cycbot | ba40f29dca7b3fc768fc817d827c69a72073f90fcecf6c9633346f87a4567903

General

Target

dd017e7b0351d853bd8520ea9fb0f7b8_JaffaCakes118.exe
Size

167KB
MD5

dd017e7b0351d853bd8520ea9fb0f7b8
SHA1

05a9404e835949f47ff004a8c177324646c8cb98
SHA256

ba40f29dca7b3fc768fc817d827c69a72073f90fcecf6c9633346f87a4567903
SHA512

4f991f87ff1042f33ef51e50d0fe779b8b31ec218db85433d6416d1936938d9bb24a3799f27b8a9564020f48cb35e32c10e2ffd22c7ca09217d8e5a6c6aa9a00
SSDEEP

3072:5ndcmKmr9bSEfya28u5xSQPeuVvQIe88KJoYqk3evgQkO6zc7f39tHHtdaCzpkx:5dc1m1Sa8yQPeNHKJo3yQa8/aCzQ

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/1376-8-0x0000000000400000-0x0000000000441000-memory.dmp	family_cycbot
behavioral1/memory/1908-18-0x0000000000400000-0x0000000000441000-memory.dmp	family_cycbot
behavioral1/memory/2456-79-0x0000000000400000-0x0000000000441000-memory.dmp	family_cycbot
behavioral1/memory/1908-80-0x0000000000400000-0x0000000000441000-memory.dmp	family_cycbot
behavioral1/memory/1908-183-0x0000000000400000-0x0000000000441000-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"	dd017e7b0351d853bd8520ea9fb0f7b8_JaffaCakes118.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1908-2-0x0000000000400000-0x0000000000441000-memory.dmp	upx
behavioral1/memory/1376-7-0x0000000000400000-0x0000000000441000-memory.dmp	upx
behavioral1/memory/1376-8-0x0000000000400000-0x0000000000441000-memory.dmp	upx
behavioral1/memory/1908-18-0x0000000000400000-0x0000000000441000-memory.dmp	upx
behavioral1/memory/2456-78-0x0000000000400000-0x0000000000441000-memory.dmp	upx
behavioral1/memory/2456-79-0x0000000000400000-0x0000000000441000-memory.dmp	upx
behavioral1/memory/1908-80-0x0000000000400000-0x0000000000441000-memory.dmp	upx
behavioral1/memory/1908-183-0x0000000000400000-0x0000000000441000-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	dd017e7b0351d853bd8520ea9fb0f7b8_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dd017e7b0351d853bd8520ea9fb0f7b8_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dd017e7b0351d853bd8520ea9fb0f7b8_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1908 wrote to memory of 1376	1908	dd017e7b0351d853bd8520ea9fb0f7b8_JaffaCakes118.exe	30
PID 1908 wrote to memory of 1376	1908	dd017e7b0351d853bd8520ea9fb0f7b8_JaffaCakes118.exe	30
PID 1908 wrote to memory of 1376	1908	dd017e7b0351d853bd8520ea9fb0f7b8_JaffaCakes118.exe	30
PID 1908 wrote to memory of 1376	1908	dd017e7b0351d853bd8520ea9fb0f7b8_JaffaCakes118.exe	30
PID 1908 wrote to memory of 2456	1908	dd017e7b0351d853bd8520ea9fb0f7b8_JaffaCakes118.exe	33
PID 1908 wrote to memory of 2456	1908	dd017e7b0351d853bd8520ea9fb0f7b8_JaffaCakes118.exe	33
PID 1908 wrote to memory of 2456	1908	dd017e7b0351d853bd8520ea9fb0f7b8_JaffaCakes118.exe	33
PID 1908 wrote to memory of 2456	1908	dd017e7b0351d853bd8520ea9fb0f7b8_JaffaCakes118.exe	33

C:\Users\Admin\AppData\Local\Temp\dd017e7b0351d853bd8520ea9fb0f7b8_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\dd017e7b0351d853bd8520ea9fb0f7b8_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1908
- C:\Users\Admin\AppData\Local\Temp\dd017e7b0351d853bd8520ea9fb0f7b8_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\dd017e7b0351d853bd8520ea9fb0f7b8_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1376
- C:\Users\Admin\AppData\Local\Temp\dd017e7b0351d853bd8520ea9fb0f7b8_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\dd017e7b0351d853bd8520ea9fb0f7b8_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2456

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\9DEE.F28

Filesize
597B

MD5
c25102cc2418c5f39f3f585b10fed925

SHA1
699677f0f13568a548f9005f4979ebb5dc931be4

SHA256
c2f993ac92d6221846055842e2cfefed53d3c601c756a5c41f7015b5c9436cde

SHA512
9e25d9320c9e36a6771f1fba9972d4df23871d85e7f24edd8f1bebfc7f90920b391acfc7f5dacbf0fb873c79384f675eabb6849bd74cac21219ede5d03987f33

Download Submit
C:\Users\Admin\AppData\Roaming\9DEE.F28

Filesize
1KB

MD5
3ed5df95a87481e7d61d9c9ffd022b01

SHA1
3534b01c26a15fbf92394221b10f4843f288e259

SHA256
b587558a9c1133d172b6edd30170e255ef39ec6c5c33fcf015c40570a2c2866f

SHA512
62f7f9206c2ac93203a3d0eed7e247c8e65489027beba6b2ee5529fd80e7b52b434ba2484e43707692ce9bedfe7926c120fbb5c48cef6658abca7ae3c8b00c91

Download Submit
C:\Users\Admin\AppData\Roaming\9DEE.F28

Filesize
897B

MD5
21b2715cd09b8c7368f81001f85d1f7a

SHA1
ea60e73c99be2ddee3eeb11d38003708cd47364c

SHA256
ab66e822040bba06fead77cbe754914a2dbd2f7c32eb488457719b8967c445eb

SHA512
2162684f1d961c73a81d9d0df94562b9a2d72d88f14228bc8eb78cc2de5472966e0dbe3aee552a597adb725b2fc334941c5c78c407eac8b162ae6cb30f97d6b7

Download Submit
C:\Users\Admin\AppData\Roaming\9DEE.F28

Filesize
1KB

MD5
8d92f5f750c22842ef8b9461cfd69d2b

SHA1
22871a725710dfb17bda9fb0adc9248f9b96747a

SHA256
6669521a8abda14b88b3aee97680929b2dfc71fd81d83580181e71fda4923412

SHA512
1d07bef325104b925e1bbc818ec05ebef7dbc3868930194cea8c5866937c516e81f389a298a480fcd1fb2795573f4f4212750b1a02ab014ca6bb896e84419881

Download Submit
memory/1376-7-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/1376-6-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/1376-8-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/1908-18-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/1908-80-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/1908-2-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/1908-1-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/1908-183-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/2456-78-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/2456-79-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads