cycbot | 8b46106985b66c08217ca954ce45e0782cc9656fc7ed2b1fe189b2fc8bd21281

General

Target

e40061adb0a7d4632d60dd05a141a9dd_JaffaCakes118.exe
Size

176KB
MD5

e40061adb0a7d4632d60dd05a141a9dd
SHA1

b2be93887080ae26bf970ed8445fc8220721fb13
SHA256

8b46106985b66c08217ca954ce45e0782cc9656fc7ed2b1fe189b2fc8bd21281
SHA512

cc2d2acfc8ae52991d17021a71a9b4cba5390c7f668ba43b9be1b0b34c5ae56c3ba07dc05ace84fd81208aa05e1874b18d926bbb802bbabfd2cde7b8ab5942b6
SSDEEP

3072:GJ4ujspDuTsIDV/gWtgapfGOLxJUgi9WSV4x7KEigdG:GJtwSsIJ/g9apeOLjb6VV4M

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/2836-14-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/1508-15-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/1508-89-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2180-93-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/1508-209-0x0000000000400000-0x0000000000445000-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"	e40061adb0a7d4632d60dd05a141a9dd_JaffaCakes118.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1508-2-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2836-13-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2836-12-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2836-14-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/1508-15-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/1508-89-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2180-92-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2180-93-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/1508-209-0x0000000000400000-0x0000000000445000-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	e40061adb0a7d4632d60dd05a141a9dd_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e40061adb0a7d4632d60dd05a141a9dd_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e40061adb0a7d4632d60dd05a141a9dd_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1508 wrote to memory of 2836	1508	e40061adb0a7d4632d60dd05a141a9dd_JaffaCakes118.exe	30
PID 1508 wrote to memory of 2836	1508	e40061adb0a7d4632d60dd05a141a9dd_JaffaCakes118.exe	30
PID 1508 wrote to memory of 2836	1508	e40061adb0a7d4632d60dd05a141a9dd_JaffaCakes118.exe	30
PID 1508 wrote to memory of 2836	1508	e40061adb0a7d4632d60dd05a141a9dd_JaffaCakes118.exe	30
PID 1508 wrote to memory of 2180	1508	e40061adb0a7d4632d60dd05a141a9dd_JaffaCakes118.exe	32
PID 1508 wrote to memory of 2180	1508	e40061adb0a7d4632d60dd05a141a9dd_JaffaCakes118.exe	32
PID 1508 wrote to memory of 2180	1508	e40061adb0a7d4632d60dd05a141a9dd_JaffaCakes118.exe	32
PID 1508 wrote to memory of 2180	1508	e40061adb0a7d4632d60dd05a141a9dd_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\e40061adb0a7d4632d60dd05a141a9dd_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e40061adb0a7d4632d60dd05a141a9dd_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1508
- C:\Users\Admin\AppData\Local\Temp\e40061adb0a7d4632d60dd05a141a9dd_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\e40061adb0a7d4632d60dd05a141a9dd_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2836
- C:\Users\Admin\AppData\Local\Temp\e40061adb0a7d4632d60dd05a141a9dd_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\e40061adb0a7d4632d60dd05a141a9dd_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2180

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\3A8D.9E8

Filesize
1KB

MD5
dcfd67008b43377b0ec3dc240ce6b55b

SHA1
4340ab799c9acb6f0e21a5d0c1d27e2b9d63b75b

SHA256
ab8ce8afca179a1bc20ed73833f3b818ee660557f2a14ffb20a285cafec4545f

SHA512
7154cdeb423fc12118ed3093e55a8e3f8ac62dbb2d6be71dcd7ce98409f0a2cf680cc3386dae43d5a2e6ba01cc70adcb9a42f186d0346742aa54a5567fc09ed0

Download Submit
C:\Users\Admin\AppData\Roaming\3A8D.9E8

Filesize
600B

MD5
1844d2660fc6bbcff9515fd6cd60e2c4

SHA1
509ab67758995e56e4dbc0e96b816607432372fa

SHA256
7bd9cfdb6263ba9dd8caae4a7c029c0dbbcecb8c05bd2e768ae6bc0199b2540a

SHA512
e696366be4eea3be06eca0db8016ddbd369df3018484ecf475c40ebb988bd5219022b33cf39df2bb5ceb8a09248e11cd12768ba90913a8e6b41d7ac3b97066e6

Download Submit
C:\Users\Admin\AppData\Roaming\3A8D.9E8

Filesize
996B

MD5
16dc69611d5a7fe22e1837fd3e300ed3

SHA1
0530aed6b5f3296cc44a3da62f1441528b6e1fb0

SHA256
06538e0769c71ef72dc69f7945412d5e3dd83edd57d4df2f0349fc656a0b68fe

SHA512
6776fcf2d3ff24f2a459778504665e0b6cd234a4222a264e6daab6c0c9276191fce200b6fc0c789ccc0ac4ddd515dc67bad7ecbcb477939ddeca56d1de7f02bc

Download Submit
memory/1508-89-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1508-2-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1508-209-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1508-1-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1508-15-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2180-91-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2180-92-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2180-93-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2836-14-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2836-12-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2836-13-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads