cycbot | b6612509eac6a3dee17cacbcccfa1aaa57619bb6f593b70b6b9a29a11ba3e44d

General

Target

9cb1161eaa5d50936df0d55924a22525_JaffaCakes118.exe
Size

168KB
MD5

9cb1161eaa5d50936df0d55924a22525
SHA1

2fd84ac688c09b88c8170e685db183290569a93d
SHA256

b6612509eac6a3dee17cacbcccfa1aaa57619bb6f593b70b6b9a29a11ba3e44d
SHA512

2954796a7a9cf6d34c5cf486c5aac6a5b1804b8bc875319375da00d12c6cab8cd9b07ca8312d0f46121cd614844064cdfade96e4296d0787fef1d14918f9a1e2
SSDEEP

3072:hTtdyCBUAgafWE20tlow3LDx1GhuyZrALlooytHBDeZd3c:hjy27fWwtL7Dx1G1ZkLlooyzDUc

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/2928-7-0x0000000000400000-0x000000000043E000-memory.dmp	family_cycbot
behavioral1/memory/2768-17-0x0000000000400000-0x000000000043E000-memory.dmp	family_cycbot
behavioral1/memory/1844-84-0x0000000000400000-0x000000000043E000-memory.dmp	family_cycbot
behavioral1/memory/2768-85-0x0000000000400000-0x000000000043E000-memory.dmp	family_cycbot
behavioral1/memory/2768-174-0x0000000000400000-0x000000000043E000-memory.dmp	family_cycbot
behavioral1/memory/2768-209-0x0000000000400000-0x000000000043E000-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"	9cb1161eaa5d50936df0d55924a22525_JaffaCakes118.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2768-2-0x0000000000400000-0x000000000043E000-memory.dmp	upx
behavioral1/memory/2928-6-0x0000000000400000-0x000000000043E000-memory.dmp	upx
behavioral1/memory/2928-7-0x0000000000400000-0x000000000043E000-memory.dmp	upx
behavioral1/memory/2768-17-0x0000000000400000-0x000000000043E000-memory.dmp	upx
behavioral1/memory/1844-83-0x0000000000400000-0x000000000043E000-memory.dmp	upx
behavioral1/memory/1844-84-0x0000000000400000-0x000000000043E000-memory.dmp	upx
behavioral1/memory/2768-85-0x0000000000400000-0x000000000043E000-memory.dmp	upx
behavioral1/memory/2768-174-0x0000000000400000-0x000000000043E000-memory.dmp	upx
behavioral1/memory/2768-209-0x0000000000400000-0x000000000043E000-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	9cb1161eaa5d50936df0d55924a22525_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9cb1161eaa5d50936df0d55924a22525_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9cb1161eaa5d50936df0d55924a22525_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2768 wrote to memory of 2928	2768	9cb1161eaa5d50936df0d55924a22525_JaffaCakes118.exe	30
PID 2768 wrote to memory of 2928	2768	9cb1161eaa5d50936df0d55924a22525_JaffaCakes118.exe	30
PID 2768 wrote to memory of 2928	2768	9cb1161eaa5d50936df0d55924a22525_JaffaCakes118.exe	30
PID 2768 wrote to memory of 2928	2768	9cb1161eaa5d50936df0d55924a22525_JaffaCakes118.exe	30
PID 2768 wrote to memory of 1844	2768	9cb1161eaa5d50936df0d55924a22525_JaffaCakes118.exe	32
PID 2768 wrote to memory of 1844	2768	9cb1161eaa5d50936df0d55924a22525_JaffaCakes118.exe	32
PID 2768 wrote to memory of 1844	2768	9cb1161eaa5d50936df0d55924a22525_JaffaCakes118.exe	32
PID 2768 wrote to memory of 1844	2768	9cb1161eaa5d50936df0d55924a22525_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\9cb1161eaa5d50936df0d55924a22525_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\9cb1161eaa5d50936df0d55924a22525_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2768
- C:\Users\Admin\AppData\Local\Temp\9cb1161eaa5d50936df0d55924a22525_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\9cb1161eaa5d50936df0d55924a22525_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2928
- C:\Users\Admin\AppData\Local\Temp\9cb1161eaa5d50936df0d55924a22525_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\9cb1161eaa5d50936df0d55924a22525_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1844

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\379A.DFB

Filesize
597B

MD5
2322c5978455970e284aea301793fa76

SHA1
442ae4e616122e3f834e585b603c3d1b11160983

SHA256
fca700f7893bbe7d544a88b9642740c4d6e190b230f4dd241f79185524ee8a02

SHA512
739a7ff83b4eeac3ce38daeb7140d29915210b9df8adc8a13939fddedecfef8c02a71c27e2eeba9d88de3141e5b92cf2a73f0a1755f7f8e52a8f454a2043b0c3

Download Submit
C:\Users\Admin\AppData\Roaming\379A.DFB

Filesize
1KB

MD5
13ea5014220ea827688ac6180017afdb

SHA1
af380949b51e4058e7b7c6c3d2fa75986eed681d

SHA256
5f2b9562b47f894c6e47e00db88e7c10389169b05e0bcbb811ae29f96c62c291

SHA512
f63454ff84627205ec112fc4661ada6a8aaa762be72600a8b8542acd89b61721eb797cece535725768fe376eacc3719af0472f2ae4f19dad9c61954257025040

Download Submit
C:\Users\Admin\AppData\Roaming\379A.DFB

Filesize
897B

MD5
3f7fdae59c417123e7a2abd29006e966

SHA1
dba6748cec8b4d57c7b301361f3b9b8489139933

SHA256
3ec66f0224791e38f8f6f49d105482011b216bb52ece7afe774056a51137ebf3

SHA512
7b476e1db36d375a23157692b2493fd702cab2b95d6c5070ce2c7ce644f7ccefe2c650b837e2788fb916e9b53d95bfa069dabe887e9809093512f593cfd0bcef

Download Submit
C:\Users\Admin\AppData\Roaming\379A.DFB

Filesize
1KB

MD5
f53a5af1bcea7a7b3bc1a286cad14ee8

SHA1
23a46855679cb5db9b4930251991bc31000003b4

SHA256
ed6537dbf4a71fe024a7cbb2361971f8dbc7ec711793c0f211a50324731d65c5

SHA512
3f1392d28801e515a733cd0333ca10cda4e20a384194bbbf7137a46f33184a6ed7806585d4d39c1b01fdcd064e7666e38e4fe6470aeb0a3e5893639ccbb47468

Download Submit
memory/1844-84-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/1844-83-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/2768-85-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/2768-17-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/2768-1-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/2768-2-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/2768-174-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/2768-209-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/2928-7-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/2928-6-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads