cycbot | cdbc3dbe90cc1723a4ed36a1ea6e1721cfbcb782b08bf2b9ac3c5e58244da66d

General

Target

JaffaCakes118_14c5c223f563c28c44974b440daab1d3.exe
Size

182KB
MD5

14c5c223f563c28c44974b440daab1d3
SHA1

226e4cc01b6d5bf8e9fa68d2248cdd19e4552fa4
SHA256

cdbc3dbe90cc1723a4ed36a1ea6e1721cfbcb782b08bf2b9ac3c5e58244da66d
SHA512

a141fcf364e8d42acf40875e01ef8faf7f6df6ba418eb6316fe0ba752f5cd32dc442aef0715421aa5d12aee151bfb7db80e0553dea0c88e7df834be1a2b4c7e6
SSDEEP

3072:CzSMe5SubW2NYWV9xfbwwy1b4hcUXgyjFRdM1478jFW2/Y:uSMraWTyMbYlLjFjM7F

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 6 IoCs

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

resource	yara_rule
behavioral1/memory/2848-16-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral1/memory/2380-17-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral1/memory/2380-18-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral1/memory/1352-128-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral1/memory/2380-129-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral1/memory/2380-303-0x0000000000400000-0x0000000000490000-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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\0DDE0\\D97D0.exe"	JaffaCakes118_14c5c223f563c28c44974b440daab1d3.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 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2380-3-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/2848-16-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/2380-17-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/2380-18-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral1/memory/1352-128-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/2380-129-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/2380-303-0x0000000000400000-0x0000000000490000-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_14c5c223f563c28c44974b440daab1d3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_14c5c223f563c28c44974b440daab1d3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_14c5c223f563c28c44974b440daab1d3.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 2848	2380	JaffaCakes118_14c5c223f563c28c44974b440daab1d3.exe	30
PID 2380 wrote to memory of 2848	2380	JaffaCakes118_14c5c223f563c28c44974b440daab1d3.exe	30
PID 2380 wrote to memory of 2848	2380	JaffaCakes118_14c5c223f563c28c44974b440daab1d3.exe	30
PID 2380 wrote to memory of 2848	2380	JaffaCakes118_14c5c223f563c28c44974b440daab1d3.exe	30
PID 2380 wrote to memory of 1352	2380	JaffaCakes118_14c5c223f563c28c44974b440daab1d3.exe	32
PID 2380 wrote to memory of 1352	2380	JaffaCakes118_14c5c223f563c28c44974b440daab1d3.exe	32
PID 2380 wrote to memory of 1352	2380	JaffaCakes118_14c5c223f563c28c44974b440daab1d3.exe	32
PID 2380 wrote to memory of 1352	2380	JaffaCakes118_14c5c223f563c28c44974b440daab1d3.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_14c5c223f563c28c44974b440daab1d3.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_14c5c223f563c28c44974b440daab1d3.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_14c5c223f563c28c44974b440daab1d3.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_14c5c223f563c28c44974b440daab1d3.exe startC:\Program Files (x86)\LP\D050\18D.exe%C:\Program Files (x86)\LP\D050
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2848
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_14c5c223f563c28c44974b440daab1d3.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_14c5c223f563c28c44974b440daab1d3.exe startC:\Program Files (x86)\E0F0D\lvvm.exe%C:\Program Files (x86)\E0F0D
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1352

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\0DDE0\0F0D.DDE

Filesize
996B

MD5
5cfdc6ce87f521c5c6fcfa693009aa64

SHA1
aa514f75edce64f8b90b08574ba15dd6b9ec0b7d

SHA256
7e1c1481feda7cd81891a2cf27dc07935ffba47425fdffd8796f0c0a5b85c4a6

SHA512
a9bad42832b952c6e76e107861f962338f0254e4a5ab591ded4c1a03c99099ee0597641fa9f00d28c544c8ecd5aad62896719822a430e70e5576f5da77600fb9

Download Submit
C:\Users\Admin\AppData\Roaming\0DDE0\0F0D.DDE

Filesize
600B

MD5
109cfc35ea3d32966d99b7f6ff7f1c71

SHA1
f4a5aa621d915918232787e9d93a2ad071e232d5

SHA256
9659721956f9f1ccbd3ccd9e82e5c739007420e5f1fc284bc24a8af2e568e437

SHA512
7668aefc4338ccb1e062809fc124e906ee4f5f0ec4bad58ab15f9d4c39bf708da1b8eb4392dffa5803d30f07200cfb61c7b58c5e81fc5944f0c78d3f49aa48b8

Download Submit
C:\Users\Admin\AppData\Roaming\0DDE0\0F0D.DDE

Filesize
1KB

MD5
8107244db3184a3d162e236584288787

SHA1
8b80ffa834385c78ef418b39c26b37276a36bc69

SHA256
4dc4a0a71f1f667cf3e36cc16f79481d04bbac7443d439f53fc6ed7df21bdfdc

SHA512
f0cd90cd9dead4b99fe5d15fdb85cecd5262cea823b8660b935454a21d28bed952995610b4ddb65f8cdfd44bcdf84acebc926ddde9825ab3030bbed8ada92cb7

Download Submit
memory/1352-128-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2380-129-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2380-17-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2380-18-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2380-0-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2380-3-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2380-2-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2380-303-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2848-16-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2848-14-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads