cycbot | d31bfbce88b6b689577b88ca13849d722aa675083b87119268bdee3d83ab465e

General

Target

e78d9e0f45c173e095f7ec19217b43c0_JaffaCakes118.exe
Size

188KB
MD5

e78d9e0f45c173e095f7ec19217b43c0
SHA1

b6245898afa7279abb1752d4d45630052b5e1d76
SHA256

d31bfbce88b6b689577b88ca13849d722aa675083b87119268bdee3d83ab465e
SHA512

c2817608ad4e1c906d40a79c4afee35b000ea4283d7e3ac863c27ef22e05467688f14b3f23013a45d6790f5157a6fa2834b149f835b28563722a76ae11e0fd27
SSDEEP

3072:vU6YwDTF1jEwy3aWxk/jIZ6S8CgN7+Mm6N8pN31GLKiDS+QxcLr7TdAo:vUcXFFEzCUp8CgAMmU8D1GLhbQM7T

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/2868-6-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2068-14-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/1316-81-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2068-82-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2068-185-0x0000000000400000-0x0000000000445000-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"	e78d9e0f45c173e095f7ec19217b43c0_JaffaCakes118.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2068-2-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2868-5-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2868-6-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2068-14-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/1316-81-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2068-82-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2068-185-0x0000000000400000-0x0000000000445000-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	e78d9e0f45c173e095f7ec19217b43c0_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e78d9e0f45c173e095f7ec19217b43c0_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e78d9e0f45c173e095f7ec19217b43c0_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2068 wrote to memory of 2868	2068	e78d9e0f45c173e095f7ec19217b43c0_JaffaCakes118.exe	30
PID 2068 wrote to memory of 2868	2068	e78d9e0f45c173e095f7ec19217b43c0_JaffaCakes118.exe	30
PID 2068 wrote to memory of 2868	2068	e78d9e0f45c173e095f7ec19217b43c0_JaffaCakes118.exe	30
PID 2068 wrote to memory of 2868	2068	e78d9e0f45c173e095f7ec19217b43c0_JaffaCakes118.exe	30
PID 2068 wrote to memory of 1316	2068	e78d9e0f45c173e095f7ec19217b43c0_JaffaCakes118.exe	32
PID 2068 wrote to memory of 1316	2068	e78d9e0f45c173e095f7ec19217b43c0_JaffaCakes118.exe	32
PID 2068 wrote to memory of 1316	2068	e78d9e0f45c173e095f7ec19217b43c0_JaffaCakes118.exe	32
PID 2068 wrote to memory of 1316	2068	e78d9e0f45c173e095f7ec19217b43c0_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\e78d9e0f45c173e095f7ec19217b43c0_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e78d9e0f45c173e095f7ec19217b43c0_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2068
- C:\Users\Admin\AppData\Local\Temp\e78d9e0f45c173e095f7ec19217b43c0_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\e78d9e0f45c173e095f7ec19217b43c0_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2868
- C:\Users\Admin\AppData\Local\Temp\e78d9e0f45c173e095f7ec19217b43c0_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\e78d9e0f45c173e095f7ec19217b43c0_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1316

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\AFF2.F91

Filesize
1KB

MD5
b7130f209c7d32dc207a1b3284c381fa

SHA1
4e03007d6aa43a1521ed76475b687d44d75c742a

SHA256
bdcebed47604cdf44114a48d689d991658b686f135b0d6b5035a3c6c3790c72c

SHA512
f8a5cb901755b26b642767fd3a0daf905203f75ced69d37840beb49ecb7c24f0180c1e81a84473095180c724560d3bb2da36d99c0486d0e598caa3b2d99f2ad3

Download Submit
C:\Users\Admin\AppData\Roaming\AFF2.F91

Filesize
600B

MD5
f66057116ba0dba266cec9a2e80bbca1

SHA1
dbf47ca3f21007d26cefa8ee2bc1fa6f8181a6d9

SHA256
d4acd099312ff048d75e755a59622f0b60bbacc5dddecc698b3320d41b570124

SHA512
7eec1c1d771650ee2d5c58c8f9e9222e411d1de703e98f8c8556d5c56bd3152fc3d10c78c2cd02c6d25033eae813e811dd1ce327f74c137fd216cfc06a91b97a

Download Submit
C:\Users\Admin\AppData\Roaming\AFF2.F91

Filesize
996B

MD5
905266398213e251f733e6fb0639ac37

SHA1
aca1e100c48b3bb56b5c11ac9ddefbcca90cde65

SHA256
93d5abd757c243c407a9f523b55b398c8f0c0711b56779c53edb3f95ca0c849f

SHA512
38ea50209914ddbb6c7645c16d995b5006e8fc810d3eb74bd4550d2d3e6509d524aa0241c5dee3a6f837e9343af76f7cee06055ebe10fa4e635f967b486bebc2

Download Submit
memory/1316-81-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2068-1-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2068-2-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2068-14-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2068-82-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2068-185-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2868-5-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2868-6-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads