cycbot | b9066ac867a7adc0a4d0c97bf2d0266bfa7509cc9ecd146ad337b82b71365437

General

Target

a389fd9a554d939f099751280275793c_JaffaCakes118.exe
Size

169KB
MD5

a389fd9a554d939f099751280275793c
SHA1

fec10824e1ca87a04e52b377649aadd7dec3d39f
SHA256

b9066ac867a7adc0a4d0c97bf2d0266bfa7509cc9ecd146ad337b82b71365437
SHA512

c8f4a87e09ecc81330b1a6b5b1d6ac315608ba5d0b5af9edb93ebae1682b7b6bbf95c0f8d3eee58163152a64de9874529b9bc50fa13b063f9e601e479fe736c6
SSDEEP

3072:+pQ2fNwW2xMcMMCJCbPcDnslHetEUADLFi+bBxQ7jqUWXW5:+pQ21ZUvMM2LE+tuLFi+bBi/Np

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/2408-15-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral1/memory/2408-14-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral1/memory/2036-16-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral1/memory/2036-17-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral1/memory/2036-78-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral1/memory/1472-83-0x0000000000400000-0x0000000000491000-memory.dmp	family_cycbot
behavioral1/memory/2036-178-0x0000000000400000-0x0000000000491000-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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\20E7C\\128E9.exe"	a389fd9a554d939f099751280275793c_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 10 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2036-2-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/2408-12-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/2408-15-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/2408-14-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/2036-16-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral1/memory/2036-17-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/2036-78-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/1472-81-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/1472-83-0x0000000000400000-0x0000000000491000-memory.dmp	upx
behavioral1/memory/2036-178-0x0000000000400000-0x0000000000491000-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	a389fd9a554d939f099751280275793c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a389fd9a554d939f099751280275793c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a389fd9a554d939f099751280275793c_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2036 wrote to memory of 2408	2036	a389fd9a554d939f099751280275793c_JaffaCakes118.exe	30
PID 2036 wrote to memory of 2408	2036	a389fd9a554d939f099751280275793c_JaffaCakes118.exe	30
PID 2036 wrote to memory of 2408	2036	a389fd9a554d939f099751280275793c_JaffaCakes118.exe	30
PID 2036 wrote to memory of 2408	2036	a389fd9a554d939f099751280275793c_JaffaCakes118.exe	30
PID 2036 wrote to memory of 1472	2036	a389fd9a554d939f099751280275793c_JaffaCakes118.exe	32
PID 2036 wrote to memory of 1472	2036	a389fd9a554d939f099751280275793c_JaffaCakes118.exe	32
PID 2036 wrote to memory of 1472	2036	a389fd9a554d939f099751280275793c_JaffaCakes118.exe	32
PID 2036 wrote to memory of 1472	2036	a389fd9a554d939f099751280275793c_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\a389fd9a554d939f099751280275793c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a389fd9a554d939f099751280275793c_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2036
- C:\Users\Admin\AppData\Local\Temp\a389fd9a554d939f099751280275793c_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\a389fd9a554d939f099751280275793c_JaffaCakes118.exe startC:\Program Files (x86)\LP\E912\DDE.exe%C:\Program Files (x86)\LP\E912
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2408
- C:\Users\Admin\AppData\Local\Temp\a389fd9a554d939f099751280275793c_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\a389fd9a554d939f099751280275793c_JaffaCakes118.exe startC:\Program Files (x86)\7C673\lvvm.exe%C:\Program Files (x86)\7C673
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1472

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\20E7C\C673.0E7

Filesize
1KB

MD5
8ae026be4e3c31a912197bf7970db316

SHA1
1c24251c9bf942b58c7dcfeef26364e4ad5c068c

SHA256
dd364139652c0a7e3fcb0c86ea2495253ea502df9f4cc0fcbe6fa16c9283bdcf

SHA512
4f07d0984c09f4e9f1ef7fb3aa9cfe4ba0b501f111ef92aa9d464b51a9b17f1f164c3a9c587454ebf1bcc4e247bb457f1a1e0c542753eda00fbc9334b339ecb1

Download Submit
C:\Users\Admin\AppData\Roaming\20E7C\C673.0E7

Filesize
600B

MD5
936817de3ed81831949f61ce5ab2efe4

SHA1
c1173f5fbe2d643926e4466eb46ef4418c598f98

SHA256
b066bfd8a71d2e53248bcbe949a31a3240f9a94f5d11dbe6da69eaf33a45b09d

SHA512
536ea01007bb27099c101d8b57704b09bbb038b135e27c560d59e914ef972df535d3827481749c9baffeae3fe099ac11a5247c59e6a62707de75d29041479179

Download Submit
C:\Users\Admin\AppData\Roaming\20E7C\C673.0E7

Filesize
996B

MD5
2acd1637260502e1525af649acf996b7

SHA1
907fd85c5c830a31ba673357b0d9114766da53ff

SHA256
bcdadcca454c09a089d6b211dae1f4bdce759baf25635f586a555da4f8422424

SHA512
d62b64c1fc09bb656d5a38b5122b40f77fd9755b9772ad158740ec9df55926196d271a0fb9fba8ae53317bb157144bf545b39a27b390f1961facd66f32669d01

Download Submit
memory/1472-80-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/1472-83-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/1472-81-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2036-17-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2036-1-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2036-78-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2036-16-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2036-2-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2036-178-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2408-14-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2408-15-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2408-12-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads