cycbot | 18b8b770461734681869971080662175b78e19a7d888dddcc363536960ef9632

General

Target

JaffaCakes118_a3a36fec487f44d087bb90f3eb052b6c.exe
Size

198KB
MD5

a3a36fec487f44d087bb90f3eb052b6c
SHA1

5387df31b2a60d172fd38b198bc3deeef4f59200
SHA256

18b8b770461734681869971080662175b78e19a7d888dddcc363536960ef9632
SHA512

0b42db3e558cf371161a32454bec0d7a5622543c74d7874fb7c3ae1b5d3a32ca8fddcd9fe3f7c4b2fbb49b01614b9e8fd8af72a4b76b6ca8378867f6e68c8003
SSDEEP

3072:RjcQPoihTA7yirtDRuxErDP1QeaR+GYp2whoD2cRRkxbx1B9EjwB:RjcQPF7uduerL14UGA2whoD2gK+

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/2216-13-0x0000000000400000-0x0000000000455000-memory.dmp	family_cycbot
behavioral1/memory/1916-14-0x0000000000400000-0x0000000000455000-memory.dmp	family_cycbot
behavioral1/memory/1748-85-0x0000000000400000-0x0000000000455000-memory.dmp	family_cycbot
behavioral1/memory/1916-188-0x0000000000400000-0x0000000000455000-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 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1916-2-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/2216-12-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/2216-13-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/1916-14-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/1748-83-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/1748-85-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/1916-188-0x0000000000400000-0x0000000000455000-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_a3a36fec487f44d087bb90f3eb052b6c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_a3a36fec487f44d087bb90f3eb052b6c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_a3a36fec487f44d087bb90f3eb052b6c.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1916 wrote to memory of 2216	1916	JaffaCakes118_a3a36fec487f44d087bb90f3eb052b6c.exe	31
PID 1916 wrote to memory of 2216	1916	JaffaCakes118_a3a36fec487f44d087bb90f3eb052b6c.exe	31
PID 1916 wrote to memory of 2216	1916	JaffaCakes118_a3a36fec487f44d087bb90f3eb052b6c.exe	31
PID 1916 wrote to memory of 2216	1916	JaffaCakes118_a3a36fec487f44d087bb90f3eb052b6c.exe	31
PID 1916 wrote to memory of 1748	1916	JaffaCakes118_a3a36fec487f44d087bb90f3eb052b6c.exe	33
PID 1916 wrote to memory of 1748	1916	JaffaCakes118_a3a36fec487f44d087bb90f3eb052b6c.exe	33
PID 1916 wrote to memory of 1748	1916	JaffaCakes118_a3a36fec487f44d087bb90f3eb052b6c.exe	33
PID 1916 wrote to memory of 1748	1916	JaffaCakes118_a3a36fec487f44d087bb90f3eb052b6c.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a3a36fec487f44d087bb90f3eb052b6c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a3a36fec487f44d087bb90f3eb052b6c.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1916
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a3a36fec487f44d087bb90f3eb052b6c.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a3a36fec487f44d087bb90f3eb052b6c.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2216
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a3a36fec487f44d087bb90f3eb052b6c.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a3a36fec487f44d087bb90f3eb052b6c.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1748

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

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Downloads

C:\Users\Admin\AppData\Roaming\1B3A.A71

Filesize
1KB

MD5
7976ba13d7c3934612a2160d10474061

SHA1
7b3a5f7806290b59671bca488e0fd3c4c27fb7ce

SHA256
cefe3c4d767a59cca4f05dc64b874f6110678f22930dd8f969b716176737e964

SHA512
19a987fe8223ff822dc175772d18b0f35735d1f389fa41f4e02c247b8eb033eda8923ba581b95f305fb535f7f13e8c4ad915c10625a73dfa97f711d2ee0b0d15

Download Submit
C:\Users\Admin\AppData\Roaming\1B3A.A71

Filesize
600B

MD5
ca0ae6e3091cc00ef48f70f9758802a7

SHA1
c6a40c3ed3b1df1445d5a5c1ef7a4c7a0b416a9e

SHA256
ec3d963e625e10dfd7560f904099c4dbf08d1d26bd1b1ed15a1b6de8ed3673eb

SHA512
5619b88f94aa29b1bb38b6c180963d14532aa93fb0f193f46fa6cd1bd7cd5238b26efc6580171614e31e3ffe01f08690ae8000034e7fedae19aa5386c4e347c1

Download Submit
C:\Users\Admin\AppData\Roaming\1B3A.A71

Filesize
996B

MD5
2a0afda87ee763b4b19fbd99a3d7e206

SHA1
3427a6e73d40e9652fe7f53529df899c04716d53

SHA256
34e291dda3f40fc81b81e20702af4f7702582eeeb409a109f83aecd0abb505f9

SHA512
ed40e353f775f3eb8d9168706a1ee96099e00c3330ead29245b251ac886c40ff9609e2401ddd5365759c9b23c3b5ff9b58856a997acb78a66d2b624fe17aaf20

Download Submit
memory/1748-83-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1748-85-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1916-1-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1916-2-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1916-14-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1916-188-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2216-12-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2216-13-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download

Analysis

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