cycbot | 635304027bba81fefde1459aa3a75dcb69755f0e5105c3c2c1d35229e7bdb9a7

General

Target

JaffaCakes118_ce1c8ed3d8a4f75de2a1d1c84578b3de.exe
Size

160KB
MD5

ce1c8ed3d8a4f75de2a1d1c84578b3de
SHA1

a6e3cc255006eeb7c3f19f3c043fde52e977e8e0
SHA256

635304027bba81fefde1459aa3a75dcb69755f0e5105c3c2c1d35229e7bdb9a7
SHA512

986a7be71d3a0420d0ed84331493be6dd18f09761e298c85afc6b6d3a820e9530bfc1c68a8a9b8d51a7611e68e02e3a71b2c1d24590f7aaf0c70a362d5c1b2f5
SSDEEP

3072:W1olO0YQ+wsr2CD1bvymnpvjIxaL4Vp4gvgXh/1Anwxlk+nV:W1j0D+wsrl1zlpBL4jzc/OO7

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/2800-7-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2144-15-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2144-80-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2376-82-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2144-154-0x0000000000400000-0x0000000000442000-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"	JaffaCakes118_ce1c8ed3d8a4f75de2a1d1c84578b3de.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2144-2-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2800-6-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2800-7-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2144-15-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2144-80-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2376-82-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2144-154-0x0000000000400000-0x0000000000442000-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	JaffaCakes118_ce1c8ed3d8a4f75de2a1d1c84578b3de.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_ce1c8ed3d8a4f75de2a1d1c84578b3de.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_ce1c8ed3d8a4f75de2a1d1c84578b3de.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2144 wrote to memory of 2800	2144	JaffaCakes118_ce1c8ed3d8a4f75de2a1d1c84578b3de.exe	30
PID 2144 wrote to memory of 2800	2144	JaffaCakes118_ce1c8ed3d8a4f75de2a1d1c84578b3de.exe	30
PID 2144 wrote to memory of 2800	2144	JaffaCakes118_ce1c8ed3d8a4f75de2a1d1c84578b3de.exe	30
PID 2144 wrote to memory of 2800	2144	JaffaCakes118_ce1c8ed3d8a4f75de2a1d1c84578b3de.exe	30
PID 2144 wrote to memory of 2376	2144	JaffaCakes118_ce1c8ed3d8a4f75de2a1d1c84578b3de.exe	32
PID 2144 wrote to memory of 2376	2144	JaffaCakes118_ce1c8ed3d8a4f75de2a1d1c84578b3de.exe	32
PID 2144 wrote to memory of 2376	2144	JaffaCakes118_ce1c8ed3d8a4f75de2a1d1c84578b3de.exe	32
PID 2144 wrote to memory of 2376	2144	JaffaCakes118_ce1c8ed3d8a4f75de2a1d1c84578b3de.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ce1c8ed3d8a4f75de2a1d1c84578b3de.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ce1c8ed3d8a4f75de2a1d1c84578b3de.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2144
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ce1c8ed3d8a4f75de2a1d1c84578b3de.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ce1c8ed3d8a4f75de2a1d1c84578b3de.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2800
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ce1c8ed3d8a4f75de2a1d1c84578b3de.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ce1c8ed3d8a4f75de2a1d1c84578b3de.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2376

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\25F1.731

Filesize
1KB

MD5
38ade108a21da4d293c714f99e06c06b

SHA1
258afe886c47a89d60cf71c05c3deb06629519de

SHA256
affa9f38b6cdd6fd137f764ba46dc43cd9aa237740d8df8df9117b0f6cfa7682

SHA512
73dfbd9a6603f045629d29327c82d5dfdb0c14e2996b8f7d915af39eb1f3e7e053548500a0be5eb42b60859a8ab22c622e8ce82e386f8bbc50a92a769c346db3

Download Submit
C:\Users\Admin\AppData\Roaming\25F1.731

Filesize
600B

MD5
f2fd4439a91bc847865ad3f15126a5aa

SHA1
baf8bba5954c0d0ef43c102dde54180c3fab31c8

SHA256
51f47e731f6541c9d84171c798a3d28eff8f7f4fb48d59c07c09d5ce5b65a321

SHA512
19509f66be937339a19dec7ff1ac01ec4c38e0d76c83fe538b581378c122ae9464033d5fa3e672629c76e48a9840c791954424a032347dcba448505a6f85192a

Download Submit
C:\Users\Admin\AppData\Roaming\25F1.731

Filesize
996B

MD5
b6d123f057844aaa1e256cdfe1b8aea4

SHA1
83816575ef7f50063f1c1aae94275334913ea73e

SHA256
9ab2d102b162306fe26d8518413974ae5703f0901c1d4480b769a0213d146fe2

SHA512
562b37ff517cce23d5fe69dbfa414925ffc5cebe156a5ebfe57948e3dc2f3471bfeb4f9a786ca5b92d9cd562fbabad4fe869947f019d267ad4fb8c4be91d4d5c

Download Submit
memory/2144-1-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2144-2-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2144-15-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2144-80-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2144-154-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2376-82-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2800-6-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2800-5-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2800-7-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads