orcus | 2c79679727444f53ecabaa6c6d588cefb54b9c118ef858bc7e1fdc913440086a

General

Target

test.exe
Size

913KB
MD5

3ec4232085e107853eb6787e80848efa
SHA1

3cc6617af32cd1da1b7ffc0996a1a32e1a171bf1
SHA256

2c79679727444f53ecabaa6c6d588cefb54b9c118ef858bc7e1fdc913440086a
SHA512

9b7f0d5f9d18b3c54d3c65eb7df0f95a799eaeccd383ef9aae44372896bac2e629d6a26c30c47d6ef839c91559a024a1083bd5f39a3187e63e817638f3d2a999
SSDEEP

24576:7Eqr4MROxnF25bHKTlQjrZlI0AilFEvxHiON:7EjMiwjrZlI0AilFEvxHi

Score

10^/10

orcus rat spyware stealer

Malware Config

Extracted

Family

orcus

C2

23.160.168.165:7058

Mutex

eb4cdf8f2fdf48e2948ba799aa59ebe5

Attributes

autostart_method
Disable
enable_keylogger
false
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
Orcus family
orcus

Orcus main payload 1 IoCs

resource	yara_rule
behavioral1/files/0x000700000001932a-30.dat	family_orcus

Orcurs Rat Executable 2 IoCs

resource	yara_rule
behavioral1/files/0x000700000001932a-30.dat	orcus
behavioral1/memory/2780-35-0x0000000000DD0000-0x0000000000EBA000-memory.dmp	orcus

Executes dropped EXE 1 IoCs

pid	Process
2780	Orcus.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\Program Files\Orcus\Orcus.exe.config	test.exe
File created	C:\Program Files\Orcus\Orcus.exe	test.exe
File opened for modification	C:\Program Files\Orcus\Orcus.exe	test.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2780	Orcus.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2780	Orcus.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2780	Orcus.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2364 wrote to memory of 2468	2364	test.exe	30
PID 2364 wrote to memory of 2468	2364	test.exe	30
PID 2364 wrote to memory of 2468	2364	test.exe	30
PID 2468 wrote to memory of 348	2468	csc.exe	32
PID 2468 wrote to memory of 348	2468	csc.exe	32
PID 2468 wrote to memory of 348	2468	csc.exe	32
PID 2364 wrote to memory of 2780	2364	test.exe	34
PID 2364 wrote to memory of 2780	2364	test.exe	34
PID 2364 wrote to memory of 2780	2364	test.exe	34

C:\Users\Admin\AppData\Local\Temp\test.exe
"C:\Users\Admin\AppData\Local\Temp\test.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:2364
- 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\ejhopnwk.cmdline"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2468
- - 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\RESA89F.tmp" "c:\Users\Admin\AppData\Local\Temp\CSCA89E.tmp"
    3⤵
    PID:348
- C:\Program Files\Orcus\Orcus.exe
  "C:\Program Files\Orcus\Orcus.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:2780

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files\Orcus\Orcus.exe

Filesize
913KB

MD5
3ec4232085e107853eb6787e80848efa

SHA1
3cc6617af32cd1da1b7ffc0996a1a32e1a171bf1

SHA256
2c79679727444f53ecabaa6c6d588cefb54b9c118ef858bc7e1fdc913440086a

SHA512
9b7f0d5f9d18b3c54d3c65eb7df0f95a799eaeccd383ef9aae44372896bac2e629d6a26c30c47d6ef839c91559a024a1083bd5f39a3187e63e817638f3d2a999

Download Submit
C:\Program Files\Orcus\Orcus.exe.config

Filesize
357B

MD5
a2b76cea3a59fa9af5ea21ff68139c98

SHA1
35d76475e6a54c168f536e30206578babff58274

SHA256
f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

SHA512
b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

Download Submit
C:\Users\Admin\AppData\Local\Temp\RESA89F.tmp

Filesize
1KB

MD5
332b4c0c44cbd67ac533c9d08e55985d

SHA1
6c21c50a7eca775d75d7283fc5cae491b1b0f629

SHA256
f6b25fbe2bb4dc213c3cbce1b4acf2b80f82b69add0e45a82f3083882cd82dcd

SHA512
a60ad133dd6f33a39e62e5971aaa46f48247138c8251bc4198322318e67d368ec072f8e753bf63232ecc19595f16f17bc335ff31108747f56e4545fc06b75677

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

Filesize
76KB

MD5
c5574eabd7b470852062ac3c37bdb02f

SHA1
dfab31723ceaebc5b5b60ade4b81fdf0f3eae271

SHA256
2a9f1a735907b5dcb8aef5e414f4bdc658b1de3b83dffbb8dc9872010011a3cd

SHA512
f24b471da090e4b715dc42e0d1569184bc6628a4db62f9f18c3c619ee62ebe680a00fed4a97da82bae12dfd072251439d4ae9ab62aff1bc1cf4de8611a99f976

Download Submit
C:\Users\Admin\AppData\Roaming\Orcus\err_eb4cdf8f2fdf48e2948ba799aa59ebe5.dat

Filesize
1KB

MD5
2f3c99016c35f40240ba262e3cd21ab3

SHA1
78dd480a235453739a2b29339cd5105ea329bffd

SHA256
21157bec912de43e3971e0d84ac673f708adc364c6c4fafecb17e2978cdf9624

SHA512
141229837a82ec026a762b494c11736e1148eeeb18113f42be2477d596c51eca577efad0654579688b236064ae31d4a296923efaeed146d2ee20fcc73712499d

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\CSCA89E.tmp

Filesize
676B

MD5
3dfc81f80b6b58cbc51c3dd15780e622

SHA1
0edd59760346297c721971290583cb17efde71fb

SHA256
db8b74568411f4e9ae59e603aaa7eb2eab251646d3beef01d2308c693aece449

SHA512
b6b6d2d40777428c99d88c2e95e34e247a7d8470cf236f833ddf7fc34cd7577320b97c8041a7542d5c6a1716b3e7605f89a893e860ae6235d6391a64bd0a37ce

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

Filesize
208KB

MD5
6011503497b1b9250a05debf9690e52c

SHA1
897aea61e9bffc82d7031f1b3da12fb83efc6d82

SHA256
08f42b8d57bb61bc8f9628c8a80953b06ca4149d50108083fca6dc26bdd49434

SHA512
604c33e82e8b5bb5c54389c2899c81e5482a06e69db08268173a5b4574327ee5de656d312011d07e50a2e398a4c9b0cd79029013f76e05e18cf67ce5a916ffd9

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

Filesize
349B

MD5
18333d6c196a5f6b1eaea032747bc3a9

SHA1
caea7b25c4e0111629c383b264286cf67891621e

SHA256
043d65a131a8d9d5d4278306af173590d99f24cc1b65490bdc6eab28e1cdfee7

SHA512
bcac9b6dd598aa01851b68cb75de1ec35e3b866188f78d202ee67cdd20416aa2a423a83bd320dd8344f5dd2ff9135e8cf3dce6064c0803f2b7ef70a6412ecdee

Download Submit
memory/2364-32-0x000007FEF59F0000-0x000007FEF638D000-memory.dmp

Filesize
9.6MB

Download
memory/2364-3-0x000007FEF59F0000-0x000007FEF638D000-memory.dmp

Filesize
9.6MB

Download
memory/2364-0-0x000007FEF5CAE000-0x000007FEF5CAF000-memory.dmp

Filesize
4KB

Download
memory/2364-1-0x000000001AE70000-0x000000001AECC000-memory.dmp

Filesize
368KB

Download
memory/2364-19-0x0000000002270000-0x0000000002286000-memory.dmp

Filesize
88KB

Download
memory/2364-21-0x0000000000540000-0x0000000000552000-memory.dmp

Filesize
72KB

Download
memory/2364-22-0x0000000000590000-0x0000000000598000-memory.dmp

Filesize
32KB

Download
memory/2364-23-0x0000000001FD0000-0x0000000001FD8000-memory.dmp

Filesize
32KB

Download
memory/2364-7-0x000007FEF59F0000-0x000007FEF638D000-memory.dmp

Filesize
9.6MB

Download
memory/2364-2-0x0000000000380000-0x000000000038E000-memory.dmp

Filesize
56KB

Download
memory/2364-24-0x000007FEF59F0000-0x000007FEF638D000-memory.dmp

Filesize
9.6MB

Download
memory/2364-33-0x000007FEF59F0000-0x000007FEF638D000-memory.dmp

Filesize
9.6MB

Download
memory/2468-10-0x000007FEF59F0000-0x000007FEF638D000-memory.dmp

Filesize
9.6MB

Download
memory/2468-17-0x000007FEF59F0000-0x000007FEF638D000-memory.dmp

Filesize
9.6MB

Download
memory/2780-35-0x0000000000DD0000-0x0000000000EBA000-memory.dmp

Filesize
936KB

Download
memory/2780-38-0x00000000004C0000-0x00000000004D8000-memory.dmp

Filesize
96KB

Download
memory/2780-39-0x0000000000660000-0x0000000000670000-memory.dmp

Filesize
64KB

Download

Analysis

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