cycbot | 0c8320b3067fd3f398bff0a7e336ddcaf07df1fe0f12af10a38f8a19d59354bb

General

Target

JaffaCakes118_6c06dcb1e0311543a1eae0c1eb124d45.exe
Size

155KB
MD5

6c06dcb1e0311543a1eae0c1eb124d45
SHA1

352cc2a87dac4ce459fd943cc706fb928979d069
SHA256

0c8320b3067fd3f398bff0a7e336ddcaf07df1fe0f12af10a38f8a19d59354bb
SHA512

fa095ebb3dd16e4332709ee74037f14b29b2dc1ea9dc3b885396c49d5a85810953ffb776aab59928530c50a2fd4d13d7c75e8083c77906e202bee6a0fc8c75bb
SSDEEP

3072:/tVBRvWKyQlM1AEzyt8p2xq+TI5gY7BHf+36vURc2fo7ozL0hL4qmmIEM:/tVzvWK1lMuqlpiqRB/G6vUR/fIozL0f

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/2784-6-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2272-14-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/3048-77-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2272-132-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2272-182-0x0000000000400000-0x0000000000442000-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"	JaffaCakes118_6c06dcb1e0311543a1eae0c1eb124d45.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2272-1-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2784-4-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2784-5-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2784-6-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2272-14-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/3048-76-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/3048-77-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2272-132-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2272-182-0x0000000000400000-0x0000000000442000-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	JaffaCakes118_6c06dcb1e0311543a1eae0c1eb124d45.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6c06dcb1e0311543a1eae0c1eb124d45.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6c06dcb1e0311543a1eae0c1eb124d45.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2272 wrote to memory of 2784	2272	JaffaCakes118_6c06dcb1e0311543a1eae0c1eb124d45.exe	31
PID 2272 wrote to memory of 2784	2272	JaffaCakes118_6c06dcb1e0311543a1eae0c1eb124d45.exe	31
PID 2272 wrote to memory of 2784	2272	JaffaCakes118_6c06dcb1e0311543a1eae0c1eb124d45.exe	31
PID 2272 wrote to memory of 2784	2272	JaffaCakes118_6c06dcb1e0311543a1eae0c1eb124d45.exe	31
PID 2272 wrote to memory of 3048	2272	JaffaCakes118_6c06dcb1e0311543a1eae0c1eb124d45.exe	33
PID 2272 wrote to memory of 3048	2272	JaffaCakes118_6c06dcb1e0311543a1eae0c1eb124d45.exe	33
PID 2272 wrote to memory of 3048	2272	JaffaCakes118_6c06dcb1e0311543a1eae0c1eb124d45.exe	33
PID 2272 wrote to memory of 3048	2272	JaffaCakes118_6c06dcb1e0311543a1eae0c1eb124d45.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6c06dcb1e0311543a1eae0c1eb124d45.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6c06dcb1e0311543a1eae0c1eb124d45.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2272
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6c06dcb1e0311543a1eae0c1eb124d45.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6c06dcb1e0311543a1eae0c1eb124d45.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2784
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6c06dcb1e0311543a1eae0c1eb124d45.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6c06dcb1e0311543a1eae0c1eb124d45.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3048

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\2662.A9C

Filesize
1KB

MD5
9647d861938fe56be4026961d87e2414

SHA1
458540c6a189403be91ddd753ed76d81577e7a96

SHA256
2377c47619dd5ff3b17cd9cfb7530df536504515728aa3f251bc27cc9e149c79

SHA512
6a035064ed3c24ee244e172f60ad2abaf6d0b60d5e477ea1062f60d9f6f3608607c1fd68d80b2021102a92218c23db879cf3385da5e0a73047286686d4c9e0bb

Download Submit
C:\Users\Admin\AppData\Roaming\2662.A9C

Filesize
600B

MD5
3e6b21a6d6a183140a6ffe90921de30e

SHA1
8394909cbd80ae067330eb33a25dc1536c5b57e4

SHA256
d272a2771ad9417b55301598af3bbc1c3a2b3512f1b890256ab03d7b866653b9

SHA512
e5709ffeb0d399b86121622bfb41f0eb6240440e9a27645943436233bc98206850977cdea1dc35b00025b82c3dd9e6c960a5de2f8ffd999ffd38263c861f7e62

Download Submit
C:\Users\Admin\AppData\Roaming\2662.A9C

Filesize
996B

MD5
f1b1f2a4106070bb63038dc4d0afbc5d

SHA1
1de8a3454583adaef8aa49000660baa6a489b995

SHA256
efad35231795ff8d3cefb57dcb908bec44cae770a22703927151e930587c66f5

SHA512
ec434b01716cb864bdb105b16799e2950da2dc8473f94381fe8fb65826b0268e26509cc6c4b94c7a6e8443a923f73ffa0dba8133bcd4f9e230a7e4e697ab3e1a

Download Submit
memory/2272-132-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2272-182-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2272-1-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2272-14-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2784-6-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2784-5-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2784-4-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/3048-76-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/3048-77-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/3048-75-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads