cycbot | 51967276621912b1988a5804d341ebc0c2b684adbbbe60455fbac8399005eeb5

General

Target

e4287f9f12d1f051548d3f8a9553e083_JaffaCakes118.exe
Size

177KB
MD5

e4287f9f12d1f051548d3f8a9553e083
SHA1

0d3f480eddbb7cb5606bf30cb20b38a2cc772c71
SHA256

51967276621912b1988a5804d341ebc0c2b684adbbbe60455fbac8399005eeb5
SHA512

ce1d18c9ba4250d60d5bcae50c0913877cd91c71eddec1151bcfd8f2dbd49a1dc66527338dd46b94c088ae7cbf57cb40db63a5af21638afd5639a8233f34d9e2
SSDEEP

3072:zQ7dWmnpG/n8Ayds8XI0U1G4tXPV1k9J4OpWtJ877tbrSzb1MgPRjqVGXQg:zQwmEks8XR2G4v1UJh4m7J3Ib1Ps

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 4 IoCs

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

resource	yara_rule
behavioral1/memory/2316-8-0x0000000000400000-0x0000000000483000-memory.dmp	family_cycbot
behavioral1/memory/2236-15-0x0000000000400000-0x0000000000483000-memory.dmp	family_cycbot
behavioral1/memory/2236-71-0x0000000000400000-0x0000000000483000-memory.dmp	family_cycbot
behavioral1/memory/2672-74-0x0000000000400000-0x0000000000483000-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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\dwm.exe"	e4287f9f12d1f051548d3f8a9553e083_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 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2236-2-0x0000000000400000-0x0000000000483000-memory.dmp	upx
behavioral1/memory/2316-8-0x0000000000400000-0x0000000000483000-memory.dmp	upx
behavioral1/memory/2316-7-0x0000000000400000-0x0000000000483000-memory.dmp	upx
behavioral1/memory/2236-15-0x0000000000400000-0x0000000000483000-memory.dmp	upx
behavioral1/memory/2236-71-0x0000000000400000-0x0000000000483000-memory.dmp	upx
behavioral1/memory/2672-74-0x0000000000400000-0x0000000000483000-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	e4287f9f12d1f051548d3f8a9553e083_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e4287f9f12d1f051548d3f8a9553e083_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e4287f9f12d1f051548d3f8a9553e083_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2236 wrote to memory of 2316	2236	e4287f9f12d1f051548d3f8a9553e083_JaffaCakes118.exe	30
PID 2236 wrote to memory of 2316	2236	e4287f9f12d1f051548d3f8a9553e083_JaffaCakes118.exe	30
PID 2236 wrote to memory of 2316	2236	e4287f9f12d1f051548d3f8a9553e083_JaffaCakes118.exe	30
PID 2236 wrote to memory of 2316	2236	e4287f9f12d1f051548d3f8a9553e083_JaffaCakes118.exe	30
PID 2236 wrote to memory of 2672	2236	e4287f9f12d1f051548d3f8a9553e083_JaffaCakes118.exe	33
PID 2236 wrote to memory of 2672	2236	e4287f9f12d1f051548d3f8a9553e083_JaffaCakes118.exe	33
PID 2236 wrote to memory of 2672	2236	e4287f9f12d1f051548d3f8a9553e083_JaffaCakes118.exe	33
PID 2236 wrote to memory of 2672	2236	e4287f9f12d1f051548d3f8a9553e083_JaffaCakes118.exe	33

C:\Users\Admin\AppData\Local\Temp\e4287f9f12d1f051548d3f8a9553e083_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e4287f9f12d1f051548d3f8a9553e083_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2236
- C:\Users\Admin\AppData\Local\Temp\e4287f9f12d1f051548d3f8a9553e083_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\e4287f9f12d1f051548d3f8a9553e083_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2316
- C:\Users\Admin\AppData\Local\Temp\e4287f9f12d1f051548d3f8a9553e083_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\e4287f9f12d1f051548d3f8a9553e083_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2672

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\FE80.6E4

Filesize
600B

MD5
e3127ded1dad575c9a5afb8dd182cf96

SHA1
264a12b4e83262a5851fd1449c9b030157ffd677

SHA256
984cdc16a2d672f59e6d9f9c45cce6ef9f09b4d5ff6daa9a6a8a3086ec4110dd

SHA512
3d4b9f6c67295301c55eb3aae276028d11980a1a0cf17874ea1948cec530c4ffba9b6b8bdddaaa61b247a49b5ddbce48cd3e93d0309784fc7a13714fafb978a5

Download Submit
C:\Users\Admin\AppData\Roaming\FE80.6E4

Filesize
996B

MD5
8b9171dbe8d333d88c6226cc33093acd

SHA1
109b16e56457b3b6bdfce12a72ee8d78d9e208de

SHA256
691910951bf022e405e6642545c97296411bb8e4741c6bf60a9b1f4961948354

SHA512
c188ba398a9cf42174c46bde2c63c8b7a87f9e9ea041125dc995005b474a2e58ef95d4f5ae34c3087b6a38878d827f5b0a9f5088f95bbd48ee99faf0cdd7d81c

Download Submit
memory/2236-1-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2236-2-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2236-15-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2236-71-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2316-5-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2316-8-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2316-7-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2672-74-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads