cycbot | a028fbb2258686018ae123b93b96b4f6f55fd8b1937086c0b8f8d8e828330528

General

Target

JaffaCakes118_69df22aca47809a2ff4f87b6819d0a3c.exe
Size

175KB
MD5

69df22aca47809a2ff4f87b6819d0a3c
SHA1

dbd6ef73e9011721a52ae0879966fe9e51dcdeb1
SHA256

a028fbb2258686018ae123b93b96b4f6f55fd8b1937086c0b8f8d8e828330528
SHA512

61d282c5c35b8ef2109c15c1377444db7327575678378eb13fcb0b8ccb84955dad844230048ea167a12526cd3a176572a4adc14cd1068f987b9b9204118ce81a
SSDEEP

3072:BJUdz6ucZ48oTFUxXrG8p9ioNu1DYMRz9ucjr1M:k/cm8XTpM711M

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/2780-7-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/3028-13-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/2892-80-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/3028-145-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral1/memory/3028-185-0x0000000000400000-0x000000000044B000-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_69df22aca47809a2ff4f87b6819d0a3c.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3028-1-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2780-7-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/3028-13-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2892-79-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/2892-80-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/3028-145-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral1/memory/3028-185-0x0000000000400000-0x000000000044B000-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_69df22aca47809a2ff4f87b6819d0a3c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_69df22aca47809a2ff4f87b6819d0a3c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_69df22aca47809a2ff4f87b6819d0a3c.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3028 wrote to memory of 2780	3028	JaffaCakes118_69df22aca47809a2ff4f87b6819d0a3c.exe	30
PID 3028 wrote to memory of 2780	3028	JaffaCakes118_69df22aca47809a2ff4f87b6819d0a3c.exe	30
PID 3028 wrote to memory of 2780	3028	JaffaCakes118_69df22aca47809a2ff4f87b6819d0a3c.exe	30
PID 3028 wrote to memory of 2780	3028	JaffaCakes118_69df22aca47809a2ff4f87b6819d0a3c.exe	30
PID 3028 wrote to memory of 2892	3028	JaffaCakes118_69df22aca47809a2ff4f87b6819d0a3c.exe	32
PID 3028 wrote to memory of 2892	3028	JaffaCakes118_69df22aca47809a2ff4f87b6819d0a3c.exe	32
PID 3028 wrote to memory of 2892	3028	JaffaCakes118_69df22aca47809a2ff4f87b6819d0a3c.exe	32
PID 3028 wrote to memory of 2892	3028	JaffaCakes118_69df22aca47809a2ff4f87b6819d0a3c.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_69df22aca47809a2ff4f87b6819d0a3c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_69df22aca47809a2ff4f87b6819d0a3c.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3028
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_69df22aca47809a2ff4f87b6819d0a3c.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_69df22aca47809a2ff4f87b6819d0a3c.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2780
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_69df22aca47809a2ff4f87b6819d0a3c.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_69df22aca47809a2ff4f87b6819d0a3c.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2892

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\424D.F52

Filesize
600B

MD5
19682c9432f8d4bedadd33e3647305cc

SHA1
8972a9d7b032730f005011d5e63dc40047925a67

SHA256
e8f83596682bd2df0c9c298e90efa1e0a8a78d9f766daebacff5baade86ef049

SHA512
e9c46f4dd59a4c7dbcf32e96eb72016a5644f187a05bc2a80c0c2fc02c1c8e3d4def47f528577009eeda44d9e532cae3281aeb55659439dceed9d841648b1777

Download Submit
C:\Users\Admin\AppData\Roaming\424D.F52

Filesize
1KB

MD5
567a2b451ade5edf7b154a94b7462857

SHA1
5f17d9edf585278413f6ed90c8d12fe81e52760f

SHA256
d2897ba418ca93d2d35e80d542720e29b5a91f8530229dfa654e8f5eb4e8d579

SHA512
ce38ed4d2d7f8c6e07d03b78504ee3d832acfc8b09d62bf1b6c49b54d56a5ec6877b50b610dd08a1abbfe72e986753780d366fc4dc326f408b9bb61a284beac4

Download Submit
C:\Users\Admin\AppData\Roaming\424D.F52

Filesize
996B

MD5
f00cf73536e424dc2aa73dff14443fce

SHA1
35e09d7d99c2fd60325a1413e31ef25cdb4c391a

SHA256
7653bc28943ccdffd3e56d44fffd36dc1c260f86efaeae8f087aefa422e01163

SHA512
9717fd7aa9ed9d2a67c34d0088c2ef132314e11013220a5185f74c85178e5316b31f76ccbeecc2fff59c254e3372a36b0ffb431a380198378cbff22cc9dddb91

Download Submit
memory/2780-7-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2780-8-0x00000000002D8000-0x00000000002F1000-memory.dmp

Filesize
100KB

Download
memory/2892-79-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2892-78-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2892-80-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/3028-1-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/3028-13-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/3028-145-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/3028-185-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads