cycbot | 11dbfd2d2b0b7d9b1eef6a2d88a027635b61594964f041d7a95aea4f0a885c54

General

Target

JaffaCakes118_f88d4d084ed98937d3aec41a99577c85.exe
Size

166KB
MD5

f88d4d084ed98937d3aec41a99577c85
SHA1

1db36babbe61a9a4bc7acc7b1b1f6e1d85d052c8
SHA256

11dbfd2d2b0b7d9b1eef6a2d88a027635b61594964f041d7a95aea4f0a885c54
SHA512

3677fbd8ccea612f02935ae005c7f8ce029955ecda1a57369dabff40417f600d02f0cd9b9bc12e20ab762e982992edc45af1e60cf01a8bc5a60f67698dfcf13f
SSDEEP

3072:gJumkEoT7gNXU/piZ8Gfduqllj0dk/VduxPVJh00BWwu5ViLGJ+:gJFkEG7gNXUxCVhlT4oKWC

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/2504-15-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2000-16-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2000-73-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2612-77-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2000-182-0x0000000000400000-0x0000000000445000-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_f88d4d084ed98937d3aec41a99577c85.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2000-2-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2504-13-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2504-12-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2504-15-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2000-16-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2000-73-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2612-75-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2612-77-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2000-182-0x0000000000400000-0x0000000000445000-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_f88d4d084ed98937d3aec41a99577c85.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_f88d4d084ed98937d3aec41a99577c85.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_f88d4d084ed98937d3aec41a99577c85.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2000 wrote to memory of 2504	2000	JaffaCakes118_f88d4d084ed98937d3aec41a99577c85.exe	31
PID 2000 wrote to memory of 2504	2000	JaffaCakes118_f88d4d084ed98937d3aec41a99577c85.exe	31
PID 2000 wrote to memory of 2504	2000	JaffaCakes118_f88d4d084ed98937d3aec41a99577c85.exe	31
PID 2000 wrote to memory of 2504	2000	JaffaCakes118_f88d4d084ed98937d3aec41a99577c85.exe	31
PID 2000 wrote to memory of 2612	2000	JaffaCakes118_f88d4d084ed98937d3aec41a99577c85.exe	33
PID 2000 wrote to memory of 2612	2000	JaffaCakes118_f88d4d084ed98937d3aec41a99577c85.exe	33
PID 2000 wrote to memory of 2612	2000	JaffaCakes118_f88d4d084ed98937d3aec41a99577c85.exe	33
PID 2000 wrote to memory of 2612	2000	JaffaCakes118_f88d4d084ed98937d3aec41a99577c85.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f88d4d084ed98937d3aec41a99577c85.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f88d4d084ed98937d3aec41a99577c85.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2000
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f88d4d084ed98937d3aec41a99577c85.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f88d4d084ed98937d3aec41a99577c85.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2504
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f88d4d084ed98937d3aec41a99577c85.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f88d4d084ed98937d3aec41a99577c85.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2612

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\CA03.D8B

Filesize
1KB

MD5
bf9db2aa1a1f44a7329ed05fa9998aee

SHA1
c3ba13f44ee44d8158dc544754c9b8e2610fba56

SHA256
0e66f30700697849e3e410796619e76389463ea4d9dbd7a8ff2e7954be034175

SHA512
90ee4d5aaba899b1a323d98c37496f30df8f45687d232585d55a7b4629661882cf50b2856c74c2d0d2fb3799b6386f129e6d82aca49f2b19370a491719972cff

Download Submit
C:\Users\Admin\AppData\Roaming\CA03.D8B

Filesize
600B

MD5
17d50f9e5773923b2ec5060ab0bd0f3f

SHA1
6d37200f68a4343e6039fdcff29ef63039850cf8

SHA256
8a12a672bdf5bb29d4a67ded41ce0a8ba38f3be9b7a32baadae14938d7c95f53

SHA512
07cbc97708e193bf2054de7cdff8ca8e62ed280819b640420c6348eaf03c098fe2cc29e9f13015bb15a25b1e227645a1f1a7941e71f31ec2526a5d01bfcc637e

Download Submit
C:\Users\Admin\AppData\Roaming\CA03.D8B

Filesize
996B

MD5
4f5097418d4577e3cdc2b44f2aea7acb

SHA1
65d521af1795b4554944ceef1364a3c03e72a4ce

SHA256
b551688ada66554c6f196ecbf014d23050b8ba33e2bfcf920e18f6355fda199b

SHA512
77692859308748aaf82cef320fddc793cb23df1f1e37efd720d30e59107f4013dd1862f69de2cff35166d590b474cf575e06bddfbe9956cf8660ed062f0654e0

Download Submit
memory/2000-2-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2000-182-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2000-1-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2000-16-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2000-73-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2504-12-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2504-15-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2504-13-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2612-77-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2612-75-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads