6.9MB

Download
memory/2932-19-0x0000000074CC0000-0x00000000753AE000-memory.dmp

Filesize
6.9MB

Download
memory/2976-22-0x0000000000400000-0x00000000006FE000-memory.dmp

Filesize
3.0MB

Download
memory/2976-28-0x0000000000400000-0x00000000006FE000-memory.dmp

Filesize
3.0MB

Download
memory/2976-24-0x0000000000400000-0x00000000006FE000-memory.dmp

Filesize
3.0MB

Download
memory/2976-33-0x0000000000400000-0x00000000006FE000-memory.dmp

Filesize
3.0MB

Download
memory/2976-36-0x0000000000860000-0x0000000000878000-memory.dmp

Filesize
96KB

Download
memory/2976-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2976-38-0x0000000000890000-0x00000000008A0000-memory.dmp

Filesize
64KB

Download
memory/2976-31-0x0000000000400000-0x00000000006FE000-memory.dmp

Filesize
3.0MB

Download
memory/2976-55-0x0000000000DD0000-0x0000000000DDE000-memory.dmp

Filesize
56KB

Download
memory/2976-56-0x0000000000F90000-0x0000000000F92000-memory.dmp

Filesize
8KB

Download
memory/2976-32-0x0000000000400000-0x00000000006FE000-memory.dmp

Filesize
3.0MB

Download
memory/2976-26-0x0000000000400000-0x00000000006FE000-memory.dmp

Filesize
3.0MB

Download