cycbot | 9592321c69d2a5ca94e13795242f4362b1123d0081b906c0f3ddcc80985d3c4f

General

Target

f0ba0294512bd9fc5238ab8526b15981_JaffaCakes118.exe
Size

162KB
MD5

f0ba0294512bd9fc5238ab8526b15981
SHA1

1e1ab95baca90376e874215c32b12690a897ac67
SHA256

9592321c69d2a5ca94e13795242f4362b1123d0081b906c0f3ddcc80985d3c4f
SHA512

fd62a0ce7175c77c4fbd4d53facc72ec01084d0c056ccdaa700b91c41cc0874d3c23524d30b550a70cf658a9e98a75c49c79c375efbd6298eda6755ec5052059
SSDEEP

3072:8/zfGU6FegH8rFAQ/3TkeyaRF/R7suYCoXZ0ryUrYhaqiVfkJ:8/DGUgegH8rf5LnYCg+X

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/2452-10-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot
behavioral1/memory/2336-15-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot
behavioral1/memory/1448-76-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot
behavioral1/memory/2336-139-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot
behavioral1/memory/2336-187-0x0000000000400000-0x0000000000444000-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"	f0ba0294512bd9fc5238ab8526b15981_JaffaCakes118.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2336-2-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral1/memory/2336-1-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral1/memory/2452-10-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral1/memory/2452-8-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral1/memory/2336-15-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral1/memory/1448-75-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral1/memory/1448-76-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral1/memory/2336-139-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral1/memory/2336-187-0x0000000000400000-0x0000000000444000-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	f0ba0294512bd9fc5238ab8526b15981_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f0ba0294512bd9fc5238ab8526b15981_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f0ba0294512bd9fc5238ab8526b15981_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2336 wrote to memory of 2452	2336	f0ba0294512bd9fc5238ab8526b15981_JaffaCakes118.exe	30
PID 2336 wrote to memory of 2452	2336	f0ba0294512bd9fc5238ab8526b15981_JaffaCakes118.exe	30
PID 2336 wrote to memory of 2452	2336	f0ba0294512bd9fc5238ab8526b15981_JaffaCakes118.exe	30
PID 2336 wrote to memory of 2452	2336	f0ba0294512bd9fc5238ab8526b15981_JaffaCakes118.exe	30
PID 2336 wrote to memory of 1448	2336	f0ba0294512bd9fc5238ab8526b15981_JaffaCakes118.exe	32
PID 2336 wrote to memory of 1448	2336	f0ba0294512bd9fc5238ab8526b15981_JaffaCakes118.exe	32
PID 2336 wrote to memory of 1448	2336	f0ba0294512bd9fc5238ab8526b15981_JaffaCakes118.exe	32
PID 2336 wrote to memory of 1448	2336	f0ba0294512bd9fc5238ab8526b15981_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\f0ba0294512bd9fc5238ab8526b15981_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f0ba0294512bd9fc5238ab8526b15981_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2336
- C:\Users\Admin\AppData\Local\Temp\f0ba0294512bd9fc5238ab8526b15981_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f0ba0294512bd9fc5238ab8526b15981_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2452
- C:\Users\Admin\AppData\Local\Temp\f0ba0294512bd9fc5238ab8526b15981_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f0ba0294512bd9fc5238ab8526b15981_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1448

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\D298.3E9

Filesize
1KB

MD5
a8b48e40ed460da2178922c4e97208e3

SHA1
23e52a3f55cec002aa7aca3099b962eb8b708822

SHA256
740d7412f2445b21cbca67f18c709acae8e4df710bd0101475c551d6008c5012

SHA512
70149fa6c203268f9027e9a0c6e6fe107e4dc25046ba2deafe55b708321f4afe78a531e51f76b42cc2a88ef833d6cc2261c8c8ff3375cda1b8d5462fc454ef0b

Download Submit
C:\Users\Admin\AppData\Roaming\D298.3E9

Filesize
600B

MD5
0224adcc95c199e6cb4a733cab56c544

SHA1
c1f636ef51e98f788377c997b55e26112612e0a2

SHA256
d560a77063b4d98fc53f9dc0ca47e2fe1b54194113f261748048e1f39cdc2b0e

SHA512
41af3fc251068529131efb86b0ecf67d6d9f77e33e2db1dc8cac02fc95db93d4cb7b6d8e84c03fe512475f4c67b0cb589e7ea7cf091cfae100891c7e62f951be

Download Submit
C:\Users\Admin\AppData\Roaming\D298.3E9

Filesize
996B

MD5
28b280edbf044ca4be069cdcf478a903

SHA1
062607bc5bb0b4dbf9f94213f8cc332b46473e37

SHA256
59615a5f5c8a300fb1d84ac284e6f3ca551633220050157eb361dd0706fa50b4

SHA512
60eaa254437055e514d4c326f92a7567c748e3076820bb0f6fdca8649e408bf707facf1fd572169d3ee958e2c4f451897ee5dbb63e8ce69cd5fd9be6592dc3ec

Download Submit
memory/1448-76-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/1448-75-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/1448-74-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2336-15-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2336-2-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2336-139-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2336-1-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2336-187-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2452-8-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2452-10-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads