cycbot | 3c6e64530090d7512859acd5dbee517cecbe74875c8d485cb73e514fb172123c

General

Target

dd861d2584a7f9ace519217dac5b6491_JaffaCakes118.exe
Size

171KB
MD5

dd861d2584a7f9ace519217dac5b6491
SHA1

1989054faeb8eb020b28caf2f806e43ca2562243
SHA256

3c6e64530090d7512859acd5dbee517cecbe74875c8d485cb73e514fb172123c
SHA512

94595527ee1b6f383e5f54e1d0b58102b0c3776dfbb05aa138c6b397853cc6ac5b17ce6c84987b9ed979f5e901dd228d2a21da6c5fcd1400854b0dc07ffd1530
SSDEEP

3072:uMXe2Klg0YHb6SiH7PUYpMaTzCPdcGq9zT6DsORMQ7c2Anx:ygt6SuPUn8C1vq9n6Jl7c2G

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 7 IoCs

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

resource	yara_rule
behavioral1/memory/2516-15-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral1/memory/388-17-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral1/memory/388-16-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral1/memory/496-140-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral1/memory/496-139-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral1/memory/388-141-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral1/memory/388-291-0x0000000000400000-0x0000000000491000-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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\D8806\\723C3.exe"	dd861d2584a7f9ace519217dac5b6491_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 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/388-3-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/2516-13-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/2516-15-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/388-17-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral1/memory/388-16-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/496-140-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/496-139-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/388-141-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/388-291-0x0000000000400000-0x0000000000491000-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	dd861d2584a7f9ace519217dac5b6491_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dd861d2584a7f9ace519217dac5b6491_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dd861d2584a7f9ace519217dac5b6491_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 388 wrote to memory of 2516	388	dd861d2584a7f9ace519217dac5b6491_JaffaCakes118.exe	31
PID 388 wrote to memory of 2516	388	dd861d2584a7f9ace519217dac5b6491_JaffaCakes118.exe	31
PID 388 wrote to memory of 2516	388	dd861d2584a7f9ace519217dac5b6491_JaffaCakes118.exe	31
PID 388 wrote to memory of 2516	388	dd861d2584a7f9ace519217dac5b6491_JaffaCakes118.exe	31
PID 388 wrote to memory of 496	388	dd861d2584a7f9ace519217dac5b6491_JaffaCakes118.exe	33
PID 388 wrote to memory of 496	388	dd861d2584a7f9ace519217dac5b6491_JaffaCakes118.exe	33
PID 388 wrote to memory of 496	388	dd861d2584a7f9ace519217dac5b6491_JaffaCakes118.exe	33
PID 388 wrote to memory of 496	388	dd861d2584a7f9ace519217dac5b6491_JaffaCakes118.exe	33

C:\Users\Admin\AppData\Local\Temp\dd861d2584a7f9ace519217dac5b6491_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\dd861d2584a7f9ace519217dac5b6491_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:388
- C:\Users\Admin\AppData\Local\Temp\dd861d2584a7f9ace519217dac5b6491_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\dd861d2584a7f9ace519217dac5b6491_JaffaCakes118.exe startC:\Program Files (x86)\LP\C32D\B03.exe%C:\Program Files (x86)\LP\C32D
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2516
- C:\Users\Admin\AppData\Local\Temp\dd861d2584a7f9ace519217dac5b6491_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\dd861d2584a7f9ace519217dac5b6491_JaffaCakes118.exe startC:\Program Files (x86)\06A56\lvvm.exe%C:\Program Files (x86)\06A56
  2⤵
  - System Location Discovery: System Language Discovery
  PID:496

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\D8806\6A56.880

Filesize
996B

MD5
62fde4af321e442e7725bad161a621bd

SHA1
80bb494050ed833ba15bb56bcd6607876f23f95e

SHA256
f6b853687fd18a48ba22a1b9b762b797720fab38d697436931f6c97e5d3c1541

SHA512
dd6210b95a12016dbe7757b899a69c921156dd6832b78fb4b4eb5a38d8ba7401c56c39cda674a353578941dba92ade74ec3a6be2a7e29efad94db1ff4ea15e40

Download Submit
C:\Users\Admin\AppData\Roaming\D8806\6A56.880

Filesize
1KB

MD5
0d861c5b55e61baff177b9a4fe3dc762

SHA1
5ef11eef7535a2de50d50864af8a9b3b6de503be

SHA256
2529144e6b5f0fa6bf1c5dfec58474bcda8507ded6b6942e52a87c3a4e881c7a

SHA512
c5e9e8ad6e04023b60052df6611d368d4491c17f6e4e3324dbaf42a1641bfa9e884933f77aff551dbb7cb02a46b37727ef3731a329812b608323a7d73ed11f52

Download Submit
C:\Users\Admin\AppData\Roaming\D8806\6A56.880

Filesize
600B

MD5
328c09ffe9417fb0c7660a01aae60b5b

SHA1
b7dd699310d3df6f746cdd0f4986c2a48dcc9760

SHA256
8ff4dee28dac108889c6d6d8dd72f76f6d7caba13557f1b03c72c593f0f00c2a

SHA512
4817169297235ecd94e779f62dde362b164d4afabe1e7a51f1a138856968e29ef8ae1d6b2b8e8406327076bf156c40178bc8dde27326a47e788588863846c3bc

Download Submit
memory/388-1-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/388-3-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/388-291-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/388-17-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/388-16-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/388-141-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/496-139-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/496-140-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2516-15-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2516-13-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2516-12-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads