cycbot | 4c40b7d656b04fe06d61f6d68d4074f5e43c043b89b04babbe07497b89c7b45d

General

Target

JaffaCakes118_86888ae58520c810eaba83f6d7ee2cff.exe
Size

157KB
MD5

86888ae58520c810eaba83f6d7ee2cff
SHA1

eb5cc1809d2ed2d25a9145b8d49ccb0dd57795da
SHA256

4c40b7d656b04fe06d61f6d68d4074f5e43c043b89b04babbe07497b89c7b45d
SHA512

7cec6b1605e3c6efc902d706e397289c90a3c40909a2dc16ae4289ebb7e20ccd8e73a561d891e5a9cbfbfa0b694bfe1c07cc86570bad6b32d18e6ff760d39e3e
SSDEEP

3072:A47N22GUU91RUerVtzHpKIs1i9eIFNlU52hy7v8ZtqeuqJ3tqGCINvT:Rx22GUsqerVdpKt1i9eIPrJnJ3UdCL

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/2988-5-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2692-13-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2692-84-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/916-86-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2692-194-0x0000000000400000-0x0000000000442000-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"	JaffaCakes118_86888ae58520c810eaba83f6d7ee2cff.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2692-2-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2988-5-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2692-13-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2692-84-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/916-86-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2692-194-0x0000000000400000-0x0000000000442000-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_86888ae58520c810eaba83f6d7ee2cff.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_86888ae58520c810eaba83f6d7ee2cff.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_86888ae58520c810eaba83f6d7ee2cff.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2692 wrote to memory of 2988	2692	JaffaCakes118_86888ae58520c810eaba83f6d7ee2cff.exe	30
PID 2692 wrote to memory of 2988	2692	JaffaCakes118_86888ae58520c810eaba83f6d7ee2cff.exe	30
PID 2692 wrote to memory of 2988	2692	JaffaCakes118_86888ae58520c810eaba83f6d7ee2cff.exe	30
PID 2692 wrote to memory of 2988	2692	JaffaCakes118_86888ae58520c810eaba83f6d7ee2cff.exe	30
PID 2692 wrote to memory of 916	2692	JaffaCakes118_86888ae58520c810eaba83f6d7ee2cff.exe	32
PID 2692 wrote to memory of 916	2692	JaffaCakes118_86888ae58520c810eaba83f6d7ee2cff.exe	32
PID 2692 wrote to memory of 916	2692	JaffaCakes118_86888ae58520c810eaba83f6d7ee2cff.exe	32
PID 2692 wrote to memory of 916	2692	JaffaCakes118_86888ae58520c810eaba83f6d7ee2cff.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_86888ae58520c810eaba83f6d7ee2cff.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_86888ae58520c810eaba83f6d7ee2cff.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2692
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_86888ae58520c810eaba83f6d7ee2cff.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_86888ae58520c810eaba83f6d7ee2cff.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2988
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_86888ae58520c810eaba83f6d7ee2cff.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_86888ae58520c810eaba83f6d7ee2cff.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:916

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\A6DF.952

Filesize
600B

MD5
75ef54491982c0f0bf83adc46300b23b

SHA1
90a2a220d1de3a838ae46a00b21323bfef50ac07

SHA256
899628c865f26897ded0c3906aa881eab443d5e8284ffb60b86453a3d2882084

SHA512
2f712e5bfd184d9466dc5b66b30633a8e4170ec6dc1a54c7077fd36f94d2ea656087324ea6ec8cee340a77459644914d774f474e04918c3959fedfd21f159003

Download Submit
C:\Users\Admin\AppData\Roaming\A6DF.952

Filesize
996B

MD5
b93013165c887964000f2afd40420640

SHA1
820cba9cef6ddd7afdcabacae47d918148e1d862

SHA256
7b405206aad419ba945929c86eec8764673a135ad5b1bcecffe6c893ba3b77c7

SHA512
0a6f290b12281ba4327b923e29863fea9f7d95076dddb86b843f9cca8e155b29996ac8ce5515757d05014dbbf040a1468a7edde5709289f43ee7dbb129dd270e

Download Submit
memory/916-86-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2692-1-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2692-2-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2692-13-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2692-84-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2692-194-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2988-5-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads