cycbot | 62455f10de471dca4af8030087be6d907cbd9ab18df10220b8d6e8c9d704f9ab

General

Target

JaffaCakes118_da2a7591c2ab63824ba7b2a6b10b2ec6.exe
Size

172KB
MD5

da2a7591c2ab63824ba7b2a6b10b2ec6
SHA1

c48548dea489b58a36ab4c5407c0e8ae7db83712
SHA256

62455f10de471dca4af8030087be6d907cbd9ab18df10220b8d6e8c9d704f9ab
SHA512

19f00ce748e70c4488b831e0890fce6b73feedd471a7ac12cddd2f14841fea39f8c5c33d4654082a95f30f6d2539621040dbb8a3fc59da42e7bdd791925de622
SSDEEP

3072:rLk1jLqYrQ++HpaLFybousu1MqR8/0z6Q3YEojgFkf3Rb201GRSK:kFRwOyb913y/0pYEojgKPN0RSK

Score

10^/10

cycbot backdoor discovery 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 4 IoCs

Cycbot is a backdoor and trojan written in C++.

resource	yara_rule
behavioral1/memory/1628-14-0x0000000000400000-0x000000000046C000-memory.dmp	family_cycbot
behavioral1/memory/2400-15-0x0000000000400000-0x000000000046C000-memory.dmp	family_cycbot
behavioral1/memory/2292-88-0x0000000000400000-0x000000000046C000-memory.dmp	family_cycbot
behavioral1/memory/2400-191-0x0000000000400000-0x000000000046C000-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

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2400-2-0x0000000000400000-0x000000000046C000-memory.dmp	upx
behavioral1/memory/1628-12-0x0000000000400000-0x000000000046C000-memory.dmp	upx
behavioral1/memory/1628-14-0x0000000000400000-0x000000000046C000-memory.dmp	upx
behavioral1/memory/2400-15-0x0000000000400000-0x000000000046C000-memory.dmp	upx
behavioral1/memory/1628-83-0x0000000000400000-0x000000000046C000-memory.dmp	upx
behavioral1/memory/2292-87-0x0000000000400000-0x000000000046C000-memory.dmp	upx
behavioral1/memory/2292-88-0x0000000000400000-0x000000000046C000-memory.dmp	upx
behavioral1/memory/2400-191-0x0000000000400000-0x000000000046C000-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_da2a7591c2ab63824ba7b2a6b10b2ec6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_da2a7591c2ab63824ba7b2a6b10b2ec6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_da2a7591c2ab63824ba7b2a6b10b2ec6.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2400 wrote to memory of 1628	2400	JaffaCakes118_da2a7591c2ab63824ba7b2a6b10b2ec6.exe	30
PID 2400 wrote to memory of 1628	2400	JaffaCakes118_da2a7591c2ab63824ba7b2a6b10b2ec6.exe	30
PID 2400 wrote to memory of 1628	2400	JaffaCakes118_da2a7591c2ab63824ba7b2a6b10b2ec6.exe	30
PID 2400 wrote to memory of 1628	2400	JaffaCakes118_da2a7591c2ab63824ba7b2a6b10b2ec6.exe	30
PID 2400 wrote to memory of 2292	2400	JaffaCakes118_da2a7591c2ab63824ba7b2a6b10b2ec6.exe	32
PID 2400 wrote to memory of 2292	2400	JaffaCakes118_da2a7591c2ab63824ba7b2a6b10b2ec6.exe	32
PID 2400 wrote to memory of 2292	2400	JaffaCakes118_da2a7591c2ab63824ba7b2a6b10b2ec6.exe	32
PID 2400 wrote to memory of 2292	2400	JaffaCakes118_da2a7591c2ab63824ba7b2a6b10b2ec6.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_da2a7591c2ab63824ba7b2a6b10b2ec6.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_da2a7591c2ab63824ba7b2a6b10b2ec6.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2400
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_da2a7591c2ab63824ba7b2a6b10b2ec6.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_da2a7591c2ab63824ba7b2a6b10b2ec6.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1628
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_da2a7591c2ab63824ba7b2a6b10b2ec6.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_da2a7591c2ab63824ba7b2a6b10b2ec6.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2292

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\49FA.E05

Filesize
600B

MD5
6bf43fa0670dfa9686cb78e1798018a4

SHA1
c319bfc8e9812c32642c60015b126c23075adb24

SHA256
59e7beb737f573863268d6087f41a435081199a8e1061a9235ab748ce65bb494

SHA512
0b32381100cd4d894fd8afe14505e81d3b41521148300e027c0311c5b48acd1f81f957f04131592c23fc3e7fb2e117130571ed25ae09c48651b5618d7e7242f4

Download Submit
C:\Users\Admin\AppData\Roaming\49FA.E05

Filesize
996B

MD5
b952be4ffdaf8d50e1f9eb03fd56e99e

SHA1
5a89e7c5b6e7efbf20a438aa90d5883995e6b6f6

SHA256
753c6e5c1fa8a86b1f034a75b6c8b93880d684d66d51eb7416a9276f74076d26

SHA512
2afd253c5c2ab8012d49938d412cd25872beb5b33efec1a51ac9ae45dad3e25b3b0aaa36e45e4dff10de506c0df2ec7159c7b33a7334d07b7df4adc7f5fce9dc

Download Submit
memory/1628-12-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/1628-14-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/1628-83-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/2292-85-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/2292-87-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/2292-88-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/2400-1-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/2400-2-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/2400-15-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/2400-191-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download

Analysis

Sharing