cycbot | 27dbd55f0a916a37c858ebcad87c4fd4b56d30768c6b8fad1b7bd52d3da9321d

General

Target

JaffaCakes118_0f8ff1d02f4d2ab438537afb36cf0bfd.exe
Size

166KB
MD5

0f8ff1d02f4d2ab438537afb36cf0bfd
SHA1

468fc26a61057e42e34fd9d7ca567d81b4fe7b07
SHA256

27dbd55f0a916a37c858ebcad87c4fd4b56d30768c6b8fad1b7bd52d3da9321d
SHA512

c9460d922a16272e8c902a2f9b240e811a12903265a9d907b5ee29fc5c7dd67d705ac22115de815626619f5a1511692f40a3a456ec4f9ebddd37893e6ff82c69
SSDEEP

3072:H45D2T8WZ9Et60okcy94lywywBs6zukCSQlx93WH9wQ/QRgpcNGSH2RCxzo:H48pEt60o1yMyT+sRhT93fQ/Y6cNGSWK

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/4856-15-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/412-16-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/412-17-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral2/memory/3324-120-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/412-121-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/412-287-0x0000000000400000-0x0000000000490000-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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\A654A\\932DF.exe"	JaffaCakes118_0f8ff1d02f4d2ab438537afb36cf0bfd.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/412-2-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/4856-13-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/4856-15-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/412-16-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/412-17-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral2/memory/3324-118-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/3324-120-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/412-121-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/412-287-0x0000000000400000-0x0000000000490000-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	JaffaCakes118_0f8ff1d02f4d2ab438537afb36cf0bfd.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 412 wrote to memory of 4856	412	JaffaCakes118_0f8ff1d02f4d2ab438537afb36cf0bfd.exe	84
PID 412 wrote to memory of 4856	412	JaffaCakes118_0f8ff1d02f4d2ab438537afb36cf0bfd.exe	84
PID 412 wrote to memory of 4856	412	JaffaCakes118_0f8ff1d02f4d2ab438537afb36cf0bfd.exe	84
PID 412 wrote to memory of 3324	412	JaffaCakes118_0f8ff1d02f4d2ab438537afb36cf0bfd.exe	99
PID 412 wrote to memory of 3324	412	JaffaCakes118_0f8ff1d02f4d2ab438537afb36cf0bfd.exe	99
PID 412 wrote to memory of 3324	412	JaffaCakes118_0f8ff1d02f4d2ab438537afb36cf0bfd.exe	99

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0f8ff1d02f4d2ab438537afb36cf0bfd.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0f8ff1d02f4d2ab438537afb36cf0bfd.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:412
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0f8ff1d02f4d2ab438537afb36cf0bfd.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0f8ff1d02f4d2ab438537afb36cf0bfd.exe startC:\Program Files (x86)\LP\DF6A\5CE.exe%C:\Program Files (x86)\LP\DF6A
  2⤵
  PID:4856
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0f8ff1d02f4d2ab438537afb36cf0bfd.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0f8ff1d02f4d2ab438537afb36cf0bfd.exe startC:\Program Files (x86)\4A1C8\lvvm.exe%C:\Program Files (x86)\4A1C8
  2⤵
  PID:3324

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\A654A\A1C8.654

Filesize
996B

MD5
58db29c79e2fe9054fb73838512231c7

SHA1
9cae32ac76d48573ac47a4092af773eeab2c0434

SHA256
d44e2a19f837ade8e9f915f4d0783510cd1b57c3969cf498df79a70075af3837

SHA512
969589eebe4a58e3ed1c00e15f19485db4c88663ded20e831dda06cc1dadb631f4d3da7ebae0e500dcebd8e030474a2e5759e0263540742be5034609df9c080a

Download Submit
C:\Users\Admin\AppData\Roaming\A654A\A1C8.654

Filesize
600B

MD5
810c99edcc5ab9b69f8d71bc935dec8f

SHA1
5a4414274d34ff225f011cd77a3b715ba002aadb

SHA256
ffae6c9ae7022474c8d34a12ec0de1a382ebf0ee6508bee34c15080c64d49eba

SHA512
4c0ba89df2763e47bf5bf0366eb644fb37618a0291eea1a6b50a9759d07cb079688bef35a19ea6b718d99b2e5043c9b1cb5bcc4797e5b51ac398b65d4e0a1a41

Download Submit
C:\Users\Admin\AppData\Roaming\A654A\A1C8.654

Filesize
1KB

MD5
283064e34188640afd12269912a94013

SHA1
9aeceb5cb5bf7ae36de042a301ed0dffe970d305

SHA256
6cd5c622e1245f7d489a3d0e1b92bf3411c5907b217c1bda29a18406184680f6

SHA512
11361f908a587ad2f2c01bbd7a3ca4457ac09d2bd8159bbccc6f7e52ad8a725da25ce025a6b8b6ef8538930f5ed5b447148efe243cea0d1dba8efac3e8d566b6

Download Submit
memory/412-1-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/412-2-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/412-287-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/412-16-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/412-17-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/412-121-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/3324-120-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/3324-118-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4856-15-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4856-13-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4856-12-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads