cycbot | 2dd62314387ddb349ef02b420be993317d930f4b6a3d75b05eda95aa79b976ac

General

Target

JaffaCakes118_0073617452e565600638d5fd0eacbc06.exe
Size

177KB
MD5

0073617452e565600638d5fd0eacbc06
SHA1

6a424cf725b8f11f9fa06d25ab751f92aa877387
SHA256

2dd62314387ddb349ef02b420be993317d930f4b6a3d75b05eda95aa79b976ac
SHA512

ff811c74974adf0c02019e0ebd100054e67425be862d03e2cb0e38cd2934da2478dfdbd949c943943bf98b34ebe5b0ee13bb0a78fdb29c86798a185713046477
SSDEEP

3072:foWxa8ej/V1f6O7rX4HhAZ8VSuTitInIpuLwkAjanQ++/tr9AXlNzE/EIQ:foWQ7/VR6OgHOC0gI+R2L++1YlNo/Er

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/2900-13-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral1/memory/2884-15-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral1/memory/2884-16-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral1/memory/1972-130-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral1/memory/2884-131-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral1/memory/2884-313-0x0000000000400000-0x0000000000491000-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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\C14E0\\62783.exe"	JaffaCakes118_0073617452e565600638d5fd0eacbc06.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 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2884-2-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/2900-13-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/2884-15-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/2884-16-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral1/memory/1972-130-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/2884-131-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/2884-313-0x0000000000400000-0x0000000000491000-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_0073617452e565600638d5fd0eacbc06.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_0073617452e565600638d5fd0eacbc06.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_0073617452e565600638d5fd0eacbc06.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2884 wrote to memory of 2900	2884	JaffaCakes118_0073617452e565600638d5fd0eacbc06.exe	30
PID 2884 wrote to memory of 2900	2884	JaffaCakes118_0073617452e565600638d5fd0eacbc06.exe	30
PID 2884 wrote to memory of 2900	2884	JaffaCakes118_0073617452e565600638d5fd0eacbc06.exe	30
PID 2884 wrote to memory of 2900	2884	JaffaCakes118_0073617452e565600638d5fd0eacbc06.exe	30
PID 2884 wrote to memory of 1972	2884	JaffaCakes118_0073617452e565600638d5fd0eacbc06.exe	32
PID 2884 wrote to memory of 1972	2884	JaffaCakes118_0073617452e565600638d5fd0eacbc06.exe	32
PID 2884 wrote to memory of 1972	2884	JaffaCakes118_0073617452e565600638d5fd0eacbc06.exe	32
PID 2884 wrote to memory of 1972	2884	JaffaCakes118_0073617452e565600638d5fd0eacbc06.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0073617452e565600638d5fd0eacbc06.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0073617452e565600638d5fd0eacbc06.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2884
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0073617452e565600638d5fd0eacbc06.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0073617452e565600638d5fd0eacbc06.exe startC:\Program Files (x86)\LP\832C\E62.exe%C:\Program Files (x86)\LP\832C
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2900
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0073617452e565600638d5fd0eacbc06.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0073617452e565600638d5fd0eacbc06.exe startC:\Program Files (x86)\E0FA4\lvvm.exe%C:\Program Files (x86)\E0FA4
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1972

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

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Downloads

C:\Users\Admin\AppData\Roaming\C14E0\0FA4.14E

Filesize
996B

MD5
2ff9ea255b7d89af455a605f79eadebf

SHA1
e7ee7c76a611396db5b1afc2e86f54668f9f4f14

SHA256
5df4498810b53db13e3e143576261d67e7200106fe604c2aec0b42ea3dd011af

SHA512
1e676bcfc5b4a2fc14435ac66cc05cbabfeba85b83779e6972cb6c0112ac6ca8da92ded5fe56f37a5891f9e1d30c5c351930863595546b48c838c9dc55536597

Download Submit
C:\Users\Admin\AppData\Roaming\C14E0\0FA4.14E

Filesize
1KB

MD5
d83d25fdad5d877f316a9084eb8d1562

SHA1
501952094fd136ef54a2a90202c2d9fbbef135d4

SHA256
f08393c3d9cc07c6b13eedf5cf58fcffb9628f2aa437065726b81f2009d2d3bb

SHA512
4b9c9ef71316f1b3ffc54bd315616f2381b452484cc510351137cf6cfa23e622060f4416e8c7fe3e7db06db7a7bf94ffd2aa7880beee7b22bafb6e388804b61c

Download Submit
C:\Users\Admin\AppData\Roaming\C14E0\0FA4.14E

Filesize
600B

MD5
8b39e5da509687f473cf8abe267a3bc3

SHA1
8a44dcd13bc38dc3510aec63ee4d8a3170d09700

SHA256
3bf560fcee1cfab1187de33188a3fa8c61f8e6d0ad08e2a45680580922e4ae09

SHA512
3183f636f7b3a76e9e05c30e0fc54ecae1fbc5dabd9d2134ee1e50fab36ed233d26533f913039c14288759b57849ea4f01acaad649e5213c2dff6a1a602c21af

Download Submit
memory/1972-130-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2884-2-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2884-1-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2884-15-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2884-16-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2884-131-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2884-313-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2900-12-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2900-13-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads