cycbot | 0d6bfde6fd87862c17ec21189950d9bf07b51793c704023f717129ec65b367e6

General

Target

JaffaCakes118_5787714b5e0d7a8637009e5dd6a91a58.exe
Size

187KB
MD5

5787714b5e0d7a8637009e5dd6a91a58
SHA1

549626c9602412bcd27712c44531ced2ed443200
SHA256

0d6bfde6fd87862c17ec21189950d9bf07b51793c704023f717129ec65b367e6
SHA512

0445fdfcc8a5c4963c7fd63f4b145bb55cdcc74f9972340b548b9b4cda51807724d9898e3846a1d300ef59be776dab71c14466e24b8a6dd6c770f5c66e7c03b4
SSDEEP

3072:is04FXKn40nNqekDdjvb9Eo7JjMe6i6V68fh0bSaJQtBZ2FoAEzuFKjVf1SF1KxB:isfFSqekDdVEo7Jj76lfOQtDYEq98x/5

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 6 IoCs

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

resource	yara_rule
behavioral1/memory/2916-6-0x0000000000400000-0x0000000000443000-memory.dmp	family_cycbot
behavioral1/memory/2376-15-0x0000000000400000-0x0000000000443000-memory.dmp	family_cycbot
behavioral1/memory/3024-74-0x0000000000400000-0x0000000000443000-memory.dmp	family_cycbot
behavioral1/memory/2376-75-0x0000000000400000-0x0000000000443000-memory.dmp	family_cycbot
behavioral1/memory/2376-174-0x0000000000400000-0x0000000000443000-memory.dmp	family_cycbot
behavioral1/memory/2376-179-0x0000000000400000-0x0000000000443000-memory.dmp	family_cycbot

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

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"	JaffaCakes118_5787714b5e0d7a8637009e5dd6a91a58.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2376-2-0x0000000000400000-0x0000000000443000-memory.dmp	upx
behavioral1/memory/2916-5-0x0000000000400000-0x0000000000443000-memory.dmp	upx
behavioral1/memory/2916-6-0x0000000000400000-0x0000000000443000-memory.dmp	upx
behavioral1/memory/2376-15-0x0000000000400000-0x0000000000443000-memory.dmp	upx
behavioral1/memory/3024-74-0x0000000000400000-0x0000000000443000-memory.dmp	upx
behavioral1/memory/2376-75-0x0000000000400000-0x0000000000443000-memory.dmp	upx
behavioral1/memory/2376-174-0x0000000000400000-0x0000000000443000-memory.dmp	upx
behavioral1/memory/2376-179-0x0000000000400000-0x0000000000443000-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_5787714b5e0d7a8637009e5dd6a91a58.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_5787714b5e0d7a8637009e5dd6a91a58.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_5787714b5e0d7a8637009e5dd6a91a58.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2376 wrote to memory of 2916	2376	JaffaCakes118_5787714b5e0d7a8637009e5dd6a91a58.exe	30
PID 2376 wrote to memory of 2916	2376	JaffaCakes118_5787714b5e0d7a8637009e5dd6a91a58.exe	30
PID 2376 wrote to memory of 2916	2376	JaffaCakes118_5787714b5e0d7a8637009e5dd6a91a58.exe	30
PID 2376 wrote to memory of 2916	2376	JaffaCakes118_5787714b5e0d7a8637009e5dd6a91a58.exe	30
PID 2376 wrote to memory of 3024	2376	JaffaCakes118_5787714b5e0d7a8637009e5dd6a91a58.exe	32
PID 2376 wrote to memory of 3024	2376	JaffaCakes118_5787714b5e0d7a8637009e5dd6a91a58.exe	32
PID 2376 wrote to memory of 3024	2376	JaffaCakes118_5787714b5e0d7a8637009e5dd6a91a58.exe	32
PID 2376 wrote to memory of 3024	2376	JaffaCakes118_5787714b5e0d7a8637009e5dd6a91a58.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5787714b5e0d7a8637009e5dd6a91a58.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5787714b5e0d7a8637009e5dd6a91a58.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2376
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5787714b5e0d7a8637009e5dd6a91a58.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5787714b5e0d7a8637009e5dd6a91a58.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2916
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5787714b5e0d7a8637009e5dd6a91a58.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5787714b5e0d7a8637009e5dd6a91a58.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3024

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

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

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Downloads

C:\Users\Admin\AppData\Roaming\F399.42A

Filesize
1KB

MD5
a48817801b6815814ffe0f5b614d881b

SHA1
4cd3f805d19f89ca1a602c350f61a8896609d3f9

SHA256
ca01657d3d6ffd06588b8b640db273c7d9f3f23904649c4b20e08b3c22563c35

SHA512
d07b16e48570c846fc2468cdcfd34523dc6ad98389f7f13f17b4494b9607c7528d999575d9a615863b3b285f57d9279c43712be596461e7949f2c187a11e4024

Download Submit
C:\Users\Admin\AppData\Roaming\F399.42A

Filesize
600B

MD5
4a57e37613aec8c047cf91beedd7691f

SHA1
087c654fc2e66c4825970372dea5bea55927544e

SHA256
9f3046e64948ea702a2fd0ad7ce94506f467c3f828fe7c33d241589ed81e503c

SHA512
ac1f66da02da92bb20f1dbfb3a758f950ad86c0180ee2c828111093f6b3947ad047ef0d885e5d0586fbe5fc651f533f87e0150cc3bbdd4ee3712401a4f8dd66c

Download Submit
C:\Users\Admin\AppData\Roaming\F399.42A

Filesize
996B

MD5
f95d33aeddf02f81def492bb4ec16432

SHA1
99e88129786733bcd005fe3663f50dd66d141c11

SHA256
0d84fc923d4a130e17eb274a6d065716003654fd22102bbbe41240f6b051f90a

SHA512
b5161071041f6588ffd096f4a32c44ef44ffb16ab9dcc3f11c47d790eefc28df4e5eaaf8ad64cb07790689b6adb55e48f38403e332810e6450d277ac4cb643fc

Download Submit
memory/2376-1-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/2376-2-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/2376-15-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/2376-75-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/2376-174-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/2376-179-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/2916-5-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/2916-6-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/3024-74-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads