cycbot | 06d68c85b3db067febda72f3984c37088be605ebcf2b5e572f87d2df01c86ad7

General

Target

f99cd981b8fe91b8d82721fead80ee7d_JaffaCakes118.exe
Size

194KB
MD5

f99cd981b8fe91b8d82721fead80ee7d
SHA1

78ff5605b43799b1f89fd88df6873438cab7fb79
SHA256

06d68c85b3db067febda72f3984c37088be605ebcf2b5e572f87d2df01c86ad7
SHA512

9279994d94582aa2e8e7fbe1d59347ef56654df07f1e213e1292da65586cb4dc9bad18326a6492e44e2e60c8aef6b4519436ecbe66c089bf36f6a7e389a54183
SSDEEP

6144:1M55lf9pyw+L9YK+b/b1bLqV9dJG7KRPIlnnxw:144LObIE7KRPI8

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/2096-6-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2508-14-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2508-83-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2432-85-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2508-187-0x0000000000400000-0x0000000000445000-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"	f99cd981b8fe91b8d82721fead80ee7d_JaffaCakes118.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2508-1-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2096-5-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2096-6-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2508-14-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2508-83-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2432-85-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2508-187-0x0000000000400000-0x0000000000445000-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	f99cd981b8fe91b8d82721fead80ee7d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f99cd981b8fe91b8d82721fead80ee7d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f99cd981b8fe91b8d82721fead80ee7d_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2508 wrote to memory of 2096	2508	f99cd981b8fe91b8d82721fead80ee7d_JaffaCakes118.exe	30
PID 2508 wrote to memory of 2096	2508	f99cd981b8fe91b8d82721fead80ee7d_JaffaCakes118.exe	30
PID 2508 wrote to memory of 2096	2508	f99cd981b8fe91b8d82721fead80ee7d_JaffaCakes118.exe	30
PID 2508 wrote to memory of 2096	2508	f99cd981b8fe91b8d82721fead80ee7d_JaffaCakes118.exe	30
PID 2508 wrote to memory of 2432	2508	f99cd981b8fe91b8d82721fead80ee7d_JaffaCakes118.exe	32
PID 2508 wrote to memory of 2432	2508	f99cd981b8fe91b8d82721fead80ee7d_JaffaCakes118.exe	32
PID 2508 wrote to memory of 2432	2508	f99cd981b8fe91b8d82721fead80ee7d_JaffaCakes118.exe	32
PID 2508 wrote to memory of 2432	2508	f99cd981b8fe91b8d82721fead80ee7d_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\f99cd981b8fe91b8d82721fead80ee7d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f99cd981b8fe91b8d82721fead80ee7d_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2508
- C:\Users\Admin\AppData\Local\Temp\f99cd981b8fe91b8d82721fead80ee7d_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f99cd981b8fe91b8d82721fead80ee7d_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2096
- C:\Users\Admin\AppData\Local\Temp\f99cd981b8fe91b8d82721fead80ee7d_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f99cd981b8fe91b8d82721fead80ee7d_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2432

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\68DB.043

Filesize
1KB

MD5
caa255ddb9fa09b7ec85a5001b3fdae0

SHA1
8ae341f0642615760ea9af294e607f507b89047b

SHA256
9511d09f42cd3758f74793b696c3b4f54d23a83ccbd1cb256efee7bc01d0802c

SHA512
95f1d802b905b61dcc708d86787eb1b9e62c4627837d94b0009bf052944e5749a02e92fd7777901aea6ccc17a2801a0d54e5b6ffb056caad11836639bd345006

Download Submit
C:\Users\Admin\AppData\Roaming\68DB.043

Filesize
600B

MD5
774e09359e1c118b7b72fcdede9b869e

SHA1
ba1f8c6812b26d5dcca76ecf72c78d91f306a01b

SHA256
2882bb5a6beb802241e5f98aa78cb496cfaa047b546f4a5f4ec4aa59a172c74e

SHA512
0bbf635856c9d13f837478e10569100ac1bef84c6d44c631c07a55d75519626cd210615e18ce08144bd408f5b857115ce23d3eeca5dfa3b291437996ec0cd225

Download Submit
C:\Users\Admin\AppData\Roaming\68DB.043

Filesize
996B

MD5
80885367d312dfc56332132605ce77ec

SHA1
446ad0a5f607d7a46cb754022ec46057d213cf9c

SHA256
e6ebe052f585081a28976bdbbe592427f42865d8e9157e8b43aac5e26742b132

SHA512
3c9dae254632dd93838c6f43fb7c7af929d63b434d99e7c25afeef4a08f79139e39182b659fa9cc00dc6e1e2e035b6b5db97a39f380d0de3419f0b06cfb60cd5

Download Submit
memory/2096-5-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2096-4-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2096-6-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2432-85-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2508-1-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2508-14-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2508-83-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2508-187-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads