cycbot | e7f6682960beb570c02bf70aed795a4b6bdc88017c4498b5a0616b295fe9c81e

General

Target

JaffaCakes118_2a9857d443b225a1e2f408a4a7eeb3b7.exe
Size

182KB
MD5

2a9857d443b225a1e2f408a4a7eeb3b7
SHA1

4c64b1ace28f8360087eee016cafe4d9589d06bb
SHA256

e7f6682960beb570c02bf70aed795a4b6bdc88017c4498b5a0616b295fe9c81e
SHA512

aa497017f514d67a9bb0604974746b6e0387c24ac0ed3246bc0f93b4e1cc61ba130ec936296000df7d19425615204c87263625c804c2c1bbb7b71f32fcd2e2c1
SSDEEP

3072:H2Nu+u6t71AZkPRS9HNv0j7d5bmiolHJybr7vbXr87sLL3dwr6h3FDnHj9l8V5J:H2VWcRckOPlHJYr4sLyrC1D5eVfY0JF

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 5 IoCs

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

resource	yara_rule
behavioral1/memory/2696-5-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/1720-13-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2896-82-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/1720-83-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/1720-182-0x0000000000400000-0x0000000000442000-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_2a9857d443b225a1e2f408a4a7eeb3b7.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2696-4-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2696-5-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1720-13-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2896-82-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1720-83-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1720-182-0x0000000000400000-0x0000000000442000-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_2a9857d443b225a1e2f408a4a7eeb3b7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2a9857d443b225a1e2f408a4a7eeb3b7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2a9857d443b225a1e2f408a4a7eeb3b7.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1720 wrote to memory of 2696	1720	JaffaCakes118_2a9857d443b225a1e2f408a4a7eeb3b7.exe	30
PID 1720 wrote to memory of 2696	1720	JaffaCakes118_2a9857d443b225a1e2f408a4a7eeb3b7.exe	30
PID 1720 wrote to memory of 2696	1720	JaffaCakes118_2a9857d443b225a1e2f408a4a7eeb3b7.exe	30
PID 1720 wrote to memory of 2696	1720	JaffaCakes118_2a9857d443b225a1e2f408a4a7eeb3b7.exe	30
PID 1720 wrote to memory of 2896	1720	JaffaCakes118_2a9857d443b225a1e2f408a4a7eeb3b7.exe	33
PID 1720 wrote to memory of 2896	1720	JaffaCakes118_2a9857d443b225a1e2f408a4a7eeb3b7.exe	33
PID 1720 wrote to memory of 2896	1720	JaffaCakes118_2a9857d443b225a1e2f408a4a7eeb3b7.exe	33
PID 1720 wrote to memory of 2896	1720	JaffaCakes118_2a9857d443b225a1e2f408a4a7eeb3b7.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2a9857d443b225a1e2f408a4a7eeb3b7.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2a9857d443b225a1e2f408a4a7eeb3b7.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1720
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2a9857d443b225a1e2f408a4a7eeb3b7.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2a9857d443b225a1e2f408a4a7eeb3b7.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2696
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2a9857d443b225a1e2f408a4a7eeb3b7.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2a9857d443b225a1e2f408a4a7eeb3b7.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2896

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\4389.78F

Filesize
1KB

MD5
7058196c673ffbf2d0ffc61785a5c7aa

SHA1
a6cba42ccb00daf562d508ddd73cade0e9a906e9

SHA256
3d83e4fa35a5c23cc45f98374f284b55491f7a7cb6cc9ec87fec3e9df9df5eee

SHA512
6fc42dfa0adad138e2711144711c2e5bdefeb499982f6d1223a1ff20a4b474147e13aab30d09550b93691d24286e742d6c3ec9bd76815ee53bb7a6218deed678

Download Submit
C:\Users\Admin\AppData\Roaming\4389.78F

Filesize
600B

MD5
c7930f496757df7c4e0ac0e77931024e

SHA1
19c804aea16d1913cf8e43d8154acb263c33f165

SHA256
a2690c40e642cc0e91d24b477eb1c27eabcc046b078d1eecdbe12994e560a56a

SHA512
4ef3115e773a75b82df4c8c475c9f4118e1361402ef29463b6762ab74754efaa4738d8d5b5d41d3a1236e6095067983516dec3b6cf3103c31d59a658f1ea1caf

Download Submit
C:\Users\Admin\AppData\Roaming\4389.78F

Filesize
996B

MD5
df71700b72d415cba518cdfc5984e33c

SHA1
980e50f2f98e2ed966dd9747afc4ef6a9f9eab30

SHA256
13850fc3b1190e096a741ee8b7d85c47c5f7870127a4f872a3e2bf628e2be73e

SHA512
0b00f4c58e7e2f2cba2cb1f4773ef0c9608a374f2074475e692c3c90a49addf74c3c0c0d957a9086fccc3e85399888a01dbeb9bad6cda563a8a37d36d6be4370

Download Submit
memory/1720-1-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1720-13-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1720-83-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1720-182-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2696-4-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2696-5-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2896-82-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads