cycbot | ca5fa8be93f118fdb26fcb970ec6194691a80ed4d51721f8ab5dba32afaf3590

General

Target

ca5fa8be93f118fdb26fcb970ec6194691a80ed4d51721f8ab5dba32afaf3590.exe
Size

183KB
MD5

64f9b94be51e2e97bbdb62d77c27355e
SHA1

28bf3b4e18bfecf3ca0f128e0237a4b0e2414b02
SHA256

ca5fa8be93f118fdb26fcb970ec6194691a80ed4d51721f8ab5dba32afaf3590
SHA512

686c4823c7263180c4fc698f16f255ee7626cfeb4a8f365b43a6842cccd90203ed75b7884bda42d11f2dc9d7afcce47e94c5c3662c2acaae7286dc525a84c3eb
SSDEEP

3072:nFmbzWn7+CwH2aXwQNFWwqRaTW0MgxntUn3YuBL5xM68:FCmF9aA+qQkggoSLDMj

Score

10^/10

cycbot backdoor discovery rat spyware stealer upx

Malware Config

Signatures

Cycbot
Cycbot is a backdoor and trojan written in C++..
backdoor rat cycbot
Cycbot family
cycbot

Detects Cycbot payload 4 IoCs

Cycbot is a backdoor and trojan written in C++.

resource	yara_rule
behavioral1/memory/2088-14-0x0000000000400000-0x0000000000471000-memory.dmp	family_cycbot
behavioral1/memory/1992-15-0x0000000000400000-0x0000000000471000-memory.dmp	family_cycbot
behavioral1/memory/2628-75-0x0000000000400000-0x0000000000471000-memory.dmp	family_cycbot
behavioral1/memory/1992-177-0x0000000000400000-0x0000000000471000-memory.dmp	family_cycbot

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

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1992-2-0x0000000000400000-0x0000000000471000-memory.dmp	upx
behavioral1/memory/2088-14-0x0000000000400000-0x0000000000471000-memory.dmp	upx
behavioral1/memory/1992-15-0x0000000000400000-0x0000000000471000-memory.dmp	upx
behavioral1/memory/2628-74-0x0000000000400000-0x0000000000471000-memory.dmp	upx
behavioral1/memory/2628-75-0x0000000000400000-0x0000000000471000-memory.dmp	upx
behavioral1/memory/1992-177-0x0000000000400000-0x0000000000471000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 3 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	ca5fa8be93f118fdb26fcb970ec6194691a80ed4d51721f8ab5dba32afaf3590.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ca5fa8be93f118fdb26fcb970ec6194691a80ed4d51721f8ab5dba32afaf3590.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ca5fa8be93f118fdb26fcb970ec6194691a80ed4d51721f8ab5dba32afaf3590.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1992 wrote to memory of 2088	1992	ca5fa8be93f118fdb26fcb970ec6194691a80ed4d51721f8ab5dba32afaf3590.exe	30
PID 1992 wrote to memory of 2088	1992	ca5fa8be93f118fdb26fcb970ec6194691a80ed4d51721f8ab5dba32afaf3590.exe	30
PID 1992 wrote to memory of 2088	1992	ca5fa8be93f118fdb26fcb970ec6194691a80ed4d51721f8ab5dba32afaf3590.exe	30
PID 1992 wrote to memory of 2088	1992	ca5fa8be93f118fdb26fcb970ec6194691a80ed4d51721f8ab5dba32afaf3590.exe	30
PID 1992 wrote to memory of 2628	1992	ca5fa8be93f118fdb26fcb970ec6194691a80ed4d51721f8ab5dba32afaf3590.exe	33
PID 1992 wrote to memory of 2628	1992	ca5fa8be93f118fdb26fcb970ec6194691a80ed4d51721f8ab5dba32afaf3590.exe	33
PID 1992 wrote to memory of 2628	1992	ca5fa8be93f118fdb26fcb970ec6194691a80ed4d51721f8ab5dba32afaf3590.exe	33
PID 1992 wrote to memory of 2628	1992	ca5fa8be93f118fdb26fcb970ec6194691a80ed4d51721f8ab5dba32afaf3590.exe	33

C:\Users\Admin\AppData\Local\Temp\ca5fa8be93f118fdb26fcb970ec6194691a80ed4d51721f8ab5dba32afaf3590.exe
"C:\Users\Admin\AppData\Local\Temp\ca5fa8be93f118fdb26fcb970ec6194691a80ed4d51721f8ab5dba32afaf3590.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1992
- C:\Users\Admin\AppData\Local\Temp\ca5fa8be93f118fdb26fcb970ec6194691a80ed4d51721f8ab5dba32afaf3590.exe
  C:\Users\Admin\AppData\Local\Temp\ca5fa8be93f118fdb26fcb970ec6194691a80ed4d51721f8ab5dba32afaf3590.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2088
- C:\Users\Admin\AppData\Local\Temp\ca5fa8be93f118fdb26fcb970ec6194691a80ed4d51721f8ab5dba32afaf3590.exe
  C:\Users\Admin\AppData\Local\Temp\ca5fa8be93f118fdb26fcb970ec6194691a80ed4d51721f8ab5dba32afaf3590.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2628

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\7864.084

Filesize
1KB

MD5
f71bc435e1885fcba88207a40e2e519b

SHA1
0b996e6a4dc0b5003d96db621fd38ad80bd4cef6

SHA256
d954f69282246ef27a6963bfa715c550713c4ae1bea5bc42b1aed5b16cffc2e0

SHA512
1b7839683d65f137a0fc465bae89845a98765985dd0c57992c83762f59051c481984f8fb8bd433ce79dbe01a204dbadf3de36fde33fb494d13e90b1e8a4e26a2

Download Submit
C:\Users\Admin\AppData\Roaming\7864.084

Filesize
600B

MD5
41f8afe6b83d794446e46b627cefa398

SHA1
f22cc9fc234395ecb747577950a644d4b5a68c1a

SHA256
ebca73f147173608a593f95db8beb8a4b6432bfcf85ba6e5047a158d8d6a0482

SHA512
6c69ad41ed663fca34d4890eb2f246b9b02dc59c73fe76403464472f06d3c8d1fdcd52979086ad36d99d7e23d32aad20f21aa380969fd31614a56d0c6baecfdc

Download Submit
C:\Users\Admin\AppData\Roaming\7864.084

Filesize
996B

MD5
e4b97ce5551d2572f113f796368e5b71

SHA1
42ca9463c84c435bc8e19344e80fd97f59165be7

SHA256
fa263033c225dfdcd47ded9cf195beed610b8f5f12537c429d9772a2e65e32a2

SHA512
89e8f36f310c982edc6c1b8adee365f8f6bbc07517dd85cca29dbbdcf4dfed64cf196f3b1da6fac5fe42d37938ad7a3a1c97c443b891209346300421bf1c25ee

Download Submit
memory/1992-1-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/1992-2-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/1992-15-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/1992-177-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/2088-12-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/2088-11-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/2088-14-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/2628-74-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/2628-75-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download

Analysis

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