cycbot | be548ab1807ed68394949e77d02f90f16e1e04caa6a59b6b16cb728fb2c420ec

General

Target

f9de8d71580b053a83777c28dd26142f_JaffaCakes118.exe
Size

172KB
MD5

f9de8d71580b053a83777c28dd26142f
SHA1

a34ea9cac98bd9faf74b07a06cd2583eddd20cdc
SHA256

be548ab1807ed68394949e77d02f90f16e1e04caa6a59b6b16cb728fb2c420ec
SHA512

a9c84b315cfcb4fca1d94115b0545ec8918a6e0e70189051e420da4ba58786d55674b514127925c51850e2d69c0b006a808b9f917c8f4d6ddbe53cbe565938ab
SSDEEP

3072:VCF6f1P8S92LGWuko2kr+1GA20i2tU/z6qJP2Pqb6ot5PLLtK9jpduIvR:VCF6+tCJkop+0A/kBPiq5t5PLRK97bR

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/1372-6-0x0000000000400000-0x000000000043E000-memory.dmp	family_cycbot
behavioral1/memory/2844-13-0x0000000000400000-0x000000000043E000-memory.dmp	family_cycbot
behavioral1/memory/2920-77-0x0000000000400000-0x000000000043E000-memory.dmp	family_cycbot
behavioral1/memory/2844-78-0x0000000000400000-0x000000000043E000-memory.dmp	family_cycbot
behavioral1/memory/2844-165-0x0000000000400000-0x000000000043E000-memory.dmp	family_cycbot
behavioral1/memory/2844-208-0x0000000000400000-0x000000000043E000-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"	f9de8d71580b053a83777c28dd26142f_JaffaCakes118.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2844-2-0x0000000000400000-0x000000000043E000-memory.dmp	upx
behavioral1/memory/1372-5-0x0000000000400000-0x000000000043E000-memory.dmp	upx
behavioral1/memory/1372-6-0x0000000000400000-0x000000000043E000-memory.dmp	upx
behavioral1/memory/2844-13-0x0000000000400000-0x000000000043E000-memory.dmp	upx
behavioral1/memory/2920-77-0x0000000000400000-0x000000000043E000-memory.dmp	upx
behavioral1/memory/2844-78-0x0000000000400000-0x000000000043E000-memory.dmp	upx
behavioral1/memory/2844-165-0x0000000000400000-0x000000000043E000-memory.dmp	upx
behavioral1/memory/2844-208-0x0000000000400000-0x000000000043E000-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	f9de8d71580b053a83777c28dd26142f_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f9de8d71580b053a83777c28dd26142f_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f9de8d71580b053a83777c28dd26142f_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2844 wrote to memory of 1372	2844	f9de8d71580b053a83777c28dd26142f_JaffaCakes118.exe	30
PID 2844 wrote to memory of 1372	2844	f9de8d71580b053a83777c28dd26142f_JaffaCakes118.exe	30
PID 2844 wrote to memory of 1372	2844	f9de8d71580b053a83777c28dd26142f_JaffaCakes118.exe	30
PID 2844 wrote to memory of 1372	2844	f9de8d71580b053a83777c28dd26142f_JaffaCakes118.exe	30
PID 2844 wrote to memory of 2920	2844	f9de8d71580b053a83777c28dd26142f_JaffaCakes118.exe	32
PID 2844 wrote to memory of 2920	2844	f9de8d71580b053a83777c28dd26142f_JaffaCakes118.exe	32
PID 2844 wrote to memory of 2920	2844	f9de8d71580b053a83777c28dd26142f_JaffaCakes118.exe	32
PID 2844 wrote to memory of 2920	2844	f9de8d71580b053a83777c28dd26142f_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\f9de8d71580b053a83777c28dd26142f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f9de8d71580b053a83777c28dd26142f_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2844
- C:\Users\Admin\AppData\Local\Temp\f9de8d71580b053a83777c28dd26142f_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f9de8d71580b053a83777c28dd26142f_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1372
- C:\Users\Admin\AppData\Local\Temp\f9de8d71580b053a83777c28dd26142f_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f9de8d71580b053a83777c28dd26142f_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2920

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\D0B6.29E

Filesize
1KB

MD5
4f0b9ae3b968c85dc78a4e86f3fd039d

SHA1
6902dbf53136252dc89f7c90122ceba39b6b0e72

SHA256
3185915bb0a12b71c7c9374a26624cff457231b9c9068e7a4f6f43966c1ff504

SHA512
dacdc76a1bbd373556bb1f56347beb45ad0a2829952cfa83ed9b3b2677b574648af5686c911a656d5e72475b008924cf49747fb221e3bebe5fbc78a06d23c70f

Download Submit
C:\Users\Admin\AppData\Roaming\D0B6.29E

Filesize
600B

MD5
0080773cbf86b20f8ef45e1d10b83eb3

SHA1
30229ab9d5821c189f3b10d4be292e8d30855418

SHA256
a9c94818259f39b024d936ff29da53cdc3e6e1a1fd7912df7f7e858697e10920

SHA512
c0eabd20654b9f14c55983c321514a2dd82973a78e188077f6c05f2f342fa6da050db1edc1fd53cef8cef6f161798fdfe947bb23f6beac19e19419ee8c242afd

Download Submit
C:\Users\Admin\AppData\Roaming\D0B6.29E

Filesize
996B

MD5
fd9de375f39d1e3973e40c68fbec45c1

SHA1
7b0864ff09f08b8e24ac469399a80c95db10eed7

SHA256
065fad467c5cf6554a2250fdf6ebe8432f7637d75dbb0526f5b09d7b05229822

SHA512
c870fa9f51fffee4a9da1e775644f0df7fe44da7c40d0a39728f917196679d01e2d0516f4605386d77fa5781ef60c438f34523b94a3070775d043f7131a62426

Download Submit
memory/1372-5-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/1372-6-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/2844-1-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/2844-2-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/2844-13-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/2844-78-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/2844-165-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/2844-208-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/2920-77-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads