cycbot | a62c05eb6dfb2da1af9997cf8bca4e7047816b9cd33bc1dafbbe09cf12cd5fea

General

Target

JaffaCakes118_72f1f8896a3cc26fb4f9ac191ec6dcb8.exe
Size

187KB
MD5

72f1f8896a3cc26fb4f9ac191ec6dcb8
SHA1

a675677c99c3ff58189280163d1b1524a546d0cc
SHA256

a62c05eb6dfb2da1af9997cf8bca4e7047816b9cd33bc1dafbbe09cf12cd5fea
SHA512

53dc1df1ad7551ed0952b7e83677d6ed8eeb8100ee934d5a29de39708eff415cf268b4896cacd92252396b827a2f5ac140165a183032e8edce874d9b815427ce
SSDEEP

3072:v8jRKI846gBwNe8+q/rIg/CU/IaXRdhhmZ1Odf8Www+cDHAbdOcnn06hKZpg9:vmwp9TrImCQI8rhG1OiXRXbYZ6h0p

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/2768-6-0x0000000000400000-0x0000000000443000-memory.dmp	family_cycbot
behavioral1/memory/2268-15-0x0000000000400000-0x0000000000443000-memory.dmp	family_cycbot
behavioral1/memory/112-83-0x0000000000400000-0x0000000000443000-memory.dmp	family_cycbot
behavioral1/memory/2268-84-0x0000000000400000-0x0000000000443000-memory.dmp	family_cycbot
behavioral1/memory/2268-191-0x0000000000400000-0x0000000000443000-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_72f1f8896a3cc26fb4f9ac191ec6dcb8.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2268-2-0x0000000000400000-0x0000000000443000-memory.dmp	upx
behavioral1/memory/2768-5-0x0000000000400000-0x0000000000443000-memory.dmp	upx
behavioral1/memory/2768-6-0x0000000000400000-0x0000000000443000-memory.dmp	upx
behavioral1/memory/2268-15-0x0000000000400000-0x0000000000443000-memory.dmp	upx
behavioral1/memory/112-83-0x0000000000400000-0x0000000000443000-memory.dmp	upx
behavioral1/memory/2268-84-0x0000000000400000-0x0000000000443000-memory.dmp	upx
behavioral1/memory/2268-191-0x0000000000400000-0x0000000000443000-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_72f1f8896a3cc26fb4f9ac191ec6dcb8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_72f1f8896a3cc26fb4f9ac191ec6dcb8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_72f1f8896a3cc26fb4f9ac191ec6dcb8.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2268 wrote to memory of 2768	2268	JaffaCakes118_72f1f8896a3cc26fb4f9ac191ec6dcb8.exe	31
PID 2268 wrote to memory of 2768	2268	JaffaCakes118_72f1f8896a3cc26fb4f9ac191ec6dcb8.exe	31
PID 2268 wrote to memory of 2768	2268	JaffaCakes118_72f1f8896a3cc26fb4f9ac191ec6dcb8.exe	31
PID 2268 wrote to memory of 2768	2268	JaffaCakes118_72f1f8896a3cc26fb4f9ac191ec6dcb8.exe	31
PID 2268 wrote to memory of 112	2268	JaffaCakes118_72f1f8896a3cc26fb4f9ac191ec6dcb8.exe	33
PID 2268 wrote to memory of 112	2268	JaffaCakes118_72f1f8896a3cc26fb4f9ac191ec6dcb8.exe	33
PID 2268 wrote to memory of 112	2268	JaffaCakes118_72f1f8896a3cc26fb4f9ac191ec6dcb8.exe	33
PID 2268 wrote to memory of 112	2268	JaffaCakes118_72f1f8896a3cc26fb4f9ac191ec6dcb8.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_72f1f8896a3cc26fb4f9ac191ec6dcb8.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_72f1f8896a3cc26fb4f9ac191ec6dcb8.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2268
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_72f1f8896a3cc26fb4f9ac191ec6dcb8.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_72f1f8896a3cc26fb4f9ac191ec6dcb8.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2768
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_72f1f8896a3cc26fb4f9ac191ec6dcb8.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_72f1f8896a3cc26fb4f9ac191ec6dcb8.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:112

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\1847.27D

Filesize
1KB

MD5
53bb57466186e8b28a4f57ef5e2d97ac

SHA1
54d7b0cd04eb1b46ff41e3ee743311a4a20648bc

SHA256
fa2a74d5b7c2cfbd5814e6473756d95aedd598753f1bec45d201750a9ce7b0a2

SHA512
fd6ea8739e4679b6111235ee55a309a8108e3ee16cb83ee32a5be1aa09b951d1643e94a03c4dfe5e37f706f0b4aec1daf08fa9c573fc9fa121853294057aca62

Download Submit
C:\Users\Admin\AppData\Roaming\1847.27D

Filesize
600B

MD5
4a3da300400607f7510ae7b9df60287d

SHA1
783d7355d53c2a169fa87af93ae82383012146ad

SHA256
9e6c14933a7c0d49cae7c598886d8436cdbf6d77ff138857e709aae31457dfce

SHA512
49b1ac08e07fe9604ad190a41ac925e571615b77a48f5e15b5d7a340d6d4001483a605531b65ae0f6d99f725f41d9e2f4d5e6f66cda2afd7eddec5ab665dcf4f

Download Submit
C:\Users\Admin\AppData\Roaming\1847.27D

Filesize
1KB

MD5
a3abaa670a00f19170673a1335f1327c

SHA1
595232c1602cdba00d09a9240558a0607d0eaf19

SHA256
2b5977fe5b265f897b34127bef59a7ec290e976f55c81b6c8f289c0250db1471

SHA512
c194f512e9df7b8ee2d94794045ac737d1ddaa91a0f255fca159e2b41b75aabcc7173f183667fe57e59c97dc6fc5f6db1b918860a67bb570df93ee10ebe79caa

Download Submit
memory/112-83-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/2268-1-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/2268-2-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/2268-15-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/2268-84-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/2268-191-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/2768-5-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/2768-6-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads