cycbot | 54b791f301da47e0f636b50e687e5b8911dacc04a6d9ca905dd98165da93db65

General

Target

e38d12bf573472a77285224c9ebddc38_JaffaCakes118.exe
Size

168KB
MD5

e38d12bf573472a77285224c9ebddc38
SHA1

02f9fab051c166a4a355d481c7434863d3fe1755
SHA256

54b791f301da47e0f636b50e687e5b8911dacc04a6d9ca905dd98165da93db65
SHA512

8ab4a68e8909bb36881f959dc8a0e570d73cee0acf1d75f94beb06fd99c2941eb2856e9585cd0da8d0c3904a3bae40f361a43805c014e53f05ffedbac963971d
SSDEEP

3072:z9x66a+uVm3THhbB7Nu3oyaw+0NraoPbpdwPtMgyYbsbvdIsQXSH+1zvGEW:CxdVm3bXOd+0oqH8tltQH+B

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/3056-7-0x0000000000400000-0x000000000043D000-memory.dmp	family_cycbot
behavioral1/memory/1920-14-0x0000000000400000-0x000000000043D000-memory.dmp	family_cycbot
behavioral1/memory/1920-80-0x0000000000400000-0x000000000043D000-memory.dmp	family_cycbot
behavioral1/memory/2088-84-0x0000000000400000-0x000000000043D000-memory.dmp	family_cycbot
behavioral1/memory/1920-174-0x0000000000400000-0x000000000043D000-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"	e38d12bf573472a77285224c9ebddc38_JaffaCakes118.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1920-2-0x0000000000400000-0x000000000043D000-memory.dmp	upx
behavioral1/memory/3056-7-0x0000000000400000-0x000000000043D000-memory.dmp	upx
behavioral1/memory/3056-6-0x0000000000400000-0x000000000043D000-memory.dmp	upx
behavioral1/memory/3056-5-0x0000000000400000-0x000000000043D000-memory.dmp	upx
behavioral1/memory/1920-14-0x0000000000400000-0x000000000043D000-memory.dmp	upx
behavioral1/memory/1920-80-0x0000000000400000-0x000000000043D000-memory.dmp	upx
behavioral1/memory/2088-82-0x0000000000400000-0x000000000043D000-memory.dmp	upx
behavioral1/memory/2088-84-0x0000000000400000-0x000000000043D000-memory.dmp	upx
behavioral1/memory/1920-174-0x0000000000400000-0x000000000043D000-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	e38d12bf573472a77285224c9ebddc38_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e38d12bf573472a77285224c9ebddc38_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e38d12bf573472a77285224c9ebddc38_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1920 wrote to memory of 3056	1920	e38d12bf573472a77285224c9ebddc38_JaffaCakes118.exe	30
PID 1920 wrote to memory of 3056	1920	e38d12bf573472a77285224c9ebddc38_JaffaCakes118.exe	30
PID 1920 wrote to memory of 3056	1920	e38d12bf573472a77285224c9ebddc38_JaffaCakes118.exe	30
PID 1920 wrote to memory of 3056	1920	e38d12bf573472a77285224c9ebddc38_JaffaCakes118.exe	30
PID 1920 wrote to memory of 2088	1920	e38d12bf573472a77285224c9ebddc38_JaffaCakes118.exe	32
PID 1920 wrote to memory of 2088	1920	e38d12bf573472a77285224c9ebddc38_JaffaCakes118.exe	32
PID 1920 wrote to memory of 2088	1920	e38d12bf573472a77285224c9ebddc38_JaffaCakes118.exe	32
PID 1920 wrote to memory of 2088	1920	e38d12bf573472a77285224c9ebddc38_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\e38d12bf573472a77285224c9ebddc38_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e38d12bf573472a77285224c9ebddc38_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1920
- C:\Users\Admin\AppData\Local\Temp\e38d12bf573472a77285224c9ebddc38_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\e38d12bf573472a77285224c9ebddc38_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3056
- C:\Users\Admin\AppData\Local\Temp\e38d12bf573472a77285224c9ebddc38_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\e38d12bf573472a77285224c9ebddc38_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2088

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\5ECF.870

Filesize
1KB

MD5
bc0bfef413d05da6f7ca8fab66263b7d

SHA1
519bb1ef278f9a6b04c6493804f1f34efae1b907

SHA256
2a8f90c7a469c45bfa4cb36fa61d6f45fca47ce0dfc53b460279c6bd11f92286

SHA512
4d9125d5e303e922cfaa0b75e4380af3c4b1b7a0a20b442e53c2d295cf59858ae31fcd55e115afdb4c8c762c464964abbeee717840d56bf35792c853656b197a

Download Submit
C:\Users\Admin\AppData\Roaming\5ECF.870

Filesize
600B

MD5
56bd6b667c4cf6a27bd196360e82f62a

SHA1
ac88dc0d3e8d81b854c47acdd105988e50214e06

SHA256
9b27db53ed9c5093eea778ebf38536226f782758ee36fbf92947d4cd782e9995

SHA512
36e98fa99668e94793bac6f05688719312fc6374e527074b8359234167e9fb394d8e9c2eb8400bc4ff8f7e76bf79cd7c503996098fdbb20fe2e8a2bdc433c959

Download Submit
C:\Users\Admin\AppData\Roaming\5ECF.870

Filesize
996B

MD5
e331f4d8ce9212439c50f644e3f13e01

SHA1
407f79a05b4e0dff243ef1e4a82c7eab3314facd

SHA256
91609497679932885c877d7bff36f3ca6172bdf53cb21334f9fad453cecb7ed2

SHA512
677b882341ad8e68af5b18b6fedeea6e29bd8a0d03909ec10bf1149023f9f662c73ca6fd9510abd45c0485a6dcc2e6ccae2dd928e9dc978abdf4868c9b786f3a

Download Submit
memory/1920-1-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1920-2-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1920-174-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1920-14-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1920-80-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2088-84-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2088-82-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/3056-5-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/3056-6-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/3056-7-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads