cycbot | e2f63e3bc3275b9dd289c5dbfedab4bb4b31e3f7019b513ea0866b5e26cab72d

General

Target

JaffaCakes118_23d053b9a5cb1da8f41cdb25381f6e56.exe
Size

186KB
MD5

23d053b9a5cb1da8f41cdb25381f6e56
SHA1

3f1f080be6b8c2d00ce7f9c419aac814d5c80337
SHA256

e2f63e3bc3275b9dd289c5dbfedab4bb4b31e3f7019b513ea0866b5e26cab72d
SHA512

6b873b6d1fadeabac2fb352ffac13fd2c1408ef2540b0cbd57b384b4b63f7e1483eaff87790a88ff25bff338c7fce1179fa43fa67cbf6206be5ef85dd86f73bb
SSDEEP

3072:2Sv7pQ9tpmTiG5d0PQ2JV2F5rg6MLSRzYLulgtO7p8r6w/SRtx6hmNRLq:2Sz+9tmFYPQ5r0MzjlgtOf626yRLq

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/1228-6-0x0000000000400000-0x0000000000443000-memory.dmp	family_cycbot
behavioral1/memory/2384-14-0x0000000000400000-0x0000000000443000-memory.dmp	family_cycbot
behavioral1/memory/2532-79-0x0000000000400000-0x0000000000443000-memory.dmp	family_cycbot
behavioral1/memory/2384-80-0x0000000000400000-0x0000000000443000-memory.dmp	family_cycbot
behavioral1/memory/2384-179-0x0000000000400000-0x0000000000443000-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_23d053b9a5cb1da8f41cdb25381f6e56.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2384-2-0x0000000000400000-0x0000000000443000-memory.dmp	upx
behavioral1/memory/1228-5-0x0000000000400000-0x0000000000443000-memory.dmp	upx
behavioral1/memory/1228-6-0x0000000000400000-0x0000000000443000-memory.dmp	upx
behavioral1/memory/2384-14-0x0000000000400000-0x0000000000443000-memory.dmp	upx
behavioral1/memory/2532-79-0x0000000000400000-0x0000000000443000-memory.dmp	upx
behavioral1/memory/2384-80-0x0000000000400000-0x0000000000443000-memory.dmp	upx
behavioral1/memory/2384-179-0x0000000000400000-0x0000000000443000-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_23d053b9a5cb1da8f41cdb25381f6e56.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_23d053b9a5cb1da8f41cdb25381f6e56.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_23d053b9a5cb1da8f41cdb25381f6e56.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2384 wrote to memory of 1228	2384	JaffaCakes118_23d053b9a5cb1da8f41cdb25381f6e56.exe	28
PID 2384 wrote to memory of 1228	2384	JaffaCakes118_23d053b9a5cb1da8f41cdb25381f6e56.exe	28
PID 2384 wrote to memory of 1228	2384	JaffaCakes118_23d053b9a5cb1da8f41cdb25381f6e56.exe	28
PID 2384 wrote to memory of 1228	2384	JaffaCakes118_23d053b9a5cb1da8f41cdb25381f6e56.exe	28
PID 2384 wrote to memory of 2532	2384	JaffaCakes118_23d053b9a5cb1da8f41cdb25381f6e56.exe	30
PID 2384 wrote to memory of 2532	2384	JaffaCakes118_23d053b9a5cb1da8f41cdb25381f6e56.exe	30
PID 2384 wrote to memory of 2532	2384	JaffaCakes118_23d053b9a5cb1da8f41cdb25381f6e56.exe	30
PID 2384 wrote to memory of 2532	2384	JaffaCakes118_23d053b9a5cb1da8f41cdb25381f6e56.exe	30

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_23d053b9a5cb1da8f41cdb25381f6e56.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_23d053b9a5cb1da8f41cdb25381f6e56.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2384
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_23d053b9a5cb1da8f41cdb25381f6e56.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_23d053b9a5cb1da8f41cdb25381f6e56.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1228
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_23d053b9a5cb1da8f41cdb25381f6e56.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_23d053b9a5cb1da8f41cdb25381f6e56.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2532

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\CBBF.4D6

Filesize
1KB

MD5
577322627c0ed3ba5c1246d62aad4368

SHA1
e80604a14b83ad6750a229095109258df6d64c60

SHA256
9c9b000d1db67ddc01c7f17d7154a05e4bb6a0aa4302458977e3afed4940e838

SHA512
a35312e3138166c8832a7e8cda37a8103a498ccdfbcc0eed0acf4e9e756e00e82780165908059adcad31b7035138eff89b00d8654ecd11279e7bb2321a5fa4ad

Download Submit
C:\Users\Admin\AppData\Roaming\CBBF.4D6

Filesize
600B

MD5
ad00bbec030f3600bd8afc8fbaa75d73

SHA1
29dd6a98824c0c0ff44e13ece5e452104ce444c8

SHA256
eae46e27a190b4c5e4993d2b45b544bf6945c1e4cd90f395f2fec5d0a7d9744d

SHA512
62b473783d1da6700ea3a2b745db51bf1997117b59c7c17384351e54956309b5ce05f336401ceceb736bd659bdbda4485b5132610b43001e754ad2ede4aea216

Download Submit
C:\Users\Admin\AppData\Roaming\CBBF.4D6

Filesize
996B

MD5
49a3b9830312160eb236b83aafacbef0

SHA1
19cffe251f3e93161c3dc07222d026ff4c08cea6

SHA256
a30c3e48554cabc8cb8171a688d4ac5e13956611c71f6c99773597a061d3b395

SHA512
5263b7b0e3d397975ae0bf1b395c7f75dc8026528d532960593cc0cdfa90287a995071366774baab1cd366ef2b59e767a1e546b55e48f8d56b2bdd12dec93628

Download Submit
memory/1228-5-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/1228-6-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/2384-1-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/2384-2-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/2384-14-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/2384-80-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/2384-179-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/2532-79-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads