cycbot | 5b2b1cf0f44959bbd039f3950aa7adb6ad16dd998c002ee390d9ddb7494258de

General

Target

d5a6229468e02e5865792c268913765d_JaffaCakes118.exe
Size

187KB
MD5

d5a6229468e02e5865792c268913765d
SHA1

daa3ca08573cdd5fba5c15fcc1f68ad45631289a
SHA256

5b2b1cf0f44959bbd039f3950aa7adb6ad16dd998c002ee390d9ddb7494258de
SHA512

9c4393de82d0ff95a935c98142688119e277183e00f3dfd68214f0e394a2436feae22afbf7f651ed878b03fb27832f77ea08fa65d088718123b372002f35b519
SSDEEP

3072:umpgG33H1u5F79GNgPrnw+fg+UbH8eIA6EfI73VrarwObkeLpp+RuDN4o:mwHobkCbw+fAmdzLparwWLpgSGo

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/2732-6-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2668-14-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2984-80-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2668-81-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2668-185-0x0000000000400000-0x0000000000445000-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"	d5a6229468e02e5865792c268913765d_JaffaCakes118.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2668-2-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2732-5-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2732-6-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2668-14-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2984-80-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2668-81-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2668-185-0x0000000000400000-0x0000000000445000-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	d5a6229468e02e5865792c268913765d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d5a6229468e02e5865792c268913765d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d5a6229468e02e5865792c268913765d_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2668 wrote to memory of 2732	2668	d5a6229468e02e5865792c268913765d_JaffaCakes118.exe	30
PID 2668 wrote to memory of 2732	2668	d5a6229468e02e5865792c268913765d_JaffaCakes118.exe	30
PID 2668 wrote to memory of 2732	2668	d5a6229468e02e5865792c268913765d_JaffaCakes118.exe	30
PID 2668 wrote to memory of 2732	2668	d5a6229468e02e5865792c268913765d_JaffaCakes118.exe	30
PID 2668 wrote to memory of 2984	2668	d5a6229468e02e5865792c268913765d_JaffaCakes118.exe	32
PID 2668 wrote to memory of 2984	2668	d5a6229468e02e5865792c268913765d_JaffaCakes118.exe	32
PID 2668 wrote to memory of 2984	2668	d5a6229468e02e5865792c268913765d_JaffaCakes118.exe	32
PID 2668 wrote to memory of 2984	2668	d5a6229468e02e5865792c268913765d_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\d5a6229468e02e5865792c268913765d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d5a6229468e02e5865792c268913765d_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2668
- C:\Users\Admin\AppData\Local\Temp\d5a6229468e02e5865792c268913765d_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\d5a6229468e02e5865792c268913765d_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2732
- C:\Users\Admin\AppData\Local\Temp\d5a6229468e02e5865792c268913765d_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\d5a6229468e02e5865792c268913765d_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2984

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\4AA8.3D3

Filesize
1KB

MD5
d82d4882230c4e953c3ce1e1c1823a0a

SHA1
9e8517762e7b0669ab4f347e6f2c2eeacbb49ef0

SHA256
42b12589e43cd5118387eae25e6bbec7d900afcebdc0b09ccf693222d1ef72f9

SHA512
93c0bb4a7a60decee6a691a5774d4e0530fa6aee7bfcae4a156d4ef47007cb105f1187b4dea1c4d76f915e772521f3da7eab777c348f800021ce5b2f05dd7ee6

Download Submit
C:\Users\Admin\AppData\Roaming\4AA8.3D3

Filesize
600B

MD5
f6d00f326838917171cd95dabec97cc5

SHA1
631f30a3abfee77f2ef1e8d6f7484c83b96acd2c

SHA256
0e801439c03aaf5960a002e7daf4bccbcbdbe15606e33f54a4f902a1d0e6732f

SHA512
f175a4b44e24d5798f809f926bc247d4d381eeeed2b5adb6a38ea63128cf8cbf7d4d3ee6643de11480a7063a2a21ad6a1e67749ef3a1af994eb9b5c7f2099696

Download Submit
C:\Users\Admin\AppData\Roaming\4AA8.3D3

Filesize
996B

MD5
7f8e8dcaba4a152dbc05f3dab3acdfc0

SHA1
03ab4a42029d582a7bb34bb0b1a6763a5fdf154f

SHA256
af9748998352406c9b3229320235d0c8d9b192392d13634bfea5e4aae3d97d08

SHA512
8863d36f826137a027b56dd2e2bc6637002c56f2e017d609a9a7636fff41bd0f2c6aa54346ee9f6a40b0373f8bcf6430ac060424854248a13c2de85c5f2ae02a

Download Submit
memory/2668-1-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2668-2-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2668-14-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2668-81-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2668-185-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2732-5-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2732-6-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2984-80-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads