cycbot | 61ce01da25d5bfa901b634ebae1e5c27d4025580ff6e53f689414a54cf3a0686

General

Target

JaffaCakes118_6702221e39f0edcac29f6a9557fde8e3.exe
Size

156KB
MD5

6702221e39f0edcac29f6a9557fde8e3
SHA1

776ff21f0b80310ed948ab994b10ad1bfe91ccaa
SHA256

61ce01da25d5bfa901b634ebae1e5c27d4025580ff6e53f689414a54cf3a0686
SHA512

1c4c4e1f41f8fdfe9818eb22b5402b541c1d336ea05687fc6804b0bcd2b0fb9e04a02d08f8110256d75d3bf79fd9cb872f395d7eb05a360cf66250ba8ae94841
SSDEEP

3072:h1AV61tuPhQI6oJu0Dwv5n+qrKw/ZwTGARKCL5Mfk1DTRX5hffsnz+pTi:LbtuPheR5vpnmcQRJL0ADTRJ9fszR

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/1984-6-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2376-14-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2848-81-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2376-142-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2376-198-0x0000000000400000-0x0000000000442000-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_6702221e39f0edcac29f6a9557fde8e3.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2376-2-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1984-6-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1984-5-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2376-14-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2848-81-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2376-142-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2376-198-0x0000000000400000-0x0000000000442000-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_6702221e39f0edcac29f6a9557fde8e3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6702221e39f0edcac29f6a9557fde8e3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6702221e39f0edcac29f6a9557fde8e3.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2376 wrote to memory of 1984	2376	JaffaCakes118_6702221e39f0edcac29f6a9557fde8e3.exe	30
PID 2376 wrote to memory of 1984	2376	JaffaCakes118_6702221e39f0edcac29f6a9557fde8e3.exe	30
PID 2376 wrote to memory of 1984	2376	JaffaCakes118_6702221e39f0edcac29f6a9557fde8e3.exe	30
PID 2376 wrote to memory of 1984	2376	JaffaCakes118_6702221e39f0edcac29f6a9557fde8e3.exe	30
PID 2376 wrote to memory of 2848	2376	JaffaCakes118_6702221e39f0edcac29f6a9557fde8e3.exe	33
PID 2376 wrote to memory of 2848	2376	JaffaCakes118_6702221e39f0edcac29f6a9557fde8e3.exe	33
PID 2376 wrote to memory of 2848	2376	JaffaCakes118_6702221e39f0edcac29f6a9557fde8e3.exe	33
PID 2376 wrote to memory of 2848	2376	JaffaCakes118_6702221e39f0edcac29f6a9557fde8e3.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6702221e39f0edcac29f6a9557fde8e3.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6702221e39f0edcac29f6a9557fde8e3.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2376
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6702221e39f0edcac29f6a9557fde8e3.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6702221e39f0edcac29f6a9557fde8e3.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1984
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6702221e39f0edcac29f6a9557fde8e3.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6702221e39f0edcac29f6a9557fde8e3.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2848

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\CC72.69F

Filesize
600B

MD5
16aaa539f44c7cafe748262ba908c205

SHA1
b9990a4d76ee52cba4fc4ab569e5d2bbbf7574d6

SHA256
193478cc7b3e2099d6ae0349617d75f07b31e665629f11259dca5ba807c0c2cd

SHA512
39cf34aef65a7b60d93ef3a71e88994565780ddd5b006b53fd6e686b277fab282def359847e850b0f25c42882d5dba1435897b1ea7ab729ca70c8b6667db0e74

Download Submit
C:\Users\Admin\AppData\Roaming\CC72.69F

Filesize
1KB

MD5
ad827d7adc5cc76e9f2db1cc007dfd73

SHA1
467cb5c3991cac36d52c644b76537d8c2604532d

SHA256
348b737d27e058ea63d15243280a1e82e467698915cf53f07162994d894a4e30

SHA512
86661ca0c0351ccbc4f4dcad7f8b0ee88176916e96e09a35373c7db10201488b9fae60d0ccf7453c3628012613490d1dab322793a78ea1093d1a4da8e2e9652e

Download Submit
C:\Users\Admin\AppData\Roaming\CC72.69F

Filesize
996B

MD5
db4f31cd5bcd26b0178711c567968699

SHA1
c52dd11acd55063e5b41a8aa4dd07d92ea178571

SHA256
01100c7b16c6c9d25fb57a47b17f747cc20ac81b53934d15983471ee1827eb5f

SHA512
f47272c59fb0c9d802202fb3f9023b4540b3b1286aab51027fd0981228612772ad99b103e701ce379734167e9805b10ca80e799d66f8f16d52f6f9392d69586e

Download Submit
memory/1984-6-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1984-5-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2376-1-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2376-2-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2376-14-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2376-142-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2376-198-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2848-81-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads