cycbot | 67bc474fba12625f5fa89472f784d61d3fc233eab98227f6d1c54921cc18204e

General

Target

67bc474fba12625f5fa89472f784d61d3fc233eab98227f6d1c54921cc18204e.exe
Size

175KB
MD5

d05b7c90ed2ae56fa73cb421900ed293
SHA1

ba98ec9648bda5f3ed09ded67a1ef4c149c121da
SHA256

67bc474fba12625f5fa89472f784d61d3fc233eab98227f6d1c54921cc18204e
SHA512

53f5b8c34a0d7205ea91736708986a01ed2379c7c36ddc045e71b36e14407cb57a3e7dbdc5443d7a521db9fca7601872ed25522ab6cd648dda9610dcac854a99
SSDEEP

3072:XdF23o/kDbA3PMS6zknBXKr1lbQkpEFxwOMkHWKcrE+uTWTH4Cv:Ng3o8DblzknAr1lbd0w4Zj+r

Score

10^/10

cycbot backdoor discovery persistence rat upx

Malware Config

Signatures

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

Detects Cycbot payload 5 IoCs

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

resource	yara_rule
behavioral2/memory/2596-13-0x0000000000400000-0x000000000046E000-memory.dmp	family_cycbot
behavioral2/memory/3472-14-0x0000000000400000-0x000000000046E000-memory.dmp	family_cycbot
behavioral2/memory/468-90-0x0000000000400000-0x000000000046E000-memory.dmp	family_cycbot
behavioral2/memory/3472-149-0x0000000000400000-0x000000000046E000-memory.dmp	family_cycbot
behavioral2/memory/3472-196-0x0000000000400000-0x000000000046E000-memory.dmp	family_cycbot

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\dwm.exe"	67bc474fba12625f5fa89472f784d61d3fc233eab98227f6d1c54921cc18204e.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3472-2-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/2596-12-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/2596-13-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/3472-14-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/468-88-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/468-90-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/3472-149-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/3472-196-0x0000000000400000-0x000000000046E000-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	67bc474fba12625f5fa89472f784d61d3fc233eab98227f6d1c54921cc18204e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	67bc474fba12625f5fa89472f784d61d3fc233eab98227f6d1c54921cc18204e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	67bc474fba12625f5fa89472f784d61d3fc233eab98227f6d1c54921cc18204e.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3472 wrote to memory of 2596	3472	67bc474fba12625f5fa89472f784d61d3fc233eab98227f6d1c54921cc18204e.exe	83
PID 3472 wrote to memory of 2596	3472	67bc474fba12625f5fa89472f784d61d3fc233eab98227f6d1c54921cc18204e.exe	83
PID 3472 wrote to memory of 2596	3472	67bc474fba12625f5fa89472f784d61d3fc233eab98227f6d1c54921cc18204e.exe	83
PID 3472 wrote to memory of 468	3472	67bc474fba12625f5fa89472f784d61d3fc233eab98227f6d1c54921cc18204e.exe	85
PID 3472 wrote to memory of 468	3472	67bc474fba12625f5fa89472f784d61d3fc233eab98227f6d1c54921cc18204e.exe	85
PID 3472 wrote to memory of 468	3472	67bc474fba12625f5fa89472f784d61d3fc233eab98227f6d1c54921cc18204e.exe	85

C:\Users\Admin\AppData\Local\Temp\67bc474fba12625f5fa89472f784d61d3fc233eab98227f6d1c54921cc18204e.exe
"C:\Users\Admin\AppData\Local\Temp\67bc474fba12625f5fa89472f784d61d3fc233eab98227f6d1c54921cc18204e.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3472
- C:\Users\Admin\AppData\Local\Temp\67bc474fba12625f5fa89472f784d61d3fc233eab98227f6d1c54921cc18204e.exe
  C:\Users\Admin\AppData\Local\Temp\67bc474fba12625f5fa89472f784d61d3fc233eab98227f6d1c54921cc18204e.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2596
- C:\Users\Admin\AppData\Local\Temp\67bc474fba12625f5fa89472f784d61d3fc233eab98227f6d1c54921cc18204e.exe
  C:\Users\Admin\AppData\Local\Temp\67bc474fba12625f5fa89472f784d61d3fc233eab98227f6d1c54921cc18204e.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:468

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\0D3F.7EC

Filesize
1KB

MD5
454e004bd8b806bde03eefd607ff0205

SHA1
e2a4f06f44aa6b6752acccc048dbb927c950b1c9

SHA256
d9cf4e738f9f6ef1e3013301bea5f73c15195d29eb7042fc2345e3eb443ac145

SHA512
634a1551f5b2a2854fdac1ae33b500c659f07ed51dd1badeb31b02e4779309e55dea361b4c01cdb97d87fc7b8294f9b43d35926a506b0587e97e109c307b6f6f

Download Submit
C:\Users\Admin\AppData\Roaming\0D3F.7EC

Filesize
600B

MD5
6c92357679e93532d3cc3684778188fa

SHA1
bf5598ec9aac7769c9c5fc294c3e0226f646009e

SHA256
8dac69b0d9bc5ac6cd4636e482b4a099be12420ea086b064558c1a86ee977132

SHA512
3d1fda5c453eb78cc85f9ce3a1912b356f3a5411ddb01e1487805bac1106ca87df40430c1bb2b71bd04c5e11c2567c79899f2a437f9ed6167655ed7097708902

Download Submit
C:\Users\Admin\AppData\Roaming\0D3F.7EC

Filesize
996B

MD5
0f522df82134c6f7e0f933f70ab5439b

SHA1
3eac8362a21bbdd3bcbf91c66dc2904de839c05a

SHA256
5eaa1c1f9c4284239af1a077ec1267fa22c955b172b5d29de1926cc1aa89735c

SHA512
81ec4a64ca10148687246f78eac05591bcaa9e2dfaf8822e5c68ba6156fe5b407bfc46992bfa1803856bf9789fe3d7ddaadcd1a93bb639cea7b07fd11c2d8e57

Download Submit
memory/468-88-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/468-90-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2596-12-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2596-13-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/3472-1-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/3472-2-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/3472-14-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/3472-149-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/3472-196-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads