cycbot | 16eac02ab1978d841957f0fa1860f25caa6c5cfa5f684fa4f941416b58dab1bb

General

Target

JaffaCakes118_0e4aababa44e7c791885d4a1008bee08.exe
Size

168KB
MD5

0e4aababa44e7c791885d4a1008bee08
SHA1

bb938024657863666262cdeec834cf077679f973
SHA256

16eac02ab1978d841957f0fa1860f25caa6c5cfa5f684fa4f941416b58dab1bb
SHA512

bcd9a9acb938147bea1d5c5807a27df60728637e36c49096d21352df7ef4d28d211ddbc2212795c0b65ecb84492817c57625eee81b47e400b3a1fa20a6c4fcc8
SSDEEP

3072:JSl1S5zLQDDh10NRW3/n2kJWQvitdEZzK50CkF0VWfwG84CZxjOSOU2YOto9eJ:yUCDDhK63/2kJpa7EZzFF0co/4CPjjY2

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/4860-13-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/4044-15-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/4044-16-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral2/memory/4392-147-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/4044-148-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/4044-326-0x0000000000400000-0x0000000000491000-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\\F805E\\AEBE9.exe"	JaffaCakes118_0e4aababa44e7c791885d4a1008bee08.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4044-2-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/4860-13-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/4860-14-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/4044-15-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/4044-16-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral2/memory/4392-145-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/4392-147-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/4044-148-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/4044-326-0x0000000000400000-0x0000000000491000-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	JaffaCakes118_0e4aababa44e7c791885d4a1008bee08.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_0e4aababa44e7c791885d4a1008bee08.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_0e4aababa44e7c791885d4a1008bee08.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4044 wrote to memory of 4860	4044	JaffaCakes118_0e4aababa44e7c791885d4a1008bee08.exe	84
PID 4044 wrote to memory of 4860	4044	JaffaCakes118_0e4aababa44e7c791885d4a1008bee08.exe	84
PID 4044 wrote to memory of 4860	4044	JaffaCakes118_0e4aababa44e7c791885d4a1008bee08.exe	84
PID 4044 wrote to memory of 4392	4044	JaffaCakes118_0e4aababa44e7c791885d4a1008bee08.exe	93
PID 4044 wrote to memory of 4392	4044	JaffaCakes118_0e4aababa44e7c791885d4a1008bee08.exe	93
PID 4044 wrote to memory of 4392	4044	JaffaCakes118_0e4aababa44e7c791885d4a1008bee08.exe	93

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0e4aababa44e7c791885d4a1008bee08.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0e4aababa44e7c791885d4a1008bee08.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4044
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0e4aababa44e7c791885d4a1008bee08.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0e4aababa44e7c791885d4a1008bee08.exe startC:\Program Files (x86)\LP\E93F\873.exe%C:\Program Files (x86)\LP\E93F
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4860
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0e4aababa44e7c791885d4a1008bee08.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0e4aababa44e7c791885d4a1008bee08.exe startC:\Program Files (x86)\5E8BE\lvvm.exe%C:\Program Files (x86)\5E8BE
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4392

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\F805E\E8BE.805

Filesize
996B

MD5
4ba4d23df4ec6846c03bd6d65d324d3d

SHA1
274b88626c4449afe44e5d9f1c4bd930a38794e2

SHA256
3a1c1d1072f9f5a2281fad56ed4b05c11c0413d60e78bb9abe45761dc9acaa9f

SHA512
d5a754f48687afd21a757b729382fea8cd7b1a3aa46b22009090f8df35d04c7303ba5223a69f58299c18260bac2e67d82c3c9848d2c3748d76154ca2aba1cf09

Download Submit
C:\Users\Admin\AppData\Roaming\F805E\E8BE.805

Filesize
600B

MD5
182af3b04e84b8544afbfcaf3606f03e

SHA1
ae6fceb3c527704de24c607927a6cb8170b30fad

SHA256
9c11f0ee239b6fc5575061516e7c0a9755614bae39f44b236272020207ae01a0

SHA512
bed9fda3157867d2cda5c5857b8e739b9a968810564215fa1db26239b62ba12c8ba852f47700cd117ba3a2720924f51548e3e5e40c92d24267fc37d8303fd37f

Download Submit
C:\Users\Admin\AppData\Roaming\F805E\E8BE.805

Filesize
1KB

MD5
904223fedaa05b0b7eafdb2d97a6993e

SHA1
649c4012844c29c4d5200b5d3aabefb93107608f

SHA256
c5bba98cdd2fb1e9226ccd5a30815b05566e0c8ac450dfe0040ce46913d3edba

SHA512
438f84cb7c961228b0e835c6e7ec55c5ac7374e203cf049bd9328da4f46c5b8a76b8eb911c5b94c9304a8aecbe1bdbbba6ecf71e7a8d0dd444a2a4b4b354943f

Download Submit
memory/4044-1-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/4044-2-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4044-326-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4044-15-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4044-16-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/4044-148-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4392-147-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4392-145-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4860-14-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4860-13-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4860-12-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads