orcus | 9162035bdf58571f4addb781f7501a55337a2437c0022e0cb5cf9f0162bcf8f2

Analysis

max time kernel
151s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
18/09/2022, 18:04

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General

Target

HEUR-Trojan-Spy.MSIL.Generic-9162035bdf58571f4addb781f7501a55337a2437c0022e0cb5cf9f0162bcf8f2.exe
Size

908KB
MD5

f1e4a04ced6ac22acfbe73b93cfa55a0
SHA1

ef35307d8850052c45827d4873abd98d79906deb
SHA256

9162035bdf58571f4addb781f7501a55337a2437c0022e0cb5cf9f0162bcf8f2
SHA512

062a3de317f9515da294e54b82d0b039959784e12cbdb20553e62ab455c63821105342f3455dc7df42dbabae8c5a9a6b2e426784b6f67af07be3822bcb222063
SSDEEP

24576:Wqd4MROxnFj30xXFHXRrZlI0AilFEvxHiln:WqqMi1sRhrZlI0AilFEvxHi

Score

10^/10

orcus persistence rat spyware stealer

Malware Config

Extracted

Family

orcus

78.198.121.158:5555

Mutex

e37b97020fdb47e0a5bc491e6c25e4bc

Attributes

autostart_method
Registry
enable_keylogger
false
install_path
%programfiles%\proxy\svchost.exe
reconnect_delay
10000
registry_keyname
windows proxy
taskscheduler_taskname
Orcus
watchdog_path
Temp\svchost32.exe

Signatures

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

Orcus main payload 3 IoCs

resource	yara_rule
behavioral2/files/0x0007000000022e39-141.dat	family_orcus
behavioral2/files/0x0007000000022e39-143.dat	family_orcus
behavioral2/files/0x0007000000022e39-145.dat	family_orcus

Orcurs Rat Executable 4 IoCs

resource	yara_rule
behavioral2/files/0x0007000000022e39-141.dat	orcus
behavioral2/files/0x0007000000022e39-143.dat	orcus
behavioral2/memory/1540-144-0x00000000006F0000-0x00000000007D8000-memory.dmp	orcus
behavioral2/files/0x0007000000022e39-145.dat	orcus

Executes dropped EXE 4 IoCs

pid	Process
1540	svchost.exe
4132	svchost.exe
4224	svchost32.exe
4244	svchost32.exe

Checks computer location settings 2 TTPs 3 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	HEUR-Trojan-Spy.MSIL.Generic-9162035bdf58571f4addb781f7501a55337a2437c0022e0cb5cf9f0162bcf8f2.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	svchost.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	svchost32.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\windows proxy = "\"C:\\Program Files\\proxy\\svchost.exe\""	svchost.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	HEUR-Trojan-Spy.MSIL.Generic-9162035bdf58571f4addb781f7501a55337a2437c0022e0cb5cf9f0162bcf8f2.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	HEUR-Trojan-Spy.MSIL.Generic-9162035bdf58571f4addb781f7501a55337a2437c0022e0cb5cf9f0162bcf8f2.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\Program Files\proxy\svchost.exe	HEUR-Trojan-Spy.MSIL.Generic-9162035bdf58571f4addb781f7501a55337a2437c0022e0cb5cf9f0162bcf8f2.exe
File opened for modification	C:\Program Files\proxy\svchost.exe	HEUR-Trojan-Spy.MSIL.Generic-9162035bdf58571f4addb781f7501a55337a2437c0022e0cb5cf9f0162bcf8f2.exe
File created	C:\Program Files\proxy\svchost.exe.config	HEUR-Trojan-Spy.MSIL.Generic-9162035bdf58571f4addb781f7501a55337a2437c0022e0cb5cf9f0162bcf8f2.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly	HEUR-Trojan-Spy.MSIL.Generic-9162035bdf58571f4addb781f7501a55337a2437c0022e0cb5cf9f0162bcf8f2.exe
File created	C:\Windows\assembly\Desktop.ini	HEUR-Trojan-Spy.MSIL.Generic-9162035bdf58571f4addb781f7501a55337a2437c0022e0cb5cf9f0162bcf8f2.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	HEUR-Trojan-Spy.MSIL.Generic-9162035bdf58571f4addb781f7501a55337a2437c0022e0cb5cf9f0162bcf8f2.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1540	svchost.exe
1540	svchost.exe
1540	svchost.exe
4244	svchost32.exe
4244	svchost32.exe
4244	svchost32.exe
1540	svchost.exe
4244	svchost32.exe
1540	svchost.exe
4244	svchost32.exe
1540	svchost.exe
4244	svchost32.exe
1540	svchost.exe
4244	svchost32.exe
1540	svchost.exe
4244	svchost32.exe
1540	svchost.exe
4244	svchost32.exe
1540	svchost.exe
4244	svchost32.exe
1540	svchost.exe
4244	svchost32.exe
1540	svchost.exe
4244	svchost32.exe
1540	svchost.exe
4244	svchost32.exe
1540	svchost.exe
4244	svchost32.exe
1540	svchost.exe
4244	svchost32.exe
1540	svchost.exe
4244	svchost32.exe
1540	svchost.exe
4244	svchost32.exe
1540	svchost.exe
4244	svchost32.exe
1540	svchost.exe
4244	svchost32.exe
1540	svchost.exe
4244	svchost32.exe
1540	svchost.exe
4244	svchost32.exe
1540	svchost.exe
4244	svchost32.exe
1540	svchost.exe
4244	svchost32.exe
1540	svchost.exe
4244	svchost32.exe
1540	svchost.exe
4244	svchost32.exe
1540	svchost.exe
4244	svchost32.exe
1540	svchost.exe
4244	svchost32.exe
1540	svchost.exe
4244	svchost32.exe
1540	svchost.exe
4244	svchost32.exe
1540	svchost.exe
4244	svchost32.exe
1540	svchost.exe
4244	svchost32.exe
1540	svchost.exe
4244	svchost32.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4224	svchost32.exe
Token: SeDebugPrivilege	1540	svchost.exe
Token: SeDebugPrivilege	4244	svchost32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1540	svchost.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
1540	svchost.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4964 wrote to memory of 3608	4964	HEUR-Trojan-Spy.MSIL.Generic-9162035bdf58571f4addb781f7501a55337a2437c0022e0cb5cf9f0162bcf8f2.exe	79
PID 4964 wrote to memory of 3608	4964	HEUR-Trojan-Spy.MSIL.Generic-9162035bdf58571f4addb781f7501a55337a2437c0022e0cb5cf9f0162bcf8f2.exe	79
PID 3608 wrote to memory of 4456	3608	csc.exe	81
PID 3608 wrote to memory of 4456	3608	csc.exe	81
PID 4964 wrote to memory of 1540	4964	HEUR-Trojan-Spy.MSIL.Generic-9162035bdf58571f4addb781f7501a55337a2437c0022e0cb5cf9f0162bcf8f2.exe	82
PID 4964 wrote to memory of 1540	4964	HEUR-Trojan-Spy.MSIL.Generic-9162035bdf58571f4addb781f7501a55337a2437c0022e0cb5cf9f0162bcf8f2.exe	82
PID 1540 wrote to memory of 4224	1540	svchost.exe	84
PID 1540 wrote to memory of 4224	1540	svchost.exe	84
PID 1540 wrote to memory of 4224	1540	svchost.exe	84
PID 4224 wrote to memory of 4244	4224	svchost32.exe	85
PID 4224 wrote to memory of 4244	4224	svchost32.exe	85
PID 4224 wrote to memory of 4244	4224	svchost32.exe	85

C:\Users\Admin\AppData\Local\Temp\HEUR-Trojan-Spy.MSIL.Generic-9162035bdf58571f4addb781f7501a55337a2437c0022e0cb5cf9f0162bcf8f2.exe
"C:\Users\Admin\AppData\Local\Temp\HEUR-Trojan-Spy.MSIL.Generic-9162035bdf58571f4addb781f7501a55337a2437c0022e0cb5cf9f0162bcf8f2.exe"
1⤵
- Checks computer location settings
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:4964
- C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe
  "C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\6yrzpqs3.cmdline"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3608
- - C:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exe
    C:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES7536.tmp" "c:\Users\Admin\AppData\Local\Temp\CSC7535.tmp"
    3⤵
    PID:4456
- C:\Program Files\proxy\svchost.exe
  "C:\Program Files\proxy\svchost.exe"
  2⤵
  - Executes dropped EXE
  - Checks computer location settings
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:1540
- - C:\Users\Admin\AppData\Local\Temp\svchost32.exe
    "C:\Users\Admin\AppData\Local\Temp\svchost32.exe" /launchSelfAndExit "C:\Program Files\proxy\svchost.exe" 1540
    3⤵
    - Executes dropped EXE
    - Checks computer location settings
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4224
  - - C:\Users\Admin\AppData\Local\Temp\svchost32.exe
      "C:\Users\Admin\AppData\Local\Temp\svchost32.exe" /watchProcess "C:\Program Files\proxy\svchost.exe" 1540
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4244

C:\Program Files\proxy\svchost.exe
"C:\Program Files\proxy\svchost.exe"
1⤵
- Executes dropped EXE
PID:4132

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files\proxy\svchost.exe

Filesize
908KB

MD5
f1e4a04ced6ac22acfbe73b93cfa55a0

SHA1
ef35307d8850052c45827d4873abd98d79906deb

SHA256
9162035bdf58571f4addb781f7501a55337a2437c0022e0cb5cf9f0162bcf8f2

SHA512
062a3de317f9515da294e54b82d0b039959784e12cbdb20553e62ab455c63821105342f3455dc7df42dbabae8c5a9a6b2e426784b6f67af07be3822bcb222063

Download Submit
C:\Program Files\proxy\svchost.exe

Filesize
908KB

MD5
f1e4a04ced6ac22acfbe73b93cfa55a0

SHA1
ef35307d8850052c45827d4873abd98d79906deb

SHA256
9162035bdf58571f4addb781f7501a55337a2437c0022e0cb5cf9f0162bcf8f2

SHA512
062a3de317f9515da294e54b82d0b039959784e12cbdb20553e62ab455c63821105342f3455dc7df42dbabae8c5a9a6b2e426784b6f67af07be3822bcb222063

Download Submit
C:\Program Files\proxy\svchost.exe

Filesize
908KB

MD5
f1e4a04ced6ac22acfbe73b93cfa55a0

SHA1
ef35307d8850052c45827d4873abd98d79906deb

SHA256
9162035bdf58571f4addb781f7501a55337a2437c0022e0cb5cf9f0162bcf8f2

SHA512
062a3de317f9515da294e54b82d0b039959784e12cbdb20553e62ab455c63821105342f3455dc7df42dbabae8c5a9a6b2e426784b6f67af07be3822bcb222063

Download Submit
C:\Program Files\proxy\svchost.exe.config

Filesize
357B

MD5
a2b76cea3a59fa9af5ea21ff68139c98

SHA1
35d76475e6a54c168f536e30206578babff58274

SHA256
f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

SHA512
b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\svchost32.exe.log

Filesize
425B

MD5
4eaca4566b22b01cd3bc115b9b0b2196

SHA1
e743e0792c19f71740416e7b3c061d9f1336bf94

SHA256
34ba0ab8d1850e7825763f413142a333ccbc05fa2b5499a28a7d27b8a1c5b4bb

SHA512
bc2b1bf45203e3bb3009a7d37617b8f0f7ffa613680b32de2b963e39d2cf1650614d7035a0cf78f35a4f5cb17a2a439e2e07deaefd2a4275a62efd0a5c0184a1

Download Submit
C:\Users\Admin\AppData\Local\Temp\6yrzpqs3.dll

Filesize
76KB

MD5
5ba39ebc4be5e92f56c0421991cd8bcb

SHA1
acc2d7185ae0fa0de10b2285146f2bb118f255b4

SHA256
52757a6a1ee8406e43df4cc7a332a4ad31dc0f5be6ec0e8a713d6100525fb50e

SHA512
44b162a7335a9ba25efa2e603b25ea24f65f9db7abb8677393c2a3872a8f37824355807a3b8859dd604e8cff33cb54d38e7d82e72115fd6a80feed60a6b08ad0

Download Submit
C:\Users\Admin\AppData\Local\Temp\RES7536.tmp

Filesize
1KB

MD5
7a7fd653576cfc49fa7fa82c74002665

SHA1
875bf46a57875232f739a733ef4a38ed4389bc4c

SHA256
d7bba2359d08512adbcaa596ab0e0177128b6604a47957866e785b294e110db4

SHA512
843673f0705c256c9fb640f5b3fef201e865434e0d468b6d81d8a7d07f5f54d3a607a91baa45a3c8f4fcec5aedc08d50f9e6fd29de83d28610cd96bd70f84569

Download Submit
C:\Users\Admin\AppData\Local\Temp\svchost32.exe

Filesize
9KB

MD5
913967b216326e36a08010fb70f9dba3

SHA1
7b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf

SHA256
8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a

SHA512
c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33

Download Submit
C:\Users\Admin\AppData\Local\Temp\svchost32.exe

Filesize
9KB

MD5
913967b216326e36a08010fb70f9dba3

SHA1
7b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf

SHA256
8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a

SHA512
c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33

Download Submit
C:\Users\Admin\AppData\Local\Temp\svchost32.exe

Filesize
9KB

MD5
913967b216326e36a08010fb70f9dba3

SHA1
7b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf

SHA256
8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a

SHA512
c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33

Download Submit
C:\Users\Admin\AppData\Local\Temp\svchost32.exe.config

Filesize
357B

MD5
a2b76cea3a59fa9af5ea21ff68139c98

SHA1
35d76475e6a54c168f536e30206578babff58274

SHA256
f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

SHA512
b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\6yrzpqs3.0.cs

Filesize
208KB

MD5
777984169b6a2a4c74a9aa31feeefc5a

SHA1
0bafec2cd993fda70f5dd97fc428d1380893f0c0

SHA256
9acdaa1560635145e16cadf94653866bdc0b5dbd3810c04986ede96773f12a52

SHA512
046a58105b14afa2c63cf1f675e4aac929561bfcd998ce25b86c5f27b85f3236b6bc6e751d0b675d4f6527950edc859bf9c6378250e43133db82bfdcb9b37f43

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\6yrzpqs3.cmdline

Filesize
349B

MD5
5d9242aa23644df67baa5b373dae7a91

SHA1
6a54d8489adef692d8b08a697f93132d0eb7560f

SHA256
def71b8eb560c424efd6d36cfc89f26bf18af96aa347b07221e0c6a54a2acdb3

SHA512
62fc471451752c10bc6ceb6ced66ee29744bffd736dcce3738d9916f9c0c686f0980ac7781c10d341d1070c523c38489d9fab7cf83702f90f139c0355b271670

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\CSC7535.tmp

Filesize
676B

MD5
fb6ec945702156ac00511b824b398184

SHA1
8570d6a428cd54525c5fd17f7269178e88b96379

SHA256
9e1927958edd25f5511b5468c3bc2e65a847c0d2f429d1b1595546a4d9ac5461

SHA512
2333e6d4657f8e7909645ecb66a3860365ac526f1aecdc35c5aeda701caa0b5bbd9648337813baf0dbfa8ca03deab7905b02affff6891276e38ed0ebd9e01740

Download Submit
memory/1540-146-0x00007FFA77CF0000-0x00007FFA787B1000-memory.dmp

Filesize
10.8MB

Download
memory/1540-144-0x00000000006F0000-0x00000000007D8000-memory.dmp

Filesize
928KB

Download
memory/1540-157-0x00007FFA77CF0000-0x00007FFA787B1000-memory.dmp

Filesize
10.8MB

Download
memory/4132-147-0x00007FFA77CF0000-0x00007FFA787B1000-memory.dmp

Filesize
10.8MB

Download
memory/4132-156-0x00007FFA77CF0000-0x00007FFA787B1000-memory.dmp

Filesize
10.8MB

Download
memory/4224-152-0x0000000000850000-0x0000000000858000-memory.dmp

Filesize
32KB

Download
memory/4964-132-0x00007FFA787C0000-0x00007FFA791F6000-memory.dmp

Filesize
10.2MB

Download