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 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
behavioral2/memory/540-15-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/4468-16-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/4468-17-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral2/memory/3692-128-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/4468-129-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/4468-299-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/4468-301-0x0000000000400000-0x0000000000491000-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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\95A1D\\3CE00.exe"	dd861d2584a7f9ace519217dac5b6491_JaffaCakes118.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4468-2-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/540-13-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/540-15-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/4468-16-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/4468-17-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral2/memory/3692-126-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/3692-128-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/4468-129-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/4468-299-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/4468-301-0x0000000000400000-0x0000000000491000-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 6 IoCs

description	pid	Process	procid_target
PID 4468 wrote to memory of 540	4468	dd861d2584a7f9ace519217dac5b6491_JaffaCakes118.exe	82
PID 4468 wrote to memory of 540	4468	dd861d2584a7f9ace519217dac5b6491_JaffaCakes118.exe	82
PID 4468 wrote to memory of 540	4468	dd861d2584a7f9ace519217dac5b6491_JaffaCakes118.exe	82
PID 4468 wrote to memory of 3692	4468	dd861d2584a7f9ace519217dac5b6491_JaffaCakes118.exe	90
PID 4468 wrote to memory of 3692	4468	dd861d2584a7f9ace519217dac5b6491_JaffaCakes118.exe	90
PID 4468 wrote to memory of 3692	4468	dd861d2584a7f9ace519217dac5b6491_JaffaCakes118.exe	90

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:4468
- C:\Users\Admin\AppData\Local\Temp\dd861d2584a7f9ace519217dac5b6491_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\dd861d2584a7f9ace519217dac5b6491_JaffaCakes118.exe startC:\Program Files (x86)\LP\00B9\B2F.exe%C:\Program Files (x86)\LP\00B9
  2⤵
  - System Location Discovery: System Language Discovery
  PID:540
- C:\Users\Admin\AppData\Local\Temp\dd861d2584a7f9ace519217dac5b6491_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\dd861d2584a7f9ace519217dac5b6491_JaffaCakes118.exe startC:\Program Files (x86)\1DC48\lvvm.exe%C:\Program Files (x86)\1DC48
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3692

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

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\95A1D\DC48.5A1

Filesize
996B

MD5
c53df06811cb9a8a5226d5da88400a15

SHA1
87fb10f12348ed8913aa6deb95023ad757690f52

SHA256
8a9d43f7474b7069b2ed5b1aa44f16fc63c61537d5a0f66182b911ba59aed50a

SHA512
e66720900943793cafedc12c574b7effeba4d0ef49b4cba4952a21cdc445f09e115fd3e8ade6219845e017652d6bc4ca94e4be8ce4d808d810eea532266eda92

Download Submit
C:\Users\Admin\AppData\Roaming\95A1D\DC48.5A1

Filesize
1KB

MD5
138f3ed4239500c146d1232e7a584e21

SHA1
2c9c56c022118c471fe6ee8870c4d9fbbe7c7d7e

SHA256
b385b15f52a74364c451e7a893e5a49f4f16c3e3d54cefaeca6cdac2f6682152

SHA512
3a66a9411593e133462d7a0d6f874411ccf54310fcdc8b62d531e1135c62a7471e9db89158e2f4a1d48cdc08f563bf8a9b1658f95d8b7fb23c295661802e1b14

Download Submit
C:\Users\Admin\AppData\Roaming\95A1D\DC48.5A1

Filesize
600B

MD5
124e2fa856dc9a3ada92fca1e495464b

SHA1
0ee247b3d483c3cff168f1e2e0adccba0930547d

SHA256
0c2f44796c00bdec48fda5cdaae29006700bd6bce444a64f2ccd3be8b46a40ea

SHA512
a75afa4807c0192593b81cecde208535965f6505897ebc59eeb276a8e02b0c521c2ced7d45bacf6a53b7ea1f306f9eec73bc210fcf979121c12bd1adc88510cf

Download Submit
memory/540-13-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/540-12-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/540-15-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3692-128-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3692-126-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4468-17-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/4468-1-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/4468-129-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4468-16-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4468-2-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4468-299-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/4468-301-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads