cycbot | 630687176413d8e68dec7840c3c88e1f7a65f8cd6d402f887591b76bf6465d35

General

Target

fb34855b4d25f6d0b5e9cf19333c2567_JaffaCakes118.exe
Size

179KB
MD5

fb34855b4d25f6d0b5e9cf19333c2567
SHA1

76adab16924d612346c0d328bce496be8086ceb8
SHA256

630687176413d8e68dec7840c3c88e1f7a65f8cd6d402f887591b76bf6465d35
SHA512

3e9ea5c5d08eb80c3d32ef7c7574ce88b872447142303bef0f63248c90513f57a8a90a1ed2625a91e86ce8e5e6385bba6d7884b1ae780f9244d941e82dcf60e8
SSDEEP

3072:H/1Y3dTmqeHrJ8rMG9gdy56SineLakifm510IeEUpZ8+SQMqJAK0V:9Y3YqeHrg2sOneLamjcJ/8+SQMsAv

Score

10^/10

cycbot backdoor discovery persistence rat spyware stealer upx

Malware Config

Signatures

Cycbot
Cycbot is a backdoor and trojan written in C++..
backdoor rat cycbot
Cycbot family
cycbot

Detects Cycbot payload 5 IoCs

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

resource	yara_rule
behavioral1/memory/2808-14-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/2996-15-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/2996-77-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/1808-81-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/2996-188-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\conhost = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\conhost.exe"	fb34855b4d25f6d0b5e9cf19333c2567_JaffaCakes118.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2996-2-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2808-13-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2808-14-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2996-15-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2996-77-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/1808-79-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/1808-81-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2996-188-0x0000000000400000-0x000000000044B000-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	fb34855b4d25f6d0b5e9cf19333c2567_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fb34855b4d25f6d0b5e9cf19333c2567_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fb34855b4d25f6d0b5e9cf19333c2567_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2996 wrote to memory of 2808	2996	fb34855b4d25f6d0b5e9cf19333c2567_JaffaCakes118.exe	30
PID 2996 wrote to memory of 2808	2996	fb34855b4d25f6d0b5e9cf19333c2567_JaffaCakes118.exe	30
PID 2996 wrote to memory of 2808	2996	fb34855b4d25f6d0b5e9cf19333c2567_JaffaCakes118.exe	30
PID 2996 wrote to memory of 2808	2996	fb34855b4d25f6d0b5e9cf19333c2567_JaffaCakes118.exe	30
PID 2996 wrote to memory of 1808	2996	fb34855b4d25f6d0b5e9cf19333c2567_JaffaCakes118.exe	32
PID 2996 wrote to memory of 1808	2996	fb34855b4d25f6d0b5e9cf19333c2567_JaffaCakes118.exe	32
PID 2996 wrote to memory of 1808	2996	fb34855b4d25f6d0b5e9cf19333c2567_JaffaCakes118.exe	32
PID 2996 wrote to memory of 1808	2996	fb34855b4d25f6d0b5e9cf19333c2567_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\fb34855b4d25f6d0b5e9cf19333c2567_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fb34855b4d25f6d0b5e9cf19333c2567_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2996
- C:\Users\Admin\AppData\Local\Temp\fb34855b4d25f6d0b5e9cf19333c2567_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\fb34855b4d25f6d0b5e9cf19333c2567_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2808
- C:\Users\Admin\AppData\Local\Temp\fb34855b4d25f6d0b5e9cf19333c2567_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\fb34855b4d25f6d0b5e9cf19333c2567_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1808

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\4714.5E3

Filesize
1KB

MD5
24eebfae4bf9051103e6684ae6bafc6c

SHA1
512c15659f91135ea72be7ae18c8914881022549

SHA256
f7ee1b7aa15098587d2847b1928aaeeb4b38a5d4e602482391c67a591d405d22

SHA512
f1e47d3d61c8f60ba227bc641009af03cc83e5a1bcfe59bbea36b4b2d1116498a9ca386debcb62b42eb9cd71f4031645d33af467ce7b69400512d2b33353c69a

Download Submit
C:\Users\Admin\AppData\Roaming\4714.5E3

Filesize
600B

MD5
c9440ab275515d959c0a40933bdade6c

SHA1
c3067d055e4ad4fdd7d4b16df3037df40ad9990d

SHA256
ccd14a971f8014321bc430c968a20ea4ad7c40c7839d7fc609514e8c9eaef6eb

SHA512
62537a85526050277c48452abea9edf6cdab22ce8fd502d55fe208b21e9e15e935a0b37770a991c77583ad3fc4d36abbfedcafa9c896051039b0aec91a946a40

Download Submit
memory/1808-79-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1808-81-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2808-13-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2808-14-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2996-1-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2996-2-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2996-15-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2996-77-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2996-188-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads