cycbot | c0ae6270f99056daf0f98ae5a411f8a70b008c81a027903003d3fac37d16f56b

General

Target

f1fd577f429914f70f4038ee16d07b8a_JaffaCakes118.exe
Size

171KB
MD5

f1fd577f429914f70f4038ee16d07b8a
SHA1

2831f0e60bd34e6afc2ed46b57134b84ca0077ea
SHA256

c0ae6270f99056daf0f98ae5a411f8a70b008c81a027903003d3fac37d16f56b
SHA512

7639a226b57d9ac94543586bc5e5d1a288acdded7eb089894b6f566c6ffd0bf9d860c366eacae5f8e4a42e3f4949d4aead0c572cc5cccf1f01065e905923af2b
SSDEEP

3072:sTGJH2PdRnIOKQHrlcMl7lSF00/pmbX559MgUhfP9/YQYh/bfkkP/:FWY4HrJ7lr0/pmbX5fIP9/Yrh/bfk

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/4704-14-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot
behavioral2/memory/3252-15-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot
behavioral2/memory/3252-83-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot
behavioral2/memory/2284-86-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot
behavioral2/memory/3252-195-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot
behavioral2/memory/3252-200-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot

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"	f1fd577f429914f70f4038ee16d07b8a_JaffaCakes118.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3252-2-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral2/memory/4704-12-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral2/memory/4704-13-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral2/memory/4704-14-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral2/memory/3252-15-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral2/memory/3252-83-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral2/memory/2284-86-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral2/memory/3252-195-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral2/memory/3252-200-0x0000000000400000-0x0000000000444000-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	f1fd577f429914f70f4038ee16d07b8a_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f1fd577f429914f70f4038ee16d07b8a_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f1fd577f429914f70f4038ee16d07b8a_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3252 wrote to memory of 4704	3252	f1fd577f429914f70f4038ee16d07b8a_JaffaCakes118.exe	83
PID 3252 wrote to memory of 4704	3252	f1fd577f429914f70f4038ee16d07b8a_JaffaCakes118.exe	83
PID 3252 wrote to memory of 4704	3252	f1fd577f429914f70f4038ee16d07b8a_JaffaCakes118.exe	83
PID 3252 wrote to memory of 2284	3252	f1fd577f429914f70f4038ee16d07b8a_JaffaCakes118.exe	85
PID 3252 wrote to memory of 2284	3252	f1fd577f429914f70f4038ee16d07b8a_JaffaCakes118.exe	85
PID 3252 wrote to memory of 2284	3252	f1fd577f429914f70f4038ee16d07b8a_JaffaCakes118.exe	85

C:\Users\Admin\AppData\Local\Temp\f1fd577f429914f70f4038ee16d07b8a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f1fd577f429914f70f4038ee16d07b8a_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3252
- C:\Users\Admin\AppData\Local\Temp\f1fd577f429914f70f4038ee16d07b8a_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f1fd577f429914f70f4038ee16d07b8a_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4704
- C:\Users\Admin\AppData\Local\Temp\f1fd577f429914f70f4038ee16d07b8a_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f1fd577f429914f70f4038ee16d07b8a_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2284

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

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\5662.E40

Filesize
1KB

MD5
f946a143a6627e3e4bd357efe25436ac

SHA1
4396244dc59e4c81543321f30823a240226ac946

SHA256
da748e38fa6a6a636d24fb64044299a80e49e07b28a600bd81bcb34e3a5d3bc4

SHA512
2f586a33e08b82a188b9757c1ebf3f3c9e8c3e7daaa10a2d69c312ebc6fc1d5998548814b38c2b04248f1389195a013bae27cb4483c88f3e99e8b8130158c60c

Download Submit
C:\Users\Admin\AppData\Roaming\5662.E40

Filesize
600B

MD5
62e4a2c9a1847808cd7672b00506be69

SHA1
6885c8d2b58e56382cb6ac044b6b131af9b8480a

SHA256
b442baa78a072fd8626c88c7367d374d30b19226c0d10fe9f40acec034024efd

SHA512
d728f281a65f870a990046f8390db411aeccd06f800bc133abb02e57b49268562188c178512a4fd6b6b326a726cd94752226ea3329c5eddb9bbb95316a57b942

Download Submit
C:\Users\Admin\AppData\Roaming\5662.E40

Filesize
996B

MD5
ee66e1d1da7b8377e298fc76ddf6cb89

SHA1
2610b6f1346afabf668911b508a15bef1c93478e

SHA256
e0af191fa0b4f710a61a6e2b46940f0ba11d278d07ff69bb92f096feb3cb6c48

SHA512
fc9cbaeec689aacad3b95759f05d1678a05f964fd6931e4cf5a06d6c5956049145531a9d6c0123f4f167568dae71b048cbf97fc9f5ef71f95dd75cbdbbb5db8f

Download Submit
memory/2284-86-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2284-85-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/3252-15-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/3252-83-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/3252-1-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/3252-2-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/3252-195-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/3252-200-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4704-14-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4704-13-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4704-12-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads