cycbot | 4d36bdcce13c87c8f6a4315cde9a69e621155f8fb32a65413f793a9faf868572

General

Target

JaffaCakes118_c3798a3caf9ef33e4f58cf8a6a588880.exe
Size

175KB
MD5

c3798a3caf9ef33e4f58cf8a6a588880
SHA1

4b4db34ec828543ef96feeabbb888a085e492971
SHA256

4d36bdcce13c87c8f6a4315cde9a69e621155f8fb32a65413f793a9faf868572
SHA512

55efbee851752d401960075713027a5c8d9e5586aff1b07b712d83450c2f506284b0252bb89f648c1252a573a7b9ddaec8d709ff89ef893bd7de776c5f506e40
SSDEEP

3072:KeF7Dpd7BzkiXI+wl9N/iqAx9xbWl/3u88Zw8WUL65+V3ZsXng:KeFnpXzkCwbZ/3P8RLWe3uXn

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 6 IoCs

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

resource	yara_rule
behavioral1/memory/2416-13-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2416-14-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2324-15-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2324-76-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2840-80-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2324-191-0x0000000000400000-0x0000000000445000-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"	JaffaCakes118_c3798a3caf9ef33e4f58cf8a6a588880.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2324-2-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2416-13-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2416-14-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2324-15-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2324-76-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2840-80-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2840-79-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2324-191-0x0000000000400000-0x0000000000445000-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_c3798a3caf9ef33e4f58cf8a6a588880.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_c3798a3caf9ef33e4f58cf8a6a588880.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_c3798a3caf9ef33e4f58cf8a6a588880.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2324 wrote to memory of 2416	2324	JaffaCakes118_c3798a3caf9ef33e4f58cf8a6a588880.exe	31
PID 2324 wrote to memory of 2416	2324	JaffaCakes118_c3798a3caf9ef33e4f58cf8a6a588880.exe	31
PID 2324 wrote to memory of 2416	2324	JaffaCakes118_c3798a3caf9ef33e4f58cf8a6a588880.exe	31
PID 2324 wrote to memory of 2416	2324	JaffaCakes118_c3798a3caf9ef33e4f58cf8a6a588880.exe	31
PID 2324 wrote to memory of 2840	2324	JaffaCakes118_c3798a3caf9ef33e4f58cf8a6a588880.exe	33
PID 2324 wrote to memory of 2840	2324	JaffaCakes118_c3798a3caf9ef33e4f58cf8a6a588880.exe	33
PID 2324 wrote to memory of 2840	2324	JaffaCakes118_c3798a3caf9ef33e4f58cf8a6a588880.exe	33
PID 2324 wrote to memory of 2840	2324	JaffaCakes118_c3798a3caf9ef33e4f58cf8a6a588880.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c3798a3caf9ef33e4f58cf8a6a588880.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c3798a3caf9ef33e4f58cf8a6a588880.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2324
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c3798a3caf9ef33e4f58cf8a6a588880.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c3798a3caf9ef33e4f58cf8a6a588880.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2416
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c3798a3caf9ef33e4f58cf8a6a588880.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c3798a3caf9ef33e4f58cf8a6a588880.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2840

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\15FD.835

Filesize
1KB

MD5
6de24108ca1f1ad3ce2281f6100fae57

SHA1
62fb8768455aaf545448e52b0f51232c17ced6c9

SHA256
87dea97fd5df60a9607313bfc6db0fe5536d591cd907bcdef8d41324a59a3014

SHA512
9ceb3a555310636fef1f4697a15eda0d5872b4d7a416dffa6a5d1bc94c7810b9ae0d0acb02c4ae917906071f7094bc990e1d7186ff405a2e1655347b8de1e410

Download Submit
C:\Users\Admin\AppData\Roaming\15FD.835

Filesize
600B

MD5
cbce3acafe4e17bb75230b40d18e07af

SHA1
c6e481c624c5bfb1878e1479281625797e5d7ac3

SHA256
96bb9ae7bd31896c6d6a285af7c45b2da8c3eb6d808f87a6bd6ec6e933c929a9

SHA512
e07c46b17f339983cac4347feb8950e6b124c7bae0544bbf1465424ca65d3f32f880053542da59d6c83641eaf37129fdf65077d7de6674eca821773347a84bb0

Download Submit
C:\Users\Admin\AppData\Roaming\15FD.835

Filesize
996B

MD5
34029ac2d98809d77257397b5ce45a10

SHA1
bf2892619441a5f1da88b5d3a8c8f9ceb8e7d49f

SHA256
f380d955b66fb00e77d11be70e98d6fa33550505c3a56a38f30866e53d2fb201

SHA512
676c8df235b8c76c14a60a3cc430959b22f83ad752ffb619935e86f99e35bda625572f4993795d312abf81624dcc65b5f1036afaa1994c434290e2710ea40b9d

Download Submit
memory/2324-1-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2324-2-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2324-15-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2324-76-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2324-191-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2416-13-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2416-14-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2840-80-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2840-79-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads