cycbot | 1b9973292a4f821f661853620f588e74c12c7b0f5d5e2cc98dd9c4051762a874

General

Target

JaffaCakes118_69ceb7f4c6e602400dc93637ae94a4b1.exe
Size

177KB
MD5

69ceb7f4c6e602400dc93637ae94a4b1
SHA1

333c45c68307eff607cd802d6558775b0f9845a8
SHA256

1b9973292a4f821f661853620f588e74c12c7b0f5d5e2cc98dd9c4051762a874
SHA512

3cbab37b9531b036b800e206b518497603db392d807c11c434d8222e2daf7c156c14ca1212e9b45f3a50a367ed961ee3de6f59e3cc00da03c812cc97a4dfd594
SSDEEP

3072:o3RXLWmMt9ZeJJCErPUezCBjUZWiRzH2+zvt5iqVIENYhsZYbTaCewNZhumXqaHX:8dWHHaJrs8CBj+WiR2+Lv5VVNQsZYb8E

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/4168-14-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/2596-15-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/2596-16-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral2/memory/1776-125-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/2596-126-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/2596-304-0x0000000000400000-0x0000000000491000-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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\DF414\\77105.exe"	JaffaCakes118_69ceb7f4c6e602400dc93637ae94a4b1.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2596-2-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/4168-13-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/4168-14-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/2596-15-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/2596-16-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral2/memory/1776-125-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/2596-126-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/2596-304-0x0000000000400000-0x0000000000491000-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_69ceb7f4c6e602400dc93637ae94a4b1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_69ceb7f4c6e602400dc93637ae94a4b1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_69ceb7f4c6e602400dc93637ae94a4b1.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2596 wrote to memory of 4168	2596	JaffaCakes118_69ceb7f4c6e602400dc93637ae94a4b1.exe	82
PID 2596 wrote to memory of 4168	2596	JaffaCakes118_69ceb7f4c6e602400dc93637ae94a4b1.exe	82
PID 2596 wrote to memory of 4168	2596	JaffaCakes118_69ceb7f4c6e602400dc93637ae94a4b1.exe	82
PID 2596 wrote to memory of 1776	2596	JaffaCakes118_69ceb7f4c6e602400dc93637ae94a4b1.exe	87
PID 2596 wrote to memory of 1776	2596	JaffaCakes118_69ceb7f4c6e602400dc93637ae94a4b1.exe	87
PID 2596 wrote to memory of 1776	2596	JaffaCakes118_69ceb7f4c6e602400dc93637ae94a4b1.exe	87

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_69ceb7f4c6e602400dc93637ae94a4b1.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_69ceb7f4c6e602400dc93637ae94a4b1.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2596
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_69ceb7f4c6e602400dc93637ae94a4b1.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_69ceb7f4c6e602400dc93637ae94a4b1.exe startC:\Program Files (x86)\LP\059D\000.exe%C:\Program Files (x86)\LP\059D
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4168
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_69ceb7f4c6e602400dc93637ae94a4b1.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_69ceb7f4c6e602400dc93637ae94a4b1.exe startC:\Program Files (x86)\1409D\lvvm.exe%C:\Program Files (x86)\1409D
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1776

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\DF414\409D.F41

Filesize
996B

MD5
33e6de7694912cefcca682905a7a96ec

SHA1
37fe272ee40e456afe4cb46ead93e5e112ec4645

SHA256
e58ef5656d97e937393922a41ada1d9680d3d59d864c89dd9f66b5bfd3315da2

SHA512
cb0f64636a20f3cc8455a805045ffb220436653e4a20dfd525201cade3ddf687849a63ee5a388ca0e5ae651c96302f6f739f6bc9d3766f822c9d8c58ba49559f

Download Submit
C:\Users\Admin\AppData\Roaming\DF414\409D.F41

Filesize
600B

MD5
8e810394a4ce12f9490d6ffdca313c9d

SHA1
6f44e8ccd344b74d3c71ae241cf70cae621710be

SHA256
b3d7b2ddb6acc19ea61a33cc89bec1ba7ca21a86a301d92d8cb3b7a9289608c7

SHA512
e419c7ab8a4a9175643a53b566cdaa744e6cdef51b6b8c37600690044ee4ddc7cb8c7bfc359519737f89577c7963be7b69fdf13c21fb8a66988b0d36c00db606

Download Submit
C:\Users\Admin\AppData\Roaming\DF414\409D.F41

Filesize
1KB

MD5
7e53c82696a82acea17e87e88215ba73

SHA1
645e5858c03629951437847698c2822aafb3c61c

SHA256
5388be864b40e714ac7b4d8c27beec98131840217151e88ebceb7a3bdb7a438e

SHA512
aff4d88b6732c400c5e792c05df0beaf0d444cdf99eeca36b3f041abfa29935247ed6f15889bba1fe81032cc2d43eaf29c0739771146e57c26ef265d30b3b0f3

Download Submit
memory/1776-125-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2596-126-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2596-15-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2596-16-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2596-1-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2596-2-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2596-304-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4168-14-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4168-12-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4168-13-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads