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/2620-10-0x0000000000400000-0x000000000046E000-memory.dmp	family_cycbot
behavioral2/memory/5060-15-0x0000000000400000-0x000000000046E000-memory.dmp	family_cycbot
behavioral2/memory/5060-74-0x0000000000400000-0x000000000046E000-memory.dmp	family_cycbot
behavioral2/memory/4064-79-0x0000000000400000-0x000000000046E000-memory.dmp	family_cycbot
behavioral2/memory/5060-188-0x0000000000400000-0x000000000046E000-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-1-5-21-3227495264-2217614367-4027411560-1000\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/5060-2-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/2620-8-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/2620-10-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/5060-15-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/5060-74-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/4064-77-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/4064-79-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/5060-188-0x0000000000400000-0x000000000046E000-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 5060 wrote to memory of 2620	5060	67bc474fba12625f5fa89472f784d61d3fc233eab98227f6d1c54921cc18204e.exe	82
PID 5060 wrote to memory of 2620	5060	67bc474fba12625f5fa89472f784d61d3fc233eab98227f6d1c54921cc18204e.exe	82
PID 5060 wrote to memory of 2620	5060	67bc474fba12625f5fa89472f784d61d3fc233eab98227f6d1c54921cc18204e.exe	82
PID 5060 wrote to memory of 4064	5060	67bc474fba12625f5fa89472f784d61d3fc233eab98227f6d1c54921cc18204e.exe	85
PID 5060 wrote to memory of 4064	5060	67bc474fba12625f5fa89472f784d61d3fc233eab98227f6d1c54921cc18204e.exe	85
PID 5060 wrote to memory of 4064	5060	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:5060
- 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:2620
- 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:4064

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\8F76.F8D

Filesize
1KB

MD5
a9537c5b9ddc2a3eaf2eb2a895c4124d

SHA1
8f81be668eeb2101697ae2642a20e3be3af46d48

SHA256
e45b472660627ed2bf3516b7fd26ed46bf564a4a65266969dbe06066f69368b8

SHA512
86430141611302bce02e416a7a9ffb884720025feeca13393fed501c5645530e8351b4085311b2f321a39cc44764b7f2841eeb40ab4b9ee25081591b353d1df6

Download Submit
C:\Users\Admin\AppData\Roaming\8F76.F8D

Filesize
600B

MD5
559949271cc7ea1eafa01a323a2bdf20

SHA1
05937ef07abaea3998c26d75fba3c21b991e8304

SHA256
ccf77acbdd277ca5ab3096fa3dd4ae6f85454dd06ca0263ffd2c8d2d8d9c74bd

SHA512
acb99466128168c5b92a45fb366c3468d30486b6f2febcfe5f3a4ff9863722589928028a4ce30bb89bc863c310505c306fa83cfcd1514fd288d0f3fc76481d15

Download Submit
C:\Users\Admin\AppData\Roaming\8F76.F8D

Filesize
996B

MD5
b582b448ab22abd66bb0cff314227742

SHA1
4a5a19a4988c3756088d2cb5fb4b37b0fe4a8bba

SHA256
dec51f8f1ba7e8dff703990900ab845824e3451f2ed0d7af1d01b2582711d3fd

SHA512
840113a7b1a2e6712e8af1bc049c9b27be7e3e9dfaa4e5ba13ba14010881f18329c161078bcd422a6bb1976d65c0cb740e650f04ae7c7e124aa9716fae0c4f17

Download Submit
memory/2620-8-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2620-10-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/4064-79-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/4064-76-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/4064-77-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/5060-74-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/5060-1-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/5060-15-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/5060-2-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/5060-188-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads