cycbot | 1f49328e7a617685196b1495c6e650f5c86f26e66cf8f896ce45ddf4da5a6ff0

General

Target

JaffaCakes118_7266056e25fe8b7dbb52e5fbb0c22f67.exe
Size

169KB
MD5

7266056e25fe8b7dbb52e5fbb0c22f67
SHA1

7614c024f3476c1dccf37516f632fcc63653a1df
SHA256

1f49328e7a617685196b1495c6e650f5c86f26e66cf8f896ce45ddf4da5a6ff0
SHA512

554734d9ddef4594d4d1a7407d3a34484b91f5a0faa47e3f893eb7e3b0031434caf8f46c5a73bcb487608da8e9537a2560c15cc995f1d6b745a0090ecf21643b
SSDEEP

3072:fpPSxw5COty1PDRwNQsTFpOdy4MlFZjRWLlq3OE1/Mrr8NLc:fp0htTgQogs4MpRWYOE12r8

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 6 IoCs

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

resource	yara_rule
behavioral2/memory/3512-10-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/32-11-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/32-12-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral2/memory/1788-84-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/32-85-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral2/memory/32-181-0x0000000000400000-0x0000000000491000-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\\DA55C\\447F0.exe"	JaffaCakes118_7266056e25fe8b7dbb52e5fbb0c22f67.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/32-2-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/3512-9-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/3512-10-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/32-11-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/32-12-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral2/memory/1788-83-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/1788-84-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/32-85-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral2/memory/32-181-0x0000000000400000-0x0000000000491000-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	JaffaCakes118_7266056e25fe8b7dbb52e5fbb0c22f67.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7266056e25fe8b7dbb52e5fbb0c22f67.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7266056e25fe8b7dbb52e5fbb0c22f67.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 32 wrote to memory of 3512	32	JaffaCakes118_7266056e25fe8b7dbb52e5fbb0c22f67.exe	82
PID 32 wrote to memory of 3512	32	JaffaCakes118_7266056e25fe8b7dbb52e5fbb0c22f67.exe	82
PID 32 wrote to memory of 3512	32	JaffaCakes118_7266056e25fe8b7dbb52e5fbb0c22f67.exe	82
PID 32 wrote to memory of 1788	32	JaffaCakes118_7266056e25fe8b7dbb52e5fbb0c22f67.exe	87
PID 32 wrote to memory of 1788	32	JaffaCakes118_7266056e25fe8b7dbb52e5fbb0c22f67.exe	87
PID 32 wrote to memory of 1788	32	JaffaCakes118_7266056e25fe8b7dbb52e5fbb0c22f67.exe	87

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7266056e25fe8b7dbb52e5fbb0c22f67.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7266056e25fe8b7dbb52e5fbb0c22f67.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:32
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7266056e25fe8b7dbb52e5fbb0c22f67.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7266056e25fe8b7dbb52e5fbb0c22f67.exe startC:\Program Files (x86)\LP\F0BD\5FB.exe%C:\Program Files (x86)\LP\F0BD
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3512
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7266056e25fe8b7dbb52e5fbb0c22f67.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7266056e25fe8b7dbb52e5fbb0c22f67.exe startC:\Program Files (x86)\5C540\lvvm.exe%C:\Program Files (x86)\5C540
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1788

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\DA55C\C540.A55

Filesize
300B

MD5
a8777dc32f7aa8feed0ef1f2719d76ea

SHA1
7a68531eaa974bab26a8e42d13716e91cb57ad1a

SHA256
3ec83993ead526c628687705bc0da02b8b80609ece91036bbc13f7c542c33c3b

SHA512
a2b2779490b993a967744d6c2e507e6e05e74607a95bfb06eeaa157738685a2d60ce287bc719df9726cacb474b31f2e392a04fc9fa91443ea965f3edcf87ac26

Download Submit
C:\Users\Admin\AppData\Roaming\DA55C\C540.A55

Filesize
1KB

MD5
88fe022fe1267620f1444c61875f8818

SHA1
20daf9bfea90fa7b3b4673ab029f66716cda6626

SHA256
bebd127f065d301210b377ca85eaaee4336457680e49033451af1055b446e275

SHA512
180d5ed73fb1616f5d1bddeb265076fcecf6e68e2d539ce1e414eba6a0d8d7f8b99a34628a13e97fa442ce63e3e8b9eddc3a8bbee34f3ccb08b0a10b11e3103b

Download Submit
C:\Users\Admin\AppData\Roaming\DA55C\C540.A55

Filesize
696B

MD5
62534072d848255a95ffca911299fea0

SHA1
6ee3ff05948163e88b55083cf5ddb1b30436073b

SHA256
10361a49c8c9a32dd9c785218df11cf787348242cf49d6253a08153acaa9275a

SHA512
babb0d57af47c75850121f78e2b8c7f81cf0a1314653641b30126c96fa6af27dcfd7d25daefb29e241b422f908dc110686eb876194c714d59317a702d5557cc8

Download Submit
memory/32-1-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/32-2-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/32-181-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/32-11-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/32-12-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/32-85-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/1788-84-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/1788-83-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3512-10-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3512-9-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/3512-8-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads