cycbot | a20a0fa81c86275ebbb5aa0d465adc297391172e034ba4c3a9f73b5e34fe0922

General

Target

d4d2ed9af22b504d28a3c71ba44fb931_JaffaCakes118.exe
Size

164KB
MD5

d4d2ed9af22b504d28a3c71ba44fb931
SHA1

785efcd0d606fa798b991bd9cb3cf945e7193a53
SHA256

a20a0fa81c86275ebbb5aa0d465adc297391172e034ba4c3a9f73b5e34fe0922
SHA512

4d9d82edf3faaf296955fc01717225223f7f10abd9c2566aba2d4e2bcf437548488086019400520ae7d697f7840237f147dd26274e44ffa2bf53176565306e55
SSDEEP

3072:Y1wgtKwbbsgG6ZpBcxoOevxh2mo/uJ3bWhj6f0:Y1HQo9pZfmJuJ3q

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/2784-12-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2296-13-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2296-68-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2260-70-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2296-185-0x0000000000400000-0x0000000000445000-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"	d4d2ed9af22b504d28a3c71ba44fb931_JaffaCakes118.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2296-2-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2784-12-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2296-13-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2296-68-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2260-70-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2296-185-0x0000000000400000-0x0000000000445000-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	d4d2ed9af22b504d28a3c71ba44fb931_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d4d2ed9af22b504d28a3c71ba44fb931_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d4d2ed9af22b504d28a3c71ba44fb931_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2296 wrote to memory of 2784	2296	d4d2ed9af22b504d28a3c71ba44fb931_JaffaCakes118.exe	30
PID 2296 wrote to memory of 2784	2296	d4d2ed9af22b504d28a3c71ba44fb931_JaffaCakes118.exe	30
PID 2296 wrote to memory of 2784	2296	d4d2ed9af22b504d28a3c71ba44fb931_JaffaCakes118.exe	30
PID 2296 wrote to memory of 2784	2296	d4d2ed9af22b504d28a3c71ba44fb931_JaffaCakes118.exe	30
PID 2296 wrote to memory of 2260	2296	d4d2ed9af22b504d28a3c71ba44fb931_JaffaCakes118.exe	32
PID 2296 wrote to memory of 2260	2296	d4d2ed9af22b504d28a3c71ba44fb931_JaffaCakes118.exe	32
PID 2296 wrote to memory of 2260	2296	d4d2ed9af22b504d28a3c71ba44fb931_JaffaCakes118.exe	32
PID 2296 wrote to memory of 2260	2296	d4d2ed9af22b504d28a3c71ba44fb931_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\d4d2ed9af22b504d28a3c71ba44fb931_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d4d2ed9af22b504d28a3c71ba44fb931_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2296
- C:\Users\Admin\AppData\Local\Temp\d4d2ed9af22b504d28a3c71ba44fb931_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\d4d2ed9af22b504d28a3c71ba44fb931_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2784
- C:\Users\Admin\AppData\Local\Temp\d4d2ed9af22b504d28a3c71ba44fb931_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\d4d2ed9af22b504d28a3c71ba44fb931_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2260

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\8D11.A27

Filesize
1KB

MD5
750310f376a94e763272746d926d08ab

SHA1
0bdcda1c41b843bf28aa7dceb12e8f0f276ca6f8

SHA256
10f9938f22e2e40ba99ddf67a41d14ce11051048d8a122fa666bbe299a30e966

SHA512
33d4c11300ab8f545477c1ad59eee918fd77f73f5ac5f164d34a593d86c9a62b033139f774e3961509c5521cc047483f02fd07a83774db436755f16924c94e06

Download Submit
C:\Users\Admin\AppData\Roaming\8D11.A27

Filesize
600B

MD5
689fc798606fb7dec7908d661f0749cc

SHA1
3cba674c19e4166db78bb76062875fce1d34aff5

SHA256
626a5275c91a60f237d87908530313ed76121a8ba8b41dc5d573e7c3d44c1b1e

SHA512
ec9e36447683661a83d8b5b7646ab9bf1b9a40ade100b91c64260d1ac3aaf1594c3ccd7a05871da3a8aff7f49df7e344868afd87fc29babe45ae0c1ed4376dcb

Download Submit
C:\Users\Admin\AppData\Roaming\8D11.A27

Filesize
996B

MD5
d976ee97831b7ae81b628abb46d165eb

SHA1
2974ff0e9c446841e75ef34ef7d2b9c1e2381d30

SHA256
8c2938147e6b3836577ca6e5054831d30fe9cc37d8f821b16fc190eb48d27ec2

SHA512
c0760ccf6c426f6c317286f4b6864dcd88fb467783ae62c366fe77b2fa783e352ac32ac7058f9549e9ab97a5e8b03569782e345feaa88487852bcab544e8dabb

Download Submit
memory/2260-70-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2296-1-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2296-2-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2296-13-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2296-68-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2296-185-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2784-12-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads