cycbot | 9dfc8c50e3f1e13494fe702172803b373d7c9a1433ef0e4c3ed58402124a73e4

General

Target

JaffaCakes118_e28a5b69ca6f07ee13cc751d99b3942e.exe
Size

157KB
MD5

e28a5b69ca6f07ee13cc751d99b3942e
SHA1

f38e21f245b3f5e2f25c77a6fd2624f1c6e844d4
SHA256

9dfc8c50e3f1e13494fe702172803b373d7c9a1433ef0e4c3ed58402124a73e4
SHA512

d806237f2681af6ed6c4dcce1827646c56b2f67dd7337dde0abb4bc1805904dbb52ae4c2251eb89a4906fd7a5beee8090f33550340902fcff733b76b78c9407e
SSDEEP

3072:wSNApYXHYzNrVwv8W8X8bolXfxAjiyg6PlSi4jHa1Ev:wS6Y3YzNrVw0W8X8b4pAjiyvwVjUEv

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++.

resource	yara_rule
behavioral1/memory/2664-7-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2076-15-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2844-96-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2076-173-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2076-213-0x0000000000400000-0x0000000000442000-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_e28a5b69ca6f07ee13cc751d99b3942e.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2076-2-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2664-7-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2664-6-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2664-5-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2076-15-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2844-94-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2844-96-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2076-173-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2076-213-0x0000000000400000-0x0000000000442000-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_e28a5b69ca6f07ee13cc751d99b3942e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_e28a5b69ca6f07ee13cc751d99b3942e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_e28a5b69ca6f07ee13cc751d99b3942e.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2076 wrote to memory of 2664	2076	JaffaCakes118_e28a5b69ca6f07ee13cc751d99b3942e.exe	28
PID 2076 wrote to memory of 2664	2076	JaffaCakes118_e28a5b69ca6f07ee13cc751d99b3942e.exe	28
PID 2076 wrote to memory of 2664	2076	JaffaCakes118_e28a5b69ca6f07ee13cc751d99b3942e.exe	28
PID 2076 wrote to memory of 2664	2076	JaffaCakes118_e28a5b69ca6f07ee13cc751d99b3942e.exe	28
PID 2076 wrote to memory of 2844	2076	JaffaCakes118_e28a5b69ca6f07ee13cc751d99b3942e.exe	30
PID 2076 wrote to memory of 2844	2076	JaffaCakes118_e28a5b69ca6f07ee13cc751d99b3942e.exe	30
PID 2076 wrote to memory of 2844	2076	JaffaCakes118_e28a5b69ca6f07ee13cc751d99b3942e.exe	30
PID 2076 wrote to memory of 2844	2076	JaffaCakes118_e28a5b69ca6f07ee13cc751d99b3942e.exe	30

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e28a5b69ca6f07ee13cc751d99b3942e.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e28a5b69ca6f07ee13cc751d99b3942e.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2076
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e28a5b69ca6f07ee13cc751d99b3942e.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e28a5b69ca6f07ee13cc751d99b3942e.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2664
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e28a5b69ca6f07ee13cc751d99b3942e.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e28a5b69ca6f07ee13cc751d99b3942e.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2844

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

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Downloads

C:\Users\Admin\AppData\Roaming\120F.C1F

Filesize
600B

MD5
27263554485564fc81bdb7491aca2005

SHA1
a7551864d57b792f7a0261317bab442281cf610b

SHA256
3e76839db5e0b2cfd8f5089d346c80dd28ee21bfd67f04b4d60f82a482339992

SHA512
9158c38c3be7dc5dd9d7a4c2acd35483c7b88847a63bc3b1bb719241acebb1e2a294049fca8d4435a5d7b93182d09977e2327f1777f40cdb9435c153fb5d2685

Download Submit
C:\Users\Admin\AppData\Roaming\120F.C1F

Filesize
1KB

MD5
205760a015aa178b96152e138a597752

SHA1
c4e01b2ef98e384c538211bed82c510c7590c679

SHA256
ffec0096991b160d2fe565b37259c86c500730d9e6406ce616653c1a189906e2

SHA512
1b1738fde4469b68b88e308f9a07119e3b9a0923dd90bb3b18e26f3e6516def97cc8dd63fbd2c6ba12162a17f863d318853892ebb867946fba59c6bf6711429b

Download Submit
C:\Users\Admin\AppData\Roaming\120F.C1F

Filesize
996B

MD5
a2187dee6c643087ff92c432048c1f50

SHA1
0d57527aea28bb3a599450432f3ee7eb521746b2

SHA256
14f54fbdbce87aa6d11fc336796eaeb1fc3bfe10453ebb8bd14d0aeca11f4a7d

SHA512
9897acf8c2878c9ef1709b192f21e8e222a69e0ae19efba8923196fc5431fcc43ff80a8432a2a636ea2ce6d7f9c0ad0c48db539e98d2b2bfe2577957b742b4b8

Download Submit
memory/2076-2-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2076-213-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2076-1-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2076-173-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2076-15-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2664-6-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2664-5-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2664-7-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2844-96-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2844-94-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads