cycbot | d4ffa4ed5ef1cf7cc9dd93fd593ca22a09067660b3ec8c9e6b4d9d47317d3168

General

Target

JaffaCakes118_5b3ec8fc824850800a87d11401c3685e.exe
Size

187KB
MD5

5b3ec8fc824850800a87d11401c3685e
SHA1

1d7f9754535b6ec8ad6e6d63a2ec39652f1b7038
SHA256

d4ffa4ed5ef1cf7cc9dd93fd593ca22a09067660b3ec8c9e6b4d9d47317d3168
SHA512

c8e97eb196a203af3e2b4919a7cfa18bf2ae6a530b3b27e5b3d156347693d1a9434d452da8db8ae6e8a849096e5166c965e4e82d85d90281cd1d36423ecb1b76
SSDEEP

3072:4HgmCIXvUe+hYrjR5c9RvNuGAAaXhBGVc1SeaHttzrQOyIZM/E:4pxXShYrty/FucaSVcglHtNPyQM

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 5 IoCs

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

resource	yara_rule
behavioral1/memory/2808-9-0x0000000000400000-0x0000000000455000-memory.dmp	family_cycbot
behavioral1/memory/1700-14-0x0000000000400000-0x0000000000452000-memory.dmp	family_cycbot
behavioral1/memory/1700-15-0x0000000000400000-0x0000000000455000-memory.dmp	family_cycbot
behavioral1/memory/928-73-0x0000000000400000-0x0000000000455000-memory.dmp	family_cycbot
behavioral1/memory/1700-164-0x0000000000400000-0x0000000000455000-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/1700-2-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/2808-7-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/2808-9-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/1700-14-0x0000000000400000-0x0000000000452000-memory.dmp	upx
behavioral1/memory/1700-15-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/928-73-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/1700-164-0x0000000000400000-0x0000000000455000-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_5b3ec8fc824850800a87d11401c3685e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_5b3ec8fc824850800a87d11401c3685e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_5b3ec8fc824850800a87d11401c3685e.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1700 wrote to memory of 2808	1700	JaffaCakes118_5b3ec8fc824850800a87d11401c3685e.exe	30
PID 1700 wrote to memory of 2808	1700	JaffaCakes118_5b3ec8fc824850800a87d11401c3685e.exe	30
PID 1700 wrote to memory of 2808	1700	JaffaCakes118_5b3ec8fc824850800a87d11401c3685e.exe	30
PID 1700 wrote to memory of 2808	1700	JaffaCakes118_5b3ec8fc824850800a87d11401c3685e.exe	30
PID 1700 wrote to memory of 928	1700	JaffaCakes118_5b3ec8fc824850800a87d11401c3685e.exe	32
PID 1700 wrote to memory of 928	1700	JaffaCakes118_5b3ec8fc824850800a87d11401c3685e.exe	32
PID 1700 wrote to memory of 928	1700	JaffaCakes118_5b3ec8fc824850800a87d11401c3685e.exe	32
PID 1700 wrote to memory of 928	1700	JaffaCakes118_5b3ec8fc824850800a87d11401c3685e.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5b3ec8fc824850800a87d11401c3685e.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5b3ec8fc824850800a87d11401c3685e.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1700
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5b3ec8fc824850800a87d11401c3685e.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5b3ec8fc824850800a87d11401c3685e.exe startC:\Program Files (x86)\LP\D3A7\117.exe%C:\Program Files (x86)\LP\D3A7
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2808
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5b3ec8fc824850800a87d11401c3685e.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5b3ec8fc824850800a87d11401c3685e.exe startC:\Users\Admin\AppData\Roaming\7F7BC\3AED3.exe%C:\Users\Admin\AppData\Roaming\7F7BC
  2⤵
  - System Location Discovery: System Language Discovery
  PID:928

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\7F7BC\CDE6.F7B

Filesize
1KB

MD5
b24f9a9b0c07de6b88259b0c1b3c0031

SHA1
7c1a4513c927e89e7b7a822e8e367fd3e7f92670

SHA256
74a8116342ecceee65e16c46f8d08c60280880d4a58b38875992ba965ca8c4df

SHA512
495c8d6fdfa7906808492b50ba69237dd42318a743dfc891acdcb2407c129a2b29f3b3db173d6912b2e71cb1037c415ec074994164458666b97595d8535df6ff

Download Submit
C:\Users\Admin\AppData\Roaming\7F7BC\CDE6.F7B

Filesize
600B

MD5
30abede7e4c067b85dbb08ab5b5c4169

SHA1
a0a2238cfaa31b0359fdea203732bcbb6731343f

SHA256
f87efe6096d961048797102a3a9069876ef590f07c41d2ba04bd2c7b9b5c8f21

SHA512
219df613a8922ff72961d263c3e793271b4e663731bf67e2d0872e2d336a05a53198249b11dab378f0d5fbf63858e2be1b109959be226dae179007966b76eeed

Download Submit
C:\Users\Admin\AppData\Roaming\7F7BC\CDE6.F7B

Filesize
996B

MD5
066d4f2058a947dad2de53bd3b216309

SHA1
d84337d086c22fe4d2a3e1ed32a6a1369eb63729

SHA256
b20dd2eb34552de6232afebda24169d9d86607b343dae721c41093c560c7088a

SHA512
4283fb73e0d8a52f412056c091e4a1393853f0009c3a505b205af4c842b07499aa7dbe1ca7bed033ec7791addee16d793251e3310db7073589671a0f3dc01b69

Download Submit
memory/928-72-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/928-73-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1700-1-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1700-2-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1700-14-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1700-15-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1700-164-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2808-7-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2808-9-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download

Analysis

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