cycbot | bb9811feb00951487e21b7caabf27f7cd8d026e971fde0942ea72b7e1562bc8d

General

Target

f10e5a428dda0f082bb2b3adc4a07208_JaffaCakes118.exe
Size

161KB
MD5

f10e5a428dda0f082bb2b3adc4a07208
SHA1

c52639292b063bf1339f924f8599a94fc05eeaef
SHA256

bb9811feb00951487e21b7caabf27f7cd8d026e971fde0942ea72b7e1562bc8d
SHA512

9b62890fca0431986a15094dede4683cfef8536c41e6b98ee2983706e02fcbd6bd486c3026ff58308956018b6ecd89fcd5efddc36ffcc69f047a6ecbff6dde22
SSDEEP

3072:bWx0uu4MvbBJ8sjoTiYeB+r9Vh0XQsjGryKOPsZd9ssWQX0d:CxlujvD8NTipB+rCgs2Oq9ss7X0

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/2716-7-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2720-15-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/1248-79-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2720-138-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2720-182-0x0000000000400000-0x0000000000442000-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"	f10e5a428dda0f082bb2b3adc4a07208_JaffaCakes118.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2720-2-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2716-5-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2716-7-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2720-15-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1248-78-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1248-79-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2720-138-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2720-182-0x0000000000400000-0x0000000000442000-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	f10e5a428dda0f082bb2b3adc4a07208_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f10e5a428dda0f082bb2b3adc4a07208_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f10e5a428dda0f082bb2b3adc4a07208_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2720 wrote to memory of 2716	2720	f10e5a428dda0f082bb2b3adc4a07208_JaffaCakes118.exe	30
PID 2720 wrote to memory of 2716	2720	f10e5a428dda0f082bb2b3adc4a07208_JaffaCakes118.exe	30
PID 2720 wrote to memory of 2716	2720	f10e5a428dda0f082bb2b3adc4a07208_JaffaCakes118.exe	30
PID 2720 wrote to memory of 2716	2720	f10e5a428dda0f082bb2b3adc4a07208_JaffaCakes118.exe	30
PID 2720 wrote to memory of 1248	2720	f10e5a428dda0f082bb2b3adc4a07208_JaffaCakes118.exe	32
PID 2720 wrote to memory of 1248	2720	f10e5a428dda0f082bb2b3adc4a07208_JaffaCakes118.exe	32
PID 2720 wrote to memory of 1248	2720	f10e5a428dda0f082bb2b3adc4a07208_JaffaCakes118.exe	32
PID 2720 wrote to memory of 1248	2720	f10e5a428dda0f082bb2b3adc4a07208_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\f10e5a428dda0f082bb2b3adc4a07208_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f10e5a428dda0f082bb2b3adc4a07208_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2720
- C:\Users\Admin\AppData\Local\Temp\f10e5a428dda0f082bb2b3adc4a07208_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f10e5a428dda0f082bb2b3adc4a07208_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2716
- C:\Users\Admin\AppData\Local\Temp\f10e5a428dda0f082bb2b3adc4a07208_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f10e5a428dda0f082bb2b3adc4a07208_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1248

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\ABC6.121

Filesize
1KB

MD5
ccaa0c418943c069afccf007b6685af0

SHA1
120b5271117fce4bdbada45e751c6eb52229fb79

SHA256
c5739d6e3dfbc303a9d3b6c3b002d9f045b858b9ffbadf6695d5987444066bf6

SHA512
4f6b5f3019e94c210758ae83a9e07fc35dc3dd4a7c1fd6f5e57990bd250e5fe312441c2b37d76851d02adefb5673d00010a21bf08b0f43d21f91732c00e7d028

Download Submit
C:\Users\Admin\AppData\Roaming\ABC6.121

Filesize
600B

MD5
8f29701ce89e7bfea9fd23085f9bc372

SHA1
b44c3688d72897897b2def708afe0f7d563f5cbc

SHA256
dc49fe72f3bfae0cd610f21f99a682154aab506ac821078a78274908f5554504

SHA512
dbf00da3a73bd8356c930de71c5bfb54b8de577337027a3416a20c6407fab1bbc71c548fc4d4fc9fefacf4b58e3e65afad90bd9038f8fa541f3de9f564387de8

Download Submit
C:\Users\Admin\AppData\Roaming\ABC6.121

Filesize
996B

MD5
2346aeacdb59574127a386ab27ea4454

SHA1
416064fc6274e48450aa7c2a23d85573f41dee4f

SHA256
97255e947f0303f46669fa44971bb94d85f00ae6c060cf0ead1a0618cfc7b902

SHA512
a1048b34846be6a6e405291be05aa842dd721db104f348bcec7fe2d8570d598f25f663f112f7954d53d470a1edde3e9321e8a8aff10ba0075a975d5bbf3ba686

Download Submit
memory/1248-78-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1248-79-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2716-5-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2716-7-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2720-2-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2720-1-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2720-15-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2720-138-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2720-182-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads