cycbot | be4979cef77398a3dc5a2c47ac1aeb6677e6502480e6f08bdb773ad9d0ffa141

General

Target

a320ac97a815df118c212e31647c3ce6_JaffaCakes118.exe
Size

178KB
MD5

a320ac97a815df118c212e31647c3ce6
SHA1

56841e85b16d3de4734a80f2731279f1f332f4e7
SHA256

be4979cef77398a3dc5a2c47ac1aeb6677e6502480e6f08bdb773ad9d0ffa141
SHA512

73b04a136813f649258661d6e7ea491e957f6afe2cf8f533115f0091ec11a46e1e3d056acab0a1469a82c7bc5ce3259edaedd84f4a7e7f768c3ec615098a9f47
SSDEEP

3072:E9isA4AaRLdXouF87z2x7zAPV9GH6l6OxQryQ0J0Wspw:kL387zbV9GaOyQvWsq

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/2888-8-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2784-15-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/1640-77-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2784-78-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2784-179-0x0000000000400000-0x0000000000442000-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"	a320ac97a815df118c212e31647c3ce6_JaffaCakes118.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2784-2-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2888-6-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2888-8-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2784-15-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1640-77-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2784-78-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2784-179-0x0000000000400000-0x0000000000442000-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	a320ac97a815df118c212e31647c3ce6_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a320ac97a815df118c212e31647c3ce6_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a320ac97a815df118c212e31647c3ce6_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2784 wrote to memory of 2888	2784	a320ac97a815df118c212e31647c3ce6_JaffaCakes118.exe	30
PID 2784 wrote to memory of 2888	2784	a320ac97a815df118c212e31647c3ce6_JaffaCakes118.exe	30
PID 2784 wrote to memory of 2888	2784	a320ac97a815df118c212e31647c3ce6_JaffaCakes118.exe	30
PID 2784 wrote to memory of 2888	2784	a320ac97a815df118c212e31647c3ce6_JaffaCakes118.exe	30
PID 2784 wrote to memory of 1640	2784	a320ac97a815df118c212e31647c3ce6_JaffaCakes118.exe	32
PID 2784 wrote to memory of 1640	2784	a320ac97a815df118c212e31647c3ce6_JaffaCakes118.exe	32
PID 2784 wrote to memory of 1640	2784	a320ac97a815df118c212e31647c3ce6_JaffaCakes118.exe	32
PID 2784 wrote to memory of 1640	2784	a320ac97a815df118c212e31647c3ce6_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\a320ac97a815df118c212e31647c3ce6_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a320ac97a815df118c212e31647c3ce6_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2784
- C:\Users\Admin\AppData\Local\Temp\a320ac97a815df118c212e31647c3ce6_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\a320ac97a815df118c212e31647c3ce6_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2888
- C:\Users\Admin\AppData\Local\Temp\a320ac97a815df118c212e31647c3ce6_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\a320ac97a815df118c212e31647c3ce6_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1640

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\E1CC.8F4

Filesize
1KB

MD5
afefc494a1e8298a5a87bb84bf0c4336

SHA1
408ce59779a158cbade1050e2efe9e0f10dbf420

SHA256
5b6ff3cf4171e075b2cd922b78c247ec14945018eb398a92fb36402f9f05b8c2

SHA512
8902f203b34f7afe1d536b9264ee438ded6bc8e3d70733ee7ed3ff3fa17015e56495fd76478871a51601ffc477ea0655b3a0830239f4fb3daa7385f96b25600d

Download Submit
C:\Users\Admin\AppData\Roaming\E1CC.8F4

Filesize
600B

MD5
f7f6ea6ab112807239773418c905a96e

SHA1
632e3d8d2057178372e335e5d4e38784107add97

SHA256
59ac18b44e49594b337ff75cb3f86ccf4ad158f902d6e82e8c6cef84fa22b513

SHA512
ea345cbe633f29f66c272ca207647b714ee01307f40d27a02a8148fa4dc0f349bad5a21285bbf7a111ecb3790fcd17a128104daca5df756ce9cfe9dd1419b8ee

Download Submit
C:\Users\Admin\AppData\Roaming\E1CC.8F4

Filesize
996B

MD5
65d5d14fda820e599ba14ae7a864e3ce

SHA1
625ccdf4c64e85b0d9d755fe6cb364ca4418774e

SHA256
10704cbe86f6a1f9db5ea0c0a1a1860999cfbc567ecbe6da32ce13a22cb79fc1

SHA512
2a9842e433cbfc1c962512c7e356a95407a8ad582f335cae728c9372b237674248fd7a09a9bff9f1a64dafa479b62a94b108c7874dc63b13059bebf7e7bb274a

Download Submit
memory/1640-77-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2784-1-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2784-2-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2784-15-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2784-78-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2784-179-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2888-6-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2888-8-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2888-5-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads