cycbot | e43ad0436de2e63421f23dcc16bccfc0cb229b86ff64ce1f44b1c5db4f453e85

General

Target

e43ad0436de2e63421f23dcc16bccfc0cb229b86ff64ce1f44b1c5db4f453e85.exe
Size

169KB
MD5

991d96d8c7baedda2df4ee1586a13f7c
SHA1

5c4b93c23cba17479c581b967bb2b8b63b37453c
SHA256

e43ad0436de2e63421f23dcc16bccfc0cb229b86ff64ce1f44b1c5db4f453e85
SHA512

c0652f7f7d8f67a2e1d4b1cd5e0c3c01626262ab050e8b380f330bfb0ad984347cefb645e2da872dcec2fe5378e8585ff22eceb8d22723a62e38b406fa73c415
SSDEEP

3072:pYtI3xw7+scZSKf9OnYqjbsYUdhV+ZF+Q0kx+p9s4lgUBS9Rh/duUkv:pP3xeNcZSKf9yYosXdhTksp9IdEl

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 7 IoCs

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

resource	yara_rule
behavioral2/memory/2068-15-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/2604-16-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral2/memory/2604-17-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/2604-86-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/3776-91-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/2604-188-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/2604-191-0x0000000000400000-0x0000000000491000-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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\E89C7\\AD43D.exe"	e43ad0436de2e63421f23dcc16bccfc0cb229b86ff64ce1f44b1c5db4f453e85.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2604-2-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/2068-13-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/2068-15-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/2604-16-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral2/memory/2604-17-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/2604-86-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/3776-89-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/3776-91-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/2604-188-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/2604-191-0x0000000000400000-0x0000000000491000-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	e43ad0436de2e63421f23dcc16bccfc0cb229b86ff64ce1f44b1c5db4f453e85.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2604 wrote to memory of 2068	2604	e43ad0436de2e63421f23dcc16bccfc0cb229b86ff64ce1f44b1c5db4f453e85.exe	83
PID 2604 wrote to memory of 2068	2604	e43ad0436de2e63421f23dcc16bccfc0cb229b86ff64ce1f44b1c5db4f453e85.exe	83
PID 2604 wrote to memory of 2068	2604	e43ad0436de2e63421f23dcc16bccfc0cb229b86ff64ce1f44b1c5db4f453e85.exe	83
PID 2604 wrote to memory of 3776	2604	e43ad0436de2e63421f23dcc16bccfc0cb229b86ff64ce1f44b1c5db4f453e85.exe	94
PID 2604 wrote to memory of 3776	2604	e43ad0436de2e63421f23dcc16bccfc0cb229b86ff64ce1f44b1c5db4f453e85.exe	94
PID 2604 wrote to memory of 3776	2604	e43ad0436de2e63421f23dcc16bccfc0cb229b86ff64ce1f44b1c5db4f453e85.exe	94

C:\Users\Admin\AppData\Local\Temp\e43ad0436de2e63421f23dcc16bccfc0cb229b86ff64ce1f44b1c5db4f453e85.exe
"C:\Users\Admin\AppData\Local\Temp\e43ad0436de2e63421f23dcc16bccfc0cb229b86ff64ce1f44b1c5db4f453e85.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2604
- C:\Users\Admin\AppData\Local\Temp\e43ad0436de2e63421f23dcc16bccfc0cb229b86ff64ce1f44b1c5db4f453e85.exe
  C:\Users\Admin\AppData\Local\Temp\e43ad0436de2e63421f23dcc16bccfc0cb229b86ff64ce1f44b1c5db4f453e85.exe startC:\Program Files (x86)\LP\24BE\FF0.exe%C:\Program Files (x86)\LP\24BE
  2⤵
  PID:2068
- C:\Users\Admin\AppData\Local\Temp\e43ad0436de2e63421f23dcc16bccfc0cb229b86ff64ce1f44b1c5db4f453e85.exe
  C:\Users\Admin\AppData\Local\Temp\e43ad0436de2e63421f23dcc16bccfc0cb229b86ff64ce1f44b1c5db4f453e85.exe startC:\Program Files (x86)\C730A\lvvm.exe%C:\Program Files (x86)\C730A
  2⤵
  PID:3776

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\E89C7\730A.89C

Filesize
1KB

MD5
589d6f12abb9c743adf48a33c1e45a57

SHA1
76070cea8b859b6d937850aa7880709696930c71

SHA256
7c08355a4c916751dbbf4da3d478facf73c293f1d8a5221781f2a4f8be6bec8a

SHA512
e92fb50f1019677dd74770d1409bbd0758692966ff8b07036184d08ecc8464e4d3c63cefff125eff0d1c90d7c85223f012c2fcf68a0a404d985f45d9b349e9a1

Download Submit
C:\Users\Admin\AppData\Roaming\E89C7\730A.89C

Filesize
600B

MD5
d50ab195b074df10d3aaba156d05a9fd

SHA1
00ff0792856dfef599ccb3a60d17964c5b0ba586

SHA256
8f174b5bc1a06eb8c8edf9259a183e8363360304418deb17e18e397cb5da1a03

SHA512
bd69be98d388bb12d421c2610d6ecbc76d7581fc69c7625dedf6f422e445f31dc67624acf71a25321bd48cff02f605270641a1e5e42b2f126c345931fe1d5b2c

Download Submit
C:\Users\Admin\AppData\Roaming\E89C7\730A.89C

Filesize
996B

MD5
76dc526d183066ebb74ec6dbabb33214

SHA1
a841c72f7c50e03f918499d0a6d3d464999673d1

SHA256
04252599c1112bbdef5d6c578cce6dfe4b685b7bab6fe802101f9070b950b39f

SHA512
975af1fcdff67679c9ed5b8610f9e698ca567b4aac07022faa3b127e8f217a8a36783fc747f12c4e1c399383be310148ce7b5348e8cef26e71294d467a4b8dac

Download Submit
memory/2068-15-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2068-13-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2604-16-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2604-17-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2604-1-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2604-86-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2604-2-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2604-188-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2604-191-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3776-88-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3776-89-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3776-91-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads