cycbot | 9d0eebe40aeedb7a33d6c93e1370a4b3a0d2c1ff7868b33f87672f4248f2d0c3

General

Target

e3b819b82243a8eb75673a9bb77a2aaa_JaffaCakes118.exe
Size

168KB
MD5

e3b819b82243a8eb75673a9bb77a2aaa
SHA1

b62167d96bdb6437ec3fec596d95f5c7ce91b731
SHA256

9d0eebe40aeedb7a33d6c93e1370a4b3a0d2c1ff7868b33f87672f4248f2d0c3
SHA512

c4f2b5e467205406a0a4fb35f346152ea11972a2ade8f793b47a4e07600775fc6e80804b384d08354ee4cccd14c8cf41d0f639e241beab8ae96006b490592372
SSDEEP

3072:3w0kxfJr+HMTthTtsOkmeD0wVoCin2c2mRO0edWnecPEH/dpQji+:ExV+sT6keD7obLFne+4H/8jN

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 7 IoCs

Cycbot is a backdoor and trojan written in C++.

resource	yara_rule
behavioral1/memory/2780-13-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral1/memory/2780-12-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral1/memory/2684-15-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral1/memory/2684-16-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral1/memory/2684-75-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral1/memory/2160-78-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral1/memory/2684-182-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\818F6\\6AC2C.exe"	e3b819b82243a8eb75673a9bb77a2aaa_JaffaCakes118.exe

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

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2684-2-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/2780-13-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral1/memory/2780-12-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/2684-15-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral1/memory/2684-16-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/2684-75-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/2160-78-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/2160-79-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral1/memory/2684-182-0x0000000000400000-0x0000000000490000-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	e3b819b82243a8eb75673a9bb77a2aaa_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e3b819b82243a8eb75673a9bb77a2aaa_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e3b819b82243a8eb75673a9bb77a2aaa_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2684 wrote to memory of 2780	2684	e3b819b82243a8eb75673a9bb77a2aaa_JaffaCakes118.exe	30
PID 2684 wrote to memory of 2780	2684	e3b819b82243a8eb75673a9bb77a2aaa_JaffaCakes118.exe	30
PID 2684 wrote to memory of 2780	2684	e3b819b82243a8eb75673a9bb77a2aaa_JaffaCakes118.exe	30
PID 2684 wrote to memory of 2780	2684	e3b819b82243a8eb75673a9bb77a2aaa_JaffaCakes118.exe	30
PID 2684 wrote to memory of 2160	2684	e3b819b82243a8eb75673a9bb77a2aaa_JaffaCakes118.exe	32
PID 2684 wrote to memory of 2160	2684	e3b819b82243a8eb75673a9bb77a2aaa_JaffaCakes118.exe	32
PID 2684 wrote to memory of 2160	2684	e3b819b82243a8eb75673a9bb77a2aaa_JaffaCakes118.exe	32
PID 2684 wrote to memory of 2160	2684	e3b819b82243a8eb75673a9bb77a2aaa_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\e3b819b82243a8eb75673a9bb77a2aaa_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e3b819b82243a8eb75673a9bb77a2aaa_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2684
- C:\Users\Admin\AppData\Local\Temp\e3b819b82243a8eb75673a9bb77a2aaa_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\e3b819b82243a8eb75673a9bb77a2aaa_JaffaCakes118.exe startC:\Program Files (x86)\LP\2C08\619.exe%C:\Program Files (x86)\LP\2C08
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2780
- C:\Users\Admin\AppData\Local\Temp\e3b819b82243a8eb75673a9bb77a2aaa_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\e3b819b82243a8eb75673a9bb77a2aaa_JaffaCakes118.exe startC:\Program Files (x86)\F6D9E\lvvm.exe%C:\Program Files (x86)\F6D9E
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2160

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

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\818F6\6D9E.18F

Filesize
1KB

MD5
3643660ea67a8ae07cf199ea5fcb5991

SHA1
a4e95f7874653c887785275886301f224a689357

SHA256
a0b1d1aeaacc2051f8c1e3de4a8bf81e7a407988f972928481b8b24bd94d6a7b

SHA512
706f77c167dcd406a04a782da0abb3d9d1fc0c826b4cd4de8dc2581eed63975002cd1f1833665899f3dc5e285c5397dc6cb244c09c34fa47d359b47b2b7d56a2

Download Submit
C:\Users\Admin\AppData\Roaming\818F6\6D9E.18F

Filesize
600B

MD5
b309ffe47dd91194016bf75b4ea9fa9d

SHA1
bc792c3d9cd985b8fa16298a31ed7dd7e11f32be

SHA256
08da11f91acb095c9149272dd41053642bca2965534d864b6c67105e608ccc70

SHA512
b605edc88ccf83a3d498fee9aff3b03fd66de9a441f93f4e13b1f607678f67863e56aa8aff0623745d0ce4c46e2b523eea35092a927a180335a522113178ace6

Download Submit
C:\Users\Admin\AppData\Roaming\818F6\6D9E.18F

Filesize
996B

MD5
2ff734db2d3930a5fe2ae317832bf504

SHA1
484d218e567ef13f461580ed9ecffe25a53a1414

SHA256
13c53f68727a78e7309dd65d9076d42af4a98af0fbb5439df4142197d5103b79

SHA512
1d7def9db7e0c4fbaf8401fd5db8fdb6e08187158cfdc60d06343a683c78bd3624e25662c4941ea96a1c903af3f5809049f041b6d02464f7cc92678b21edc555

Download Submit
memory/2160-77-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2160-79-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2160-78-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2684-16-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2684-1-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/2684-75-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2684-15-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/2684-2-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2684-182-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2780-12-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/2780-14-0x0000000002160000-0x00000000021DB000-memory.dmp

Filesize
492KB

Download
memory/2780-13-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads