cycbot | 19abfd29560432b083bdc06842c2f17304a50bd09f8e3e1bca7341aefd0492bb

General

Target

JaffaCakes118_63b6e99946066ff0a4524bf40077a25d.exe
Size

169KB
MD5

63b6e99946066ff0a4524bf40077a25d
SHA1

72e13910d756720e952999803fef05d9a336cbb6
SHA256

19abfd29560432b083bdc06842c2f17304a50bd09f8e3e1bca7341aefd0492bb
SHA512

5fa231a1454016061caea55438fb0dc18444a6b518e2441eac7784da421c1c531724886cbacb29528adbbafd6e45a4bae1bd6bc1168b3fea9b987bb41c84570e
SSDEEP

3072:4EIFKOKD1rajcxrFZsvGg+wURIoCsmSIiDVI6AiTOpGKSIV3rTMwWVrK0nJXdf2k:2FTKD1O4RZsvFRfsnsiTOpGxg3XMwWVF

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/940-14-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/4052-15-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/4052-16-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral2/memory/3024-138-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/4052-139-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/4052-309-0x0000000000400000-0x0000000000491000-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-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\11862\\97B0B.exe"	JaffaCakes118_63b6e99946066ff0a4524bf40077a25d.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4052-2-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/940-13-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/940-14-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/4052-15-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/4052-16-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral2/memory/3024-138-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/4052-139-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/4052-309-0x0000000000400000-0x0000000000491000-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_63b6e99946066ff0a4524bf40077a25d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_63b6e99946066ff0a4524bf40077a25d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_63b6e99946066ff0a4524bf40077a25d.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4052 wrote to memory of 940	4052	JaffaCakes118_63b6e99946066ff0a4524bf40077a25d.exe	82
PID 4052 wrote to memory of 940	4052	JaffaCakes118_63b6e99946066ff0a4524bf40077a25d.exe	82
PID 4052 wrote to memory of 940	4052	JaffaCakes118_63b6e99946066ff0a4524bf40077a25d.exe	82
PID 4052 wrote to memory of 3024	4052	JaffaCakes118_63b6e99946066ff0a4524bf40077a25d.exe	87
PID 4052 wrote to memory of 3024	4052	JaffaCakes118_63b6e99946066ff0a4524bf40077a25d.exe	87
PID 4052 wrote to memory of 3024	4052	JaffaCakes118_63b6e99946066ff0a4524bf40077a25d.exe	87

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_63b6e99946066ff0a4524bf40077a25d.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_63b6e99946066ff0a4524bf40077a25d.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4052
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_63b6e99946066ff0a4524bf40077a25d.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_63b6e99946066ff0a4524bf40077a25d.exe startC:\Program Files (x86)\LP\0B01\619.exe%C:\Program Files (x86)\LP\0B01
  2⤵
  - System Location Discovery: System Language Discovery
  PID:940
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_63b6e99946066ff0a4524bf40077a25d.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_63b6e99946066ff0a4524bf40077a25d.exe startC:\Program Files (x86)\62253\lvvm.exe%C:\Program Files (x86)\62253
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3024

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\11862\2253.186

Filesize
996B

MD5
ce5ac68cf471bbb3bdf8f47cf83141e4

SHA1
1c0ffca2af5a8a9de93c3fec37ce7794acb464ac

SHA256
7e4597c46e52e3df05f49ccf556c58b0f581ff669437a57a5a90d0756e912e14

SHA512
21a0b497880dd1cb4b854de4736b224e222a5f20f6ed1735d775447c694e484432a032add63c59995744bde7f2f2c5a19e9284c49fbaacb6df24f1303c828433

Download Submit
C:\Users\Admin\AppData\Roaming\11862\2253.186

Filesize
600B

MD5
361c730764500e4c4dfc73a1444d5f6b

SHA1
99943c9dd235f309e46529392a5563bf5126242c

SHA256
65649d46ea14e5485d9c31ef98fb3b217554de73ff39e4612ae4606aa33ee543

SHA512
fedbec548ded731515cce93f652b162c425f7bb60f149f70c72303b15eac9133ee6dbf9a3435c316675f31c0195ad20be1b63c8daf7a49773d8a9dfc8516d52e

Download Submit
C:\Users\Admin\AppData\Roaming\11862\2253.186

Filesize
1KB

MD5
119a65f7a3b73efdeda6b8f70c099d8a

SHA1
4f0d94713062b793efe11426fa430ff2a0d9cdae

SHA256
e1b13c71edf11326fdeb065742d0c759c40a8839c08ccf1898292a087e2a23ed

SHA512
96ca38f225bff66b8387f139f05bfdc68320c68114d1d47a55116caa661b7273812b969e7803f373e3cfbb92f34a6c070955fe3716721e3d33a7c6704e5d82a3

Download Submit
memory/940-13-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/940-12-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/940-14-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3024-138-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4052-16-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/4052-1-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/4052-139-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4052-15-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4052-2-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4052-309-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads