cycbot | 7a349f46b9cbb2817d534f42f535a644c53474c34b4dd33c1eed3abb897d5f66

General

Target

JaffaCakes118_16d7669579c92f0489de1db86786e809.exe
Size

177KB
MD5

16d7669579c92f0489de1db86786e809
SHA1

05e8608893494ddb9bc590b33be92f748fa5f774
SHA256

7a349f46b9cbb2817d534f42f535a644c53474c34b4dd33c1eed3abb897d5f66
SHA512

de0a53998fdf9d6ab533c2b3b58f7ec144943e05d8adc2d5f7d43f9883e3f1fff2db4de51a9082d136a0e7be82a594decea8b2a6e399787df103859b101228b2
SSDEEP

3072:xDfR/290JzmWEZI1aWOm2BszvGm+mLZY78gTK6Ove/FbdqRK2:xrRLzmmaJBszvimlYLke/e

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 8 IoCs

Cycbot is a backdoor and trojan written in C++.

resource	yara_rule
behavioral1/memory/3036-8-0x0000000000400000-0x0000000000485000-memory.dmp	family_cycbot
behavioral1/memory/1892-15-0x0000000000400000-0x0000000000485000-memory.dmp	family_cycbot
behavioral1/memory/1892-16-0x0000000000400000-0x0000000000485000-memory.dmp	family_cycbot
behavioral1/memory/3036-81-0x0000000000400000-0x0000000000485000-memory.dmp	family_cycbot
behavioral1/memory/1892-80-0x0000000000400000-0x0000000000485000-memory.dmp	family_cycbot
behavioral1/memory/608-85-0x0000000000400000-0x0000000000485000-memory.dmp	family_cycbot
behavioral1/memory/1892-86-0x0000000000400000-0x0000000000485000-memory.dmp	family_cycbot
behavioral1/memory/1892-151-0x0000000000400000-0x0000000000485000-memory.dmp	family_cycbot

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\dwm.exe"	JaffaCakes118_16d7669579c92f0489de1db86786e809.exe

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

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1892-2-0x0000000000400000-0x0000000000485000-memory.dmp	upx
behavioral1/memory/3036-5-0x0000000000400000-0x0000000000485000-memory.dmp	upx
behavioral1/memory/3036-8-0x0000000000400000-0x0000000000485000-memory.dmp	upx
behavioral1/memory/3036-7-0x0000000000400000-0x0000000000485000-memory.dmp	upx
behavioral1/memory/1892-15-0x0000000000400000-0x0000000000485000-memory.dmp	upx
behavioral1/memory/1892-16-0x0000000000400000-0x0000000000485000-memory.dmp	upx
behavioral1/memory/3036-81-0x0000000000400000-0x0000000000485000-memory.dmp	upx
behavioral1/memory/1892-80-0x0000000000400000-0x0000000000485000-memory.dmp	upx
behavioral1/memory/608-85-0x0000000000400000-0x0000000000485000-memory.dmp	upx
behavioral1/memory/1892-86-0x0000000000400000-0x0000000000485000-memory.dmp	upx
behavioral1/memory/1892-151-0x0000000000400000-0x0000000000485000-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_16d7669579c92f0489de1db86786e809.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_16d7669579c92f0489de1db86786e809.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_16d7669579c92f0489de1db86786e809.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1892 wrote to memory of 3036	1892	JaffaCakes118_16d7669579c92f0489de1db86786e809.exe	28
PID 1892 wrote to memory of 3036	1892	JaffaCakes118_16d7669579c92f0489de1db86786e809.exe	28
PID 1892 wrote to memory of 3036	1892	JaffaCakes118_16d7669579c92f0489de1db86786e809.exe	28
PID 1892 wrote to memory of 3036	1892	JaffaCakes118_16d7669579c92f0489de1db86786e809.exe	28
PID 1892 wrote to memory of 608	1892	JaffaCakes118_16d7669579c92f0489de1db86786e809.exe	30
PID 1892 wrote to memory of 608	1892	JaffaCakes118_16d7669579c92f0489de1db86786e809.exe	30
PID 1892 wrote to memory of 608	1892	JaffaCakes118_16d7669579c92f0489de1db86786e809.exe	30
PID 1892 wrote to memory of 608	1892	JaffaCakes118_16d7669579c92f0489de1db86786e809.exe	30

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_16d7669579c92f0489de1db86786e809.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_16d7669579c92f0489de1db86786e809.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1892
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_16d7669579c92f0489de1db86786e809.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_16d7669579c92f0489de1db86786e809.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3036
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_16d7669579c92f0489de1db86786e809.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_16d7669579c92f0489de1db86786e809.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:608

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

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\EDE7.655

Filesize
1KB

MD5
97afa3799b19eb3d6331a25708a367da

SHA1
23b12593ed2e1808d9c00f944fab604b2fc13036

SHA256
e687e07bd75643af0d98fdca1b8c8740f01f9f60af2cb7a5ca5b93727edea1db

SHA512
df79f43b5d11e881036ed2b3919d325c76aa4c11762c6b2e0734b5c18332586c7dbb4252ed6cf8cf890e46181f0aa25ff13054266de11919639c159d1075d25e

Download Submit
C:\Users\Admin\AppData\Roaming\EDE7.655

Filesize
600B

MD5
d907bfd0fe22a413bfef94eb32456717

SHA1
5ee8e9810e1efda23c56a1778b2b660d239cef94

SHA256
4f3ec9c372ab78c0a6685873461029761df56d612b4ac67111e71c2ed369dbb0

SHA512
16ef88e89f7b79de497a19a9c5a75ea54d30437af7d71f8e5ab5366761aa778f21a6804f247d3b910a35fc8206a82558b2a13e16f47832b0d5fcd2b0e144542b

Download Submit
C:\Users\Admin\AppData\Roaming\EDE7.655

Filesize
996B

MD5
ae60ef1741247dfceea29a43a2e45ffb

SHA1
7c6c021899049020f4e64dee25f75d624fe593e1

SHA256
b2005aa3e7f7507604f165cf22127f2b7fe9e8d4abc6b24b3bec98f7949fe649

SHA512
59bb733892e8f2074d0632a4adf2a124c5c1560f1c5fab45a33debba4e52694d2d74e0f87418440d7791c13c758d0ed504f1565d5b017a85018672f2a9f8b94b

Download Submit
memory/608-85-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/608-83-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/608-148-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/1892-16-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/1892-15-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/1892-1-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/1892-80-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/1892-151-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/1892-2-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/1892-86-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/3036-7-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/3036-81-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/3036-8-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/3036-5-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads