cycbot | 2cfeb29b64598fc88385b451a9b6aa20ebb2070b89e4a88f61b6f4abf96e954f

General

Target

JaffaCakes118_16c890c72f9f83d6212d989965d14380.exe
Size

180KB
MD5

16c890c72f9f83d6212d989965d14380
SHA1

c998dfa6a3f73f4f753dcc8af12a16d15f25e9b6
SHA256

2cfeb29b64598fc88385b451a9b6aa20ebb2070b89e4a88f61b6f4abf96e954f
SHA512

7a62d69b3c6f64170bc709600879f65e580c680c295de688e16e98f6d99437146db91514c1aa396d4f83750687cba8b1cd4ce9e95d01d657b776bd60bd7adf06
SSDEEP

3072:JwSYYWu17R6G8oZd1lW+gVK8Z1LOStDIxc9G1TykAZtCc+mL:LvDrfZDeKe7UVkjCcx

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/2884-13-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/2700-14-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/1832-91-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/2700-92-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/2700-163-0x0000000000400000-0x000000000044B000-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"	JaffaCakes118_16c890c72f9f83d6212d989965d14380.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2700-2-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2884-12-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2884-13-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2700-14-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/1832-89-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/1832-91-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2700-92-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2700-163-0x0000000000400000-0x000000000044B000-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	JaffaCakes118_16c890c72f9f83d6212d989965d14380.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_16c890c72f9f83d6212d989965d14380.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_16c890c72f9f83d6212d989965d14380.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2700 wrote to memory of 2884	2700	JaffaCakes118_16c890c72f9f83d6212d989965d14380.exe	30
PID 2700 wrote to memory of 2884	2700	JaffaCakes118_16c890c72f9f83d6212d989965d14380.exe	30
PID 2700 wrote to memory of 2884	2700	JaffaCakes118_16c890c72f9f83d6212d989965d14380.exe	30
PID 2700 wrote to memory of 2884	2700	JaffaCakes118_16c890c72f9f83d6212d989965d14380.exe	30
PID 2700 wrote to memory of 1832	2700	JaffaCakes118_16c890c72f9f83d6212d989965d14380.exe	32
PID 2700 wrote to memory of 1832	2700	JaffaCakes118_16c890c72f9f83d6212d989965d14380.exe	32
PID 2700 wrote to memory of 1832	2700	JaffaCakes118_16c890c72f9f83d6212d989965d14380.exe	32
PID 2700 wrote to memory of 1832	2700	JaffaCakes118_16c890c72f9f83d6212d989965d14380.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_16c890c72f9f83d6212d989965d14380.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_16c890c72f9f83d6212d989965d14380.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2700
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_16c890c72f9f83d6212d989965d14380.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_16c890c72f9f83d6212d989965d14380.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2884
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_16c890c72f9f83d6212d989965d14380.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_16c890c72f9f83d6212d989965d14380.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1832

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\E0B5.AD5

Filesize
600B

MD5
dab5cfbf36e2f4bb66537c6ee8c5a8e8

SHA1
040c4e8ae61a8e5222d64a984e7c2cd05e8e88c5

SHA256
dbfb4c952d100b61c39c7858f656af63197891bf356796e2c6cf1f50386d0409

SHA512
47539c75fefd8461409eb704f0a675095fba41b43075775161100a0d2ff515e272a4480895e0107f1130c0252d9bed5773745be8e64b1dee880f657a39d516b5

Download Submit
C:\Users\Admin\AppData\Roaming\E0B5.AD5

Filesize
1KB

MD5
9d877d6b5e0d032bd91b6bc1bc94d804

SHA1
81afc8938eb82d86ee883d12285257d509f78ba9

SHA256
d1ec426e34cf9933d6c115d5c7a9258ace5d4be232abcbb509e684715737fe34

SHA512
7ddd6de95208d0a63d9f6bcda0ffc088b4ff7beb2b37121f19e0e9fea3e0a51882cb229850dc9d0dd0399639be03503da5245ad42b134cb8c6c275a7349823c7

Download Submit
C:\Users\Admin\AppData\Roaming\E0B5.AD5

Filesize
996B

MD5
da088134702e5e7f5d604431cf045191

SHA1
d105a5f2b7965b5340e1af4b01dcceb0c0fadf96

SHA256
d855f5e5850de08b83ea18041607bfe6a489d1642c7e71b96e3e28392f3edf85

SHA512
889c5f3783435a42fbea8b8997952c1926d2d6708a22f9561386ec134ea1426597cab1dae65e93171706a695c243045a2d2571c2dcc9bfd1d30a6ca035c06df1

Download Submit
memory/1832-89-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1832-91-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2700-1-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2700-2-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2700-14-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2700-92-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2700-163-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2884-12-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2884-13-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads