cycbot | 63e7fe69c0ce16a11967ac833ed1999577d084404b8cd3522adb8fd728ba7844

General

Target

92f5b775f7868663b3bdd93f8533d43a_JaffaCakes118.exe
Size

171KB
MD5

92f5b775f7868663b3bdd93f8533d43a
SHA1

4623e8835716bbaf5347519e5fd59e3ba51c9387
SHA256

63e7fe69c0ce16a11967ac833ed1999577d084404b8cd3522adb8fd728ba7844
SHA512

178afb7610ece549fd8144321b29b55fe721d82b7aa850fa4f4bc352e41ff247275d45017a4ebc66f197d2443d05c9bc5c0a46f792495d5e7424be0ad3f0d576
SSDEEP

3072:rDHO5uvbqCzXTvrTGUUQzqKXy6DholcHUkQeaecXkzvaqlLps66C55b//:GhCDnTrXzqKXy6dYgQeaecXOyq7s0/

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++.

Processes:

resource	yara_rule
behavioral1/memory/2404-14-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral1/memory/2756-15-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral1/memory/2756-82-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral1/memory/2064-85-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral1/memory/2756-188-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

Processes:

92f5b775f7868663b3bdd93f8533d43a_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\D6CF8\\93ED3.exe"	92f5b775f7868663b3bdd93f8533d43a_JaffaCakes118.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 9 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/2756-2-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral1/memory/2404-13-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral1/memory/2404-12-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral1/memory/2404-14-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral1/memory/2756-15-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral1/memory/2756-82-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral1/memory/2064-84-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral1/memory/2064-85-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral1/memory/2756-188-0x0000000000400000-0x000000000048E000-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

Processes:

92f5b775f7868663b3bdd93f8533d43a_JaffaCakes118.exe92f5b775f7868663b3bdd93f8533d43a_JaffaCakes118.exe92f5b775f7868663b3bdd93f8533d43a_JaffaCakes118.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	92f5b775f7868663b3bdd93f8533d43a_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	92f5b775f7868663b3bdd93f8533d43a_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	92f5b775f7868663b3bdd93f8533d43a_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

92f5b775f7868663b3bdd93f8533d43a_JaffaCakes118.exe

description	pid	Process	procid_target
PID 2756 wrote to memory of 2404	2756	92f5b775f7868663b3bdd93f8533d43a_JaffaCakes118.exe	30
PID 2756 wrote to memory of 2404	2756	92f5b775f7868663b3bdd93f8533d43a_JaffaCakes118.exe	30
PID 2756 wrote to memory of 2404	2756	92f5b775f7868663b3bdd93f8533d43a_JaffaCakes118.exe	30
PID 2756 wrote to memory of 2404	2756	92f5b775f7868663b3bdd93f8533d43a_JaffaCakes118.exe	30
PID 2756 wrote to memory of 2064	2756	92f5b775f7868663b3bdd93f8533d43a_JaffaCakes118.exe	32
PID 2756 wrote to memory of 2064	2756	92f5b775f7868663b3bdd93f8533d43a_JaffaCakes118.exe	32
PID 2756 wrote to memory of 2064	2756	92f5b775f7868663b3bdd93f8533d43a_JaffaCakes118.exe	32
PID 2756 wrote to memory of 2064	2756	92f5b775f7868663b3bdd93f8533d43a_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\92f5b775f7868663b3bdd93f8533d43a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\92f5b775f7868663b3bdd93f8533d43a_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2756
- C:\Users\Admin\AppData\Local\Temp\92f5b775f7868663b3bdd93f8533d43a_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\92f5b775f7868663b3bdd93f8533d43a_JaffaCakes118.exe startC:\Program Files (x86)\Internet Explorer\D3AD\8A3.exe%C:\Program Files (x86)\Internet Explorer\D3AD
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2404
- C:\Users\Admin\AppData\Local\Temp\92f5b775f7868663b3bdd93f8533d43a_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\92f5b775f7868663b3bdd93f8533d43a_JaffaCakes118.exe startC:\Program Files (x86)\F84F0\lvvm.exe%C:\Program Files (x86)\F84F0
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2064

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\D6CF8\84F0.6CF

Filesize
1KB

MD5
9846c75a2e53c822f9c3ac063c9a6843

SHA1
bbda14214b2836bbab4650d655e777d457dcc3c0

SHA256
43c4a76944df79bd542e4749583e4a1277d86ea8a8405831c5b02fe1d32ea1a4

SHA512
29be36b834e87c657c9bd670cb22a538a339c7afdb59779cfb101ab946b237569817141432b346a985e323e6febb28e71e02c566e00a78927d5d852e0a916f2a

Download Submit
C:\Users\Admin\AppData\Roaming\D6CF8\84F0.6CF

Filesize
600B

MD5
1e2de1888924d06c73b2588cac4276bc

SHA1
94a0197b89c843f32e87ef862b871be04208cd4e

SHA256
050cf87e45506dd18922469816f4cc1bd814a282a5ff8996c888df94dd5c1d47

SHA512
100f322681fef3c805d856a6f69c55bf4b651858b0c9f5587fecc963ddb5db8f8cd9a66a3ec82afb902a2d9de8dd88915ed11f8a97279a0a1e95b1a57bbaa49f

Download Submit
C:\Users\Admin\AppData\Roaming\D6CF8\84F0.6CF

Filesize
996B

MD5
a307da701e5bea32b746f1a8a614cf8b

SHA1
e7d4a5053eba286cb1d59c37aaab513233a491da

SHA256
a11609dac7180ceefee0726bb5ce77f7a60df72aed0bb8b29f367e291eb372bc

SHA512
4dfc30900cae418dc32c3e8a610223d0de0ebc9a19586f7d6c83e26f9b4dc3a4b1f3c9c0ace3e779fb6950e9e10c7e3243542658d47b7bcbd02440c2ea46ac9a

Download Submit
memory/2064-85-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2064-84-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2404-14-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2404-12-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2404-13-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2756-15-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2756-82-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2756-1-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2756-2-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2756-188-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads