cycbot | 4f9d4b811f5c7f7d2ed411dc11d1d8d8f7ddd6a38f678cbda7c08d2b81c85cc0

General

Target

JaffaCakes118_48c5af8114a5aed07fa3a400877132d5.exe
Size

179KB
MD5

48c5af8114a5aed07fa3a400877132d5
SHA1

f564562c0a363069fd5684857876d68e19555841
SHA256

4f9d4b811f5c7f7d2ed411dc11d1d8d8f7ddd6a38f678cbda7c08d2b81c85cc0
SHA512

dd7a02cc60ae37e15fa40e88a549dbb7bcd3a08e28708be023a4280484c149c15ae91e3e0344dd582b98cc1b14e44805c2b1850099cd845e98dc3a0b794ff603
SSDEEP

3072:qXj5OufhDwkH8m0Df4v9coDzldEM4Q/GxO/aUm76/CdD0lZnJJDwY:Wj5bfhDp8mQfovPEML0O/C7FKPk

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/1544-6-0x0000000000400000-0x0000000000443000-memory.dmp	family_cycbot
behavioral1/memory/3060-13-0x0000000000400000-0x0000000000443000-memory.dmp	family_cycbot
behavioral1/memory/2088-67-0x0000000000400000-0x0000000000443000-memory.dmp	family_cycbot
behavioral1/memory/3060-68-0x0000000000400000-0x0000000000443000-memory.dmp	family_cycbot
behavioral1/memory/3060-172-0x0000000000400000-0x0000000000443000-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_48c5af8114a5aed07fa3a400877132d5.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3060-2-0x0000000000400000-0x0000000000443000-memory.dmp	upx
behavioral1/memory/1544-5-0x0000000000400000-0x0000000000443000-memory.dmp	upx
behavioral1/memory/1544-6-0x0000000000400000-0x0000000000443000-memory.dmp	upx
behavioral1/memory/3060-13-0x0000000000400000-0x0000000000443000-memory.dmp	upx
behavioral1/memory/2088-67-0x0000000000400000-0x0000000000443000-memory.dmp	upx
behavioral1/memory/3060-68-0x0000000000400000-0x0000000000443000-memory.dmp	upx
behavioral1/memory/3060-172-0x0000000000400000-0x0000000000443000-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_48c5af8114a5aed07fa3a400877132d5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_48c5af8114a5aed07fa3a400877132d5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_48c5af8114a5aed07fa3a400877132d5.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3060 wrote to memory of 1544	3060	JaffaCakes118_48c5af8114a5aed07fa3a400877132d5.exe	31
PID 3060 wrote to memory of 1544	3060	JaffaCakes118_48c5af8114a5aed07fa3a400877132d5.exe	31
PID 3060 wrote to memory of 1544	3060	JaffaCakes118_48c5af8114a5aed07fa3a400877132d5.exe	31
PID 3060 wrote to memory of 1544	3060	JaffaCakes118_48c5af8114a5aed07fa3a400877132d5.exe	31
PID 3060 wrote to memory of 2088	3060	JaffaCakes118_48c5af8114a5aed07fa3a400877132d5.exe	33
PID 3060 wrote to memory of 2088	3060	JaffaCakes118_48c5af8114a5aed07fa3a400877132d5.exe	33
PID 3060 wrote to memory of 2088	3060	JaffaCakes118_48c5af8114a5aed07fa3a400877132d5.exe	33
PID 3060 wrote to memory of 2088	3060	JaffaCakes118_48c5af8114a5aed07fa3a400877132d5.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_48c5af8114a5aed07fa3a400877132d5.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_48c5af8114a5aed07fa3a400877132d5.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3060
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_48c5af8114a5aed07fa3a400877132d5.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_48c5af8114a5aed07fa3a400877132d5.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1544
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_48c5af8114a5aed07fa3a400877132d5.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_48c5af8114a5aed07fa3a400877132d5.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2088

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\0279.E09

Filesize
1KB

MD5
875f37ceaa32444b1385a4ab6f6d96a4

SHA1
39b0cf89f65ffcde45348fa83076d5e99845bb5b

SHA256
628be44cc95c4ff67773e49435a4781fea07c11930942aedac2c777ef7e76bd2

SHA512
24cb4bd0860dd67a0324207c4eb9596b1b0966eca4e77853a44b921aa830a940433a39a9bf1afd83d6c9c34ad48833da38ad090cbcc81d37527383add1c3e1d8

Download Submit
C:\Users\Admin\AppData\Roaming\0279.E09

Filesize
600B

MD5
fad1d86e184a2042f41a5431831cd81d

SHA1
fed8168ed68f2021db20ee0fdb2709d26cbdca32

SHA256
6840d21d53cff8581e7718661b630c7fa84dd4ff808e702dfcb13c49039c9f23

SHA512
d9ea433f86347deb0700acf9cad30bfa498a5063fee294c93818c0c8fe037f68659f74b56542f132ada6d4fbd3978692211c750436564438bf562e330407cda3

Download Submit
C:\Users\Admin\AppData\Roaming\0279.E09

Filesize
996B

MD5
cfaf14c4d79fd529c79c6e356d1c4ef7

SHA1
f0155d4ac3c16fdcb9f49ae7b6d9f5f771a3283d

SHA256
923cd1a012f3335db0110f2ded707f81eefa9ce6914171619d4817c18732ec1b

SHA512
eabb4a20af3418002376a7194d9d4dfc77689a43e8d494235b0b9281e301e653ca12bdc41a48390313606f2d8f2af298896ea01cf5bcf70bcaf7ba7843ee3979

Download Submit
memory/1544-5-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/1544-6-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/2088-67-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/3060-1-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/3060-2-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/3060-13-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/3060-68-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/3060-172-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads