cycbot | 1150039148fb937a29d6bb7124163316af05121698c371ee484830365fa2a5f2

General

Target

1150039148fb937a29d6bb7124163316af05121698c371ee484830365fa2a5f2N.exe
Size

174KB
MD5

7892fac82ab62b2b006373ff7db24c40
SHA1

8c5a0b0506d6dcf9b3ab5fb6822f217167365079
SHA256

1150039148fb937a29d6bb7124163316af05121698c371ee484830365fa2a5f2
SHA512

e882b2b39f5c9a4c3a31081235bbe1f3375b14b91a98ed369ee4845c411163140e3e2906add14946a05e2eac1d7d7ba9e00fcc228781b7d36fc3314c1d0e7f03
SSDEEP

3072:8pRtjHU0Kgvu3BPbBniNxZYotlCSo9TyhW4ViLFWbVs5BJhUcge:SzHU0KgvSBPkaTnFWbVqzhUcT

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 6 IoCs

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

resource	yara_rule
behavioral2/memory/3516-15-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/2508-16-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral2/memory/2508-17-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/2508-80-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/668-82-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/2508-177-0x0000000000400000-0x0000000000491000-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\\FD870\\B8ED3.exe"	1150039148fb937a29d6bb7124163316af05121698c371ee484830365fa2a5f2N.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2508-2-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/3516-13-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/3516-15-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/2508-16-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral2/memory/2508-17-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/2508-80-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/668-82-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/2508-177-0x0000000000400000-0x0000000000491000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 1 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	1150039148fb937a29d6bb7124163316af05121698c371ee484830365fa2a5f2N.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2508 wrote to memory of 3516	2508	1150039148fb937a29d6bb7124163316af05121698c371ee484830365fa2a5f2N.exe	83
PID 2508 wrote to memory of 3516	2508	1150039148fb937a29d6bb7124163316af05121698c371ee484830365fa2a5f2N.exe	83
PID 2508 wrote to memory of 3516	2508	1150039148fb937a29d6bb7124163316af05121698c371ee484830365fa2a5f2N.exe	83
PID 2508 wrote to memory of 668	2508	1150039148fb937a29d6bb7124163316af05121698c371ee484830365fa2a5f2N.exe	93
PID 2508 wrote to memory of 668	2508	1150039148fb937a29d6bb7124163316af05121698c371ee484830365fa2a5f2N.exe	93
PID 2508 wrote to memory of 668	2508	1150039148fb937a29d6bb7124163316af05121698c371ee484830365fa2a5f2N.exe	93

C:\Users\Admin\AppData\Local\Temp\1150039148fb937a29d6bb7124163316af05121698c371ee484830365fa2a5f2N.exe
"C:\Users\Admin\AppData\Local\Temp\1150039148fb937a29d6bb7124163316af05121698c371ee484830365fa2a5f2N.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2508
- C:\Users\Admin\AppData\Local\Temp\1150039148fb937a29d6bb7124163316af05121698c371ee484830365fa2a5f2N.exe
  C:\Users\Admin\AppData\Local\Temp\1150039148fb937a29d6bb7124163316af05121698c371ee484830365fa2a5f2N.exe startC:\Program Files (x86)\LP\D3AF\0EB.exe%C:\Program Files (x86)\LP\D3AF
  2⤵
  PID:3516
- C:\Users\Admin\AppData\Local\Temp\1150039148fb937a29d6bb7124163316af05121698c371ee484830365fa2a5f2N.exe
  C:\Users\Admin\AppData\Local\Temp\1150039148fb937a29d6bb7124163316af05121698c371ee484830365fa2a5f2N.exe startC:\Program Files (x86)\70C32\lvvm.exe%C:\Program Files (x86)\70C32
  2⤵
  PID:668

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\FD870\0C32.D87

Filesize
1KB

MD5
86c78ba2b60316b5b0814c6a808793d0

SHA1
522954363721a2f803fef0987fc3d5ba7f9a2c00

SHA256
176c797cd65693a1418798ff6c8eb302ed7fe50541a720ab6e23a6395331834d

SHA512
1bfcaf6034d558132ba087dc60934b58738e0c0b4874d7d5a5dbf10aec7e52071733fcee0c5249f000a969430b93055f8d1950c747ac82f7f6f5e03205957c4a

Download Submit
C:\Users\Admin\AppData\Roaming\FD870\0C32.D87

Filesize
600B

MD5
3665dce079fb8f434e75ad1af1b381f4

SHA1
fd99ae9ba4da403a101f5d7e9e74e8cfcfaef981

SHA256
a8c9bd593d9073dafeb8b5f8a3d63186c6dfe320b23124474e0e4cec2a020b79

SHA512
6e9d295f1ba2575bb60524c67dbdfec4379434627b54a87a4ce3535585694ec8be14806b9f944e0b3e6456a60f61303e5996a1f465aaee7ad420512f6d039211

Download Submit
C:\Users\Admin\AppData\Roaming\FD870\0C32.D87

Filesize
996B

MD5
e1cf1f46b5d2891a850486252d947996

SHA1
b4b28fcd021c20338df9c747bd5a52ed635fb658

SHA256
842b5090a5da005bef95c7ad7f2dac33f8842cde07989e31b6ac53aa2eb2f516

SHA512
ffbcbca849eeda398ddfc56b2d9c0dc634759e50dbb7b180044424700c594f48d191459d7c6e2f1b5e7226b7abb35f84c1a6eda76ed5b4f8ded4da357b2fa582

Download Submit
memory/668-82-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2508-17-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2508-16-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2508-1-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2508-80-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2508-2-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2508-177-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3516-15-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3516-12-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3516-13-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads