cycbot | 13623ecfa0ce38023a2988e31d8a8def68156fcb7f28d7bbdc4df75ea871ff69

General

Target

JaffaCakes118_7724024e0843d004c58bc8825e1e06de.exe
Size

170KB
MD5

7724024e0843d004c58bc8825e1e06de
SHA1

4013fa58e1077bd2b237cbbaf3dd4815aa2386ce
SHA256

13623ecfa0ce38023a2988e31d8a8def68156fcb7f28d7bbdc4df75ea871ff69
SHA512

dab6da074a25848cc2615a9f0ca1dbeb51676a3a61fc1265b9bb2dde65e0f4f254fa09a263ced41782e8b4d6dea2b8ab0e50ef13961119dce705a6a536667cc6
SSDEEP

3072:CT2GLin8aGRZrIMFZCEmzDpKd6qj06uc+03MJzBMdgztnIHnfOV:CPmnlWdITPpKd6+06uTZUgRIHfO

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/1936-14-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/3008-15-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/3008-82-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2480-86-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/3008-186-0x0000000000400000-0x0000000000445000-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_7724024e0843d004c58bc8825e1e06de.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3008-2-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/1936-13-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/1936-14-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/3008-15-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/3008-82-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2480-86-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2480-85-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/3008-186-0x0000000000400000-0x0000000000445000-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_7724024e0843d004c58bc8825e1e06de.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7724024e0843d004c58bc8825e1e06de.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7724024e0843d004c58bc8825e1e06de.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3008 wrote to memory of 1936	3008	JaffaCakes118_7724024e0843d004c58bc8825e1e06de.exe	30
PID 3008 wrote to memory of 1936	3008	JaffaCakes118_7724024e0843d004c58bc8825e1e06de.exe	30
PID 3008 wrote to memory of 1936	3008	JaffaCakes118_7724024e0843d004c58bc8825e1e06de.exe	30
PID 3008 wrote to memory of 1936	3008	JaffaCakes118_7724024e0843d004c58bc8825e1e06de.exe	30
PID 3008 wrote to memory of 2480	3008	JaffaCakes118_7724024e0843d004c58bc8825e1e06de.exe	32
PID 3008 wrote to memory of 2480	3008	JaffaCakes118_7724024e0843d004c58bc8825e1e06de.exe	32
PID 3008 wrote to memory of 2480	3008	JaffaCakes118_7724024e0843d004c58bc8825e1e06de.exe	32
PID 3008 wrote to memory of 2480	3008	JaffaCakes118_7724024e0843d004c58bc8825e1e06de.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7724024e0843d004c58bc8825e1e06de.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7724024e0843d004c58bc8825e1e06de.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3008
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7724024e0843d004c58bc8825e1e06de.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7724024e0843d004c58bc8825e1e06de.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1936
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7724024e0843d004c58bc8825e1e06de.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7724024e0843d004c58bc8825e1e06de.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2480

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\8E2B.BDC

Filesize
1KB

MD5
68acb9d8583cfb6cd1a7a5bc0c17e0f4

SHA1
5fec192b9897ccfaf8b53ccb2954de53a2aa6b34

SHA256
942ef30c8e005689ff320c2bc6fc56381fb878743adbe7badcadc7ab82da7d24

SHA512
59513b99d1a49cb8daaa9705760998c0504355817552ca3bc7a8f7d3addd88318fee4c8a8fd6d979bf5692e3a23ee8eb38cbff56ea8f54bed79315cdff64beea

Download Submit
C:\Users\Admin\AppData\Roaming\8E2B.BDC

Filesize
600B

MD5
9316d04e132147b114fcb18f0648d4ea

SHA1
5825f6418ce19f72d763564c7ff4f04a1f7509cb

SHA256
8340c230be5f3654be3e4b140ae20fb2bc21b225dde83c094ef285f615581b50

SHA512
3e7331f599289fbc61bfd408713108b27509b99dfa39e6add48cf099e1c88e6dd8dd7f16eefc1acab139cfb450149371c203cb5287eaf47482b1e12a18f9e4a6

Download Submit
C:\Users\Admin\AppData\Roaming\8E2B.BDC

Filesize
996B

MD5
4171ee57fa18d754af94ab18a7a022b3

SHA1
a8e1875986e0e3233844d91f88928b89a4728c12

SHA256
f14d7828a6566b97fb0b847f0afdaf03e12f0b969f1967e1c392288cd312670e

SHA512
7651bce9d1779605cab91e061fe5402ffd20e0ecfb40a3ca442e12cacb239564a8e9f1a57fe6509c8a908989c12a251e1c336df6d173b18a3f389838b354be04

Download Submit
memory/1936-13-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1936-14-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1936-12-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2480-86-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2480-85-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2480-84-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/3008-15-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/3008-1-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/3008-82-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/3008-2-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/3008-186-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads