cycbot | bdbe75670b11c01aef51a04f979a60fd545e4ee07ccc6efc11e085a1dd131866

General

Target

f019c2b9c2b6a64d57cd4a5b052e35a9_JaffaCakes118.exe
Size

166KB
MD5

f019c2b9c2b6a64d57cd4a5b052e35a9
SHA1

35ecca319710a28d470286432cabb391816642c0
SHA256

bdbe75670b11c01aef51a04f979a60fd545e4ee07ccc6efc11e085a1dd131866
SHA512

749653102095d8b530ce9c524d5d4dcc5744eb51df04685ff3b544a54386c37c028f520054efa726222f9f1468f7251272773ddddfa9ce5cf8d523c6b330c2e3
SSDEEP

3072:vufEwW90LLrjzeNaDaW1S2XyabQNPxPHtHTk8cRB:2sF0eJW1rNbuFA8oB

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/2076-14-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/1864-15-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/1864-77-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2544-79-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/1864-154-0x0000000000400000-0x0000000000445000-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"	f019c2b9c2b6a64d57cd4a5b052e35a9_JaffaCakes118.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1864-2-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2076-12-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2076-14-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/1864-15-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/1864-77-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2544-79-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/1864-154-0x0000000000400000-0x0000000000445000-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	f019c2b9c2b6a64d57cd4a5b052e35a9_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f019c2b9c2b6a64d57cd4a5b052e35a9_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f019c2b9c2b6a64d57cd4a5b052e35a9_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1864 wrote to memory of 2076	1864	f019c2b9c2b6a64d57cd4a5b052e35a9_JaffaCakes118.exe	30
PID 1864 wrote to memory of 2076	1864	f019c2b9c2b6a64d57cd4a5b052e35a9_JaffaCakes118.exe	30
PID 1864 wrote to memory of 2076	1864	f019c2b9c2b6a64d57cd4a5b052e35a9_JaffaCakes118.exe	30
PID 1864 wrote to memory of 2076	1864	f019c2b9c2b6a64d57cd4a5b052e35a9_JaffaCakes118.exe	30
PID 1864 wrote to memory of 2544	1864	f019c2b9c2b6a64d57cd4a5b052e35a9_JaffaCakes118.exe	33
PID 1864 wrote to memory of 2544	1864	f019c2b9c2b6a64d57cd4a5b052e35a9_JaffaCakes118.exe	33
PID 1864 wrote to memory of 2544	1864	f019c2b9c2b6a64d57cd4a5b052e35a9_JaffaCakes118.exe	33
PID 1864 wrote to memory of 2544	1864	f019c2b9c2b6a64d57cd4a5b052e35a9_JaffaCakes118.exe	33

C:\Users\Admin\AppData\Local\Temp\f019c2b9c2b6a64d57cd4a5b052e35a9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f019c2b9c2b6a64d57cd4a5b052e35a9_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1864
- C:\Users\Admin\AppData\Local\Temp\f019c2b9c2b6a64d57cd4a5b052e35a9_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f019c2b9c2b6a64d57cd4a5b052e35a9_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2076
- C:\Users\Admin\AppData\Local\Temp\f019c2b9c2b6a64d57cd4a5b052e35a9_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f019c2b9c2b6a64d57cd4a5b052e35a9_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2544

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\9490.00B

Filesize
600B

MD5
c3af29a48cbe29dc3647f8d1a13204d8

SHA1
b17220611ce61b93c726a99d52f6f6e057ff94cd

SHA256
923e526dddc61d8ff94997f812586085ed340a16ecfe78bc5f46e96690088aea

SHA512
f1af14c24d890ce137c24198bb5bcde5578c4989b68cd1e08f1308a97348ccb3cc59628e57241e29d8093bf94a6ab046ec3f4e5317a94459ac073812523310f2

Download Submit
memory/1864-1-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1864-2-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1864-15-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1864-77-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1864-154-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2076-12-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2076-14-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2544-79-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads