cycbot | 9cdba55daeb92f0de2e841554171327576790cd52b265fa27d77191045aa5647

General

Target

f5da2590e5938d982c22eab6a5f6d185_JaffaCakes118.exe
Size

182KB
MD5

f5da2590e5938d982c22eab6a5f6d185
SHA1

42fe806f5872d9816bc16c0ee44e745d41581e11
SHA256

9cdba55daeb92f0de2e841554171327576790cd52b265fa27d77191045aa5647
SHA512

f955ec401d6207b351107abba984d0da8c0cf9c9f0327a900ff53424f3b8331ee811425aca171c3118c515c726d05bb53c408430c76a58e27770853367e1e8af
SSDEEP

3072:CIh75WqHtNw8OC7/GWPcZDpjwN/0D0gjqE8NE5Ulx6Mi/pY8Efd:jtRNNwE/GRnjq/c0gjKE6lx6px7

Score

10^/10

cycbot backdoor discovery 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/2772-13-0x0000000000400000-0x000000000044E000-memory.dmp	family_cycbot
behavioral1/memory/2772-14-0x0000000000400000-0x000000000044E000-memory.dmp	family_cycbot
behavioral1/memory/2484-15-0x0000000000400000-0x000000000044E000-memory.dmp	family_cycbot
behavioral1/memory/2328-85-0x0000000000400000-0x000000000044E000-memory.dmp	family_cycbot
behavioral1/memory/2484-198-0x0000000000400000-0x000000000044E000-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

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2484-2-0x0000000000400000-0x000000000044E000-memory.dmp	upx
behavioral1/memory/2772-13-0x0000000000400000-0x000000000044E000-memory.dmp	upx
behavioral1/memory/2772-14-0x0000000000400000-0x000000000044E000-memory.dmp	upx
behavioral1/memory/2484-15-0x0000000000400000-0x000000000044E000-memory.dmp	upx
behavioral1/memory/2328-84-0x0000000000400000-0x000000000044E000-memory.dmp	upx
behavioral1/memory/2328-85-0x0000000000400000-0x000000000044E000-memory.dmp	upx
behavioral1/memory/2484-198-0x0000000000400000-0x000000000044E000-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	f5da2590e5938d982c22eab6a5f6d185_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f5da2590e5938d982c22eab6a5f6d185_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f5da2590e5938d982c22eab6a5f6d185_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2484 wrote to memory of 2772	2484	f5da2590e5938d982c22eab6a5f6d185_JaffaCakes118.exe	30
PID 2484 wrote to memory of 2772	2484	f5da2590e5938d982c22eab6a5f6d185_JaffaCakes118.exe	30
PID 2484 wrote to memory of 2772	2484	f5da2590e5938d982c22eab6a5f6d185_JaffaCakes118.exe	30
PID 2484 wrote to memory of 2772	2484	f5da2590e5938d982c22eab6a5f6d185_JaffaCakes118.exe	30
PID 2484 wrote to memory of 2328	2484	f5da2590e5938d982c22eab6a5f6d185_JaffaCakes118.exe	32
PID 2484 wrote to memory of 2328	2484	f5da2590e5938d982c22eab6a5f6d185_JaffaCakes118.exe	32
PID 2484 wrote to memory of 2328	2484	f5da2590e5938d982c22eab6a5f6d185_JaffaCakes118.exe	32
PID 2484 wrote to memory of 2328	2484	f5da2590e5938d982c22eab6a5f6d185_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\f5da2590e5938d982c22eab6a5f6d185_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f5da2590e5938d982c22eab6a5f6d185_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2484
- C:\Users\Admin\AppData\Local\Temp\f5da2590e5938d982c22eab6a5f6d185_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f5da2590e5938d982c22eab6a5f6d185_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2772
- C:\Users\Admin\AppData\Local\Temp\f5da2590e5938d982c22eab6a5f6d185_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f5da2590e5938d982c22eab6a5f6d185_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2328

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\78F2.B41

Filesize
1KB

MD5
ddd2a41b8db62e5922a3a0f4f2786b8d

SHA1
9a3435c4bbafc3afe48982f2b50a7538dac3fcbb

SHA256
bc2c7a450555c7152a0bad4c062f5d5bd5b34bbe10512c0d32b4fb68d3127078

SHA512
fb05cf865f9a44f545dd60544a46db11dbec8bb448e9afd7e0d1c8469e357c0d19c1eb7940bd92468f3e91882cf49ea2ff6ace3d03e68789cb9c26ac7ed2aa42

Download Submit
C:\Users\Admin\AppData\Roaming\78F2.B41

Filesize
600B

MD5
6af4faedee1a016b7f656a2e6d27c62e

SHA1
74ebe767b463ac91cdd82220a745df83e2c77fb1

SHA256
8b87f8088b84c4b0762b2cd0d944a7301a3a3fd2ec9c90ec789fe6e5990a0dfc

SHA512
77a75213600005bbeb7c1a89fae98399454abafa34b4766fe9fa058fa0a2e65813994d4ad4a4c096a3e448376570cef4e5cd7ce16c8418fb43e0a624d53875b5

Download Submit
memory/2328-83-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2328-84-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2328-85-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2484-1-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2484-2-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2484-15-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2484-198-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2772-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2772-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing