cycbot | a13d22fbcf3e5099e6f13ee80ac8d416a9f47b796775597af3e082b090feaced

General

Target

JaffaCakes118_dec584451a93a8cfd4e3631ee00a2cc2.exe
Size

153KB
MD5

dec584451a93a8cfd4e3631ee00a2cc2
SHA1

d0132f17b5d4057bdc633c62ad04c85642dfc994
SHA256

a13d22fbcf3e5099e6f13ee80ac8d416a9f47b796775597af3e082b090feaced
SHA512

6599fc29a5095fd0dccfd1582e7548abf523f51e537be50cbaf8dd8d88b7b6021634eab545297afb4c326290e3fffaecc9e15d96e285d53913db7308658a5fc0
SSDEEP

3072:DfnC3neLjSxerb1feK8UqoPVyqahAUYsHRCIgSxFe2nrH+GerndB:DfMn2+xerJp8UqolFlpOeuPeDd

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/2188-6-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2992-14-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2992-83-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2044-87-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2992-159-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2992-203-0x0000000000400000-0x0000000000442000-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"	JaffaCakes118_dec584451a93a8cfd4e3631ee00a2cc2.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2992-2-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2188-5-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2188-6-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2992-14-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2992-83-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2044-87-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2044-85-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2992-159-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2992-203-0x0000000000400000-0x0000000000442000-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_dec584451a93a8cfd4e3631ee00a2cc2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_dec584451a93a8cfd4e3631ee00a2cc2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_dec584451a93a8cfd4e3631ee00a2cc2.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2992 wrote to memory of 2188	2992	JaffaCakes118_dec584451a93a8cfd4e3631ee00a2cc2.exe	30
PID 2992 wrote to memory of 2188	2992	JaffaCakes118_dec584451a93a8cfd4e3631ee00a2cc2.exe	30
PID 2992 wrote to memory of 2188	2992	JaffaCakes118_dec584451a93a8cfd4e3631ee00a2cc2.exe	30
PID 2992 wrote to memory of 2188	2992	JaffaCakes118_dec584451a93a8cfd4e3631ee00a2cc2.exe	30
PID 2992 wrote to memory of 2044	2992	JaffaCakes118_dec584451a93a8cfd4e3631ee00a2cc2.exe	33
PID 2992 wrote to memory of 2044	2992	JaffaCakes118_dec584451a93a8cfd4e3631ee00a2cc2.exe	33
PID 2992 wrote to memory of 2044	2992	JaffaCakes118_dec584451a93a8cfd4e3631ee00a2cc2.exe	33
PID 2992 wrote to memory of 2044	2992	JaffaCakes118_dec584451a93a8cfd4e3631ee00a2cc2.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dec584451a93a8cfd4e3631ee00a2cc2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dec584451a93a8cfd4e3631ee00a2cc2.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2992
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dec584451a93a8cfd4e3631ee00a2cc2.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dec584451a93a8cfd4e3631ee00a2cc2.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2188
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dec584451a93a8cfd4e3631ee00a2cc2.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dec584451a93a8cfd4e3631ee00a2cc2.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2044

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\48AF.F2A

Filesize
600B

MD5
93c22a640ea187e6b56a2a4c89c71f24

SHA1
c4291cd71cfd12c5d2fdae4bd39ac07f724dc019

SHA256
453665d0fced96c598a4e21320181a621c6e6b53aceb3cd77b6df9b9cbb44875

SHA512
cba530ce4e4b969b060a476c430720a40dd25ec252e3cb531dae3609d56583a6697e67b26349f8148beeb7d0f7c028ad81d06f9420bb124e37b575581cddb4da

Download Submit
C:\Users\Admin\AppData\Roaming\48AF.F2A

Filesize
1KB

MD5
db5f901eaca1807b5977ea51270e1649

SHA1
173754e2892dc91dc5b8f0194953dea3fe7e9668

SHA256
a1c012d8c532b4910a5eb201b836f632ce2cb6b83de43545d8ce51ca6ba18c4c

SHA512
7f8852bc994bca074e6cb719e0d66a68bdc3dbbe0f10e17d65761d2a6ff1f5fc97d9d3d8b168ad273ffdd6c0cc7d13a46b005e586a4936d41a9a329ff3b6aeaf

Download Submit
C:\Users\Admin\AppData\Roaming\48AF.F2A

Filesize
996B

MD5
12dd69aa52e1d8eb7f932e0462fb24b6

SHA1
ff15de98af2270fa7764518aea303cbfe97aa4e4

SHA256
cf61e9e258255e25d54610f904d2f1a416456661a681bf07577925fa699053ea

SHA512
3007ec808d367ff141deae80f1358d7fdebb7dd737ac4b235a539784ab0b0f7ba10fe99039e180bf3dde69938a7684ad87902a104af49aaec7150ee0c4559ef5

Download Submit
memory/2044-85-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2044-87-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2188-6-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2188-5-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2992-83-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2992-14-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2992-1-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2992-159-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2992-2-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2992-203-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads