cycbot | 67bc474fba12625f5fa89472f784d61d3fc233eab98227f6d1c54921cc18204e

General

Target

d05b7c90ed2ae56fa73cb421900ed293_JaffaCakes118.exe
Size

175KB
MD5

d05b7c90ed2ae56fa73cb421900ed293
SHA1

ba98ec9648bda5f3ed09ded67a1ef4c149c121da
SHA256

67bc474fba12625f5fa89472f784d61d3fc233eab98227f6d1c54921cc18204e
SHA512

53f5b8c34a0d7205ea91736708986a01ed2379c7c36ddc045e71b36e14407cb57a3e7dbdc5443d7a521db9fca7601872ed25522ab6cd648dda9610dcac854a99
SSDEEP

3072:XdF23o/kDbA3PMS6zknBXKr1lbQkpEFxwOMkHWKcrE+uTWTH4Cv:Ng3o8DblzknAr1lbd0w4Zj+r

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 5 IoCs

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

resource	yara_rule
behavioral2/memory/3660-10-0x0000000000400000-0x000000000046E000-memory.dmp	family_cycbot
behavioral2/memory/1412-15-0x0000000000400000-0x000000000046E000-memory.dmp	family_cycbot
behavioral2/memory/1412-81-0x0000000000400000-0x000000000046E000-memory.dmp	family_cycbot
behavioral2/memory/1748-85-0x0000000000400000-0x000000000046E000-memory.dmp	family_cycbot
behavioral2/memory/1412-198-0x0000000000400000-0x000000000046E000-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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\dwm.exe"	d05b7c90ed2ae56fa73cb421900ed293_JaffaCakes118.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1412-1-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/3660-8-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/3660-10-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/1412-15-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/1412-81-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/1748-84-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/1748-85-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/1412-198-0x0000000000400000-0x000000000046E000-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	d05b7c90ed2ae56fa73cb421900ed293_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d05b7c90ed2ae56fa73cb421900ed293_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d05b7c90ed2ae56fa73cb421900ed293_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1412 wrote to memory of 3660	1412	d05b7c90ed2ae56fa73cb421900ed293_JaffaCakes118.exe	83
PID 1412 wrote to memory of 3660	1412	d05b7c90ed2ae56fa73cb421900ed293_JaffaCakes118.exe	83
PID 1412 wrote to memory of 3660	1412	d05b7c90ed2ae56fa73cb421900ed293_JaffaCakes118.exe	83
PID 1412 wrote to memory of 1748	1412	d05b7c90ed2ae56fa73cb421900ed293_JaffaCakes118.exe	85
PID 1412 wrote to memory of 1748	1412	d05b7c90ed2ae56fa73cb421900ed293_JaffaCakes118.exe	85
PID 1412 wrote to memory of 1748	1412	d05b7c90ed2ae56fa73cb421900ed293_JaffaCakes118.exe	85

C:\Users\Admin\AppData\Local\Temp\d05b7c90ed2ae56fa73cb421900ed293_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d05b7c90ed2ae56fa73cb421900ed293_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1412
- C:\Users\Admin\AppData\Local\Temp\d05b7c90ed2ae56fa73cb421900ed293_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\d05b7c90ed2ae56fa73cb421900ed293_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3660
- C:\Users\Admin\AppData\Local\Temp\d05b7c90ed2ae56fa73cb421900ed293_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\d05b7c90ed2ae56fa73cb421900ed293_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1748

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\0B27.F01

Filesize
1KB

MD5
cf411653b511dd2da8be6b217905cdcc

SHA1
ef8bb3e95b4fdfbd753aeb1607dbe56c7befe6fe

SHA256
a08af7fb1f95a1b9fc11082590f58d6b22b49c34bdb819fdc2051459e96ca791

SHA512
8800ce8aa85a6f3a5ae63ad321dedbbfbcb5245b3a013a90d2b63fa4c88582f67b21420356276e8d598e4d12ec40737b428a1638bffdd069893fad81bf2bf3a4

Download Submit
C:\Users\Admin\AppData\Roaming\0B27.F01

Filesize
1KB

MD5
9aef402fbd18d2e0571138fd0359dbea

SHA1
d4f7ad8f983dd937f6a6793a0f2efe5db1e509db

SHA256
923e47285965c782c7798a23fed50a39b70d33614ca4507fc004044a7e619c95

SHA512
6472689a9478d5af7d8266c1b9267a2bed640e6aeb86af49a75f3c2f5f026a8e839cd7f635be06dea3d35747a22efe9cfadb9a87e3a1e8a36a2196b455eda2d5

Download Submit
C:\Users\Admin\AppData\Roaming\0B27.F01

Filesize
600B

MD5
bb951f1d00cab8bdcaeaeed330e3eed5

SHA1
1fbcc084fe96f3b1d4eb6f76db456ef08dc306dc

SHA256
8aae30aa4bf2f511d4cb6b90b206102ddba9bd1370e5fe0f385a3b90de4ac5c0

SHA512
a3f4e0f422ec41bb061fc80f555535ea8770c65da4f7e47ea22897d6c5b564f1c5426a24385e4d2d3442bd9993eee6631c07fa4c62f858935701ab8c5b7e4ea1

Download Submit
C:\Users\Admin\AppData\Roaming\0B27.F01

Filesize
996B

MD5
8821f6b5fa3583414ec1fcedc6a978a0

SHA1
d2e56747f8333e4ee335575333d8109a3f419ab4

SHA256
55f088bf951ecff0f499c1a4e69b05dcd9405e359263f8dcca97d362e6bfe2ae

SHA512
ed5c3e0f05fd2fd942a263bdeea80056818fdcae9cdb428f88629ce6e282a127b33262839e177b6151d36ee453f03b25cd7324d33636206894bea3aceb9c5b37

Download Submit
memory/1412-1-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1412-198-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1412-15-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1412-81-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1748-85-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1748-83-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1748-84-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/3660-10-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/3660-7-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/3660-8-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads