cycbot | e1988e0421ae089847dde234008e091b54d58f54c1ae663dd6c521c7d5a8e945

General

Target

f3d5bb873a19e23a6e7b6db9737411d8_JaffaCakes118.exe
Size

179KB
MD5

f3d5bb873a19e23a6e7b6db9737411d8
SHA1

93477fec59e1e3c689a98f576dcd84a2f3eb2adf
SHA256

e1988e0421ae089847dde234008e091b54d58f54c1ae663dd6c521c7d5a8e945
SHA512

2fd719d9a246d8a4e538d26cf58e7b61e27a4ce9cc8fd4d76d5332a8dc3bde82b78bcab8a3e2e6b2ba0f5803f6f76497e4d7cbd5eeaf1094f943d2784a899b91
SSDEEP

3072:U6kGMVrSa8XbK5R4H3XSp7FyosqblHa7dGdl3NhJuwLQp6lyFV8aM2iU96:U6pMd38XbeR4HsJhbl67dGrXJVlqZXiU

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/2704-5-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2648-13-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/300-80-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2648-81-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2648-180-0x0000000000400000-0x0000000000442000-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"	f3d5bb873a19e23a6e7b6db9737411d8_JaffaCakes118.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2648-2-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2704-5-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2648-13-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/300-80-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2648-81-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2648-180-0x0000000000400000-0x0000000000442000-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	f3d5bb873a19e23a6e7b6db9737411d8_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f3d5bb873a19e23a6e7b6db9737411d8_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f3d5bb873a19e23a6e7b6db9737411d8_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2648 wrote to memory of 2704	2648	f3d5bb873a19e23a6e7b6db9737411d8_JaffaCakes118.exe	30
PID 2648 wrote to memory of 2704	2648	f3d5bb873a19e23a6e7b6db9737411d8_JaffaCakes118.exe	30
PID 2648 wrote to memory of 2704	2648	f3d5bb873a19e23a6e7b6db9737411d8_JaffaCakes118.exe	30
PID 2648 wrote to memory of 2704	2648	f3d5bb873a19e23a6e7b6db9737411d8_JaffaCakes118.exe	30
PID 2648 wrote to memory of 300	2648	f3d5bb873a19e23a6e7b6db9737411d8_JaffaCakes118.exe	32
PID 2648 wrote to memory of 300	2648	f3d5bb873a19e23a6e7b6db9737411d8_JaffaCakes118.exe	32
PID 2648 wrote to memory of 300	2648	f3d5bb873a19e23a6e7b6db9737411d8_JaffaCakes118.exe	32
PID 2648 wrote to memory of 300	2648	f3d5bb873a19e23a6e7b6db9737411d8_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\f3d5bb873a19e23a6e7b6db9737411d8_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f3d5bb873a19e23a6e7b6db9737411d8_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2648
- C:\Users\Admin\AppData\Local\Temp\f3d5bb873a19e23a6e7b6db9737411d8_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f3d5bb873a19e23a6e7b6db9737411d8_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2704
- C:\Users\Admin\AppData\Local\Temp\f3d5bb873a19e23a6e7b6db9737411d8_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f3d5bb873a19e23a6e7b6db9737411d8_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:300

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\32BA.025

Filesize
1KB

MD5
7ee0a2000f95d234c1c79ef77fda01d1

SHA1
823a20fa459a8fdf8ff4cd60dc18c0c00f50ae2d

SHA256
505ac26bead203f7caf699c744c43f9bf128cf40fd2f22c1c53a838fac21961e

SHA512
5708ddde158e1c5ba6c2c641768c18c1ac6e632b983a9f66a87557ce6db4f93decb73ae3c717507840a0886cf9a3b155458d73a156fc1fb076c226b2dbcf6d6e

Download Submit
C:\Users\Admin\AppData\Roaming\32BA.025

Filesize
600B

MD5
56079351d7a9591ce6ec8568c6b65730

SHA1
5f98fe6bd36d5c004728be09644383e4bfeaafdd

SHA256
32051bbfb9ec4c3249e6399f3455802ba0851a27d7c9eb6ed75e44cc4c1dbcb6

SHA512
0105e4f6df2c40f579ff2283477a87dd7dd3354eaf10be19fd9945e43074f7c69f040643a43b1ae774aff73a2121114e2d7dbf9944c100a295798bf4709b19ee

Download Submit
C:\Users\Admin\AppData\Roaming\32BA.025

Filesize
996B

MD5
5aca2cd06df5f547dea795b3798199b7

SHA1
6fbcb01d3e6469ad93bf719ae4718e5522795d79

SHA256
cc028f5b01155d2d651c231063b01513a4dd79228f7acf86ac52cf6cce01ea05

SHA512
dddd0fda4c96bcdd34b4ce9a1ce4beab5e8aa028fb323e766ef88f67c942b3bffe22a02debdf3290b29e0ca627472793b055e74f629cfe2f354fa6175e161194

Download Submit
memory/300-80-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2648-1-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2648-2-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2648-13-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2648-81-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2648-180-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2704-5-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads