cycbot | 941ed418d8b00521ffef714afcf38d5c85bfc708b32b2e113c743e6aecfc203d

General

Target

f276498ca3368e3b3cae395669c90113_JaffaCakes118.exe
Size

166KB
MD5

f276498ca3368e3b3cae395669c90113
SHA1

3959fe3c96c57e28009b09d20386e8e87b730479
SHA256

941ed418d8b00521ffef714afcf38d5c85bfc708b32b2e113c743e6aecfc203d
SHA512

cad6ab73ac04daabf1620ada048f9856ff1edc3e541d0af612460ebcfaf5da39c82202eca59faa066e6a8fbfd2323a020722b953716cbb2236016a7ac16c6090
SSDEEP

3072:z8qeqDUP9qIBQUnwQNUWQTGHXikSh/8r5pvEz/GtelvG3s:zReq09qIWUJuGHX+Or5iz+T

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/2832-14-0x0000000000400000-0x0000000000446000-memory.dmp	family_cycbot
behavioral1/memory/2512-15-0x0000000000400000-0x0000000000446000-memory.dmp	family_cycbot
behavioral1/memory/1112-82-0x0000000000400000-0x0000000000446000-memory.dmp	family_cycbot
behavioral1/memory/2512-83-0x0000000000400000-0x0000000000446000-memory.dmp	family_cycbot
behavioral1/memory/2512-193-0x0000000000400000-0x0000000000446000-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"	f276498ca3368e3b3cae395669c90113_JaffaCakes118.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2512-2-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral1/memory/2832-8-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral1/memory/2832-14-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral1/memory/2512-15-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral1/memory/1112-82-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral1/memory/2512-83-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral1/memory/2512-193-0x0000000000400000-0x0000000000446000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 1 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	f276498ca3368e3b3cae395669c90113_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2512 wrote to memory of 2832	2512	f276498ca3368e3b3cae395669c90113_JaffaCakes118.exe	31
PID 2512 wrote to memory of 2832	2512	f276498ca3368e3b3cae395669c90113_JaffaCakes118.exe	31
PID 2512 wrote to memory of 2832	2512	f276498ca3368e3b3cae395669c90113_JaffaCakes118.exe	31
PID 2512 wrote to memory of 2832	2512	f276498ca3368e3b3cae395669c90113_JaffaCakes118.exe	31
PID 2512 wrote to memory of 1112	2512	f276498ca3368e3b3cae395669c90113_JaffaCakes118.exe	33
PID 2512 wrote to memory of 1112	2512	f276498ca3368e3b3cae395669c90113_JaffaCakes118.exe	33
PID 2512 wrote to memory of 1112	2512	f276498ca3368e3b3cae395669c90113_JaffaCakes118.exe	33
PID 2512 wrote to memory of 1112	2512	f276498ca3368e3b3cae395669c90113_JaffaCakes118.exe	33

C:\Users\Admin\AppData\Local\Temp\f276498ca3368e3b3cae395669c90113_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f276498ca3368e3b3cae395669c90113_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2512
- C:\Users\Admin\AppData\Local\Temp\f276498ca3368e3b3cae395669c90113_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f276498ca3368e3b3cae395669c90113_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  PID:2832
- C:\Users\Admin\AppData\Local\Temp\f276498ca3368e3b3cae395669c90113_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f276498ca3368e3b3cae395669c90113_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  PID:1112

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\119E.2EE

Filesize
1KB

MD5
4aaa31d5914c3392a2bbb9c5de88cddf

SHA1
f82e56b041ed1ac458b5a14c044df235d2424f2d

SHA256
3aaf48df4ee2b2d9e8d4da8d4fc720142819cff9ab5fff8a1d3126d68408e9c5

SHA512
6be550325e753ca346ceeaa426e521fd99f4c7b1cd177716711f04f10dfe7fc6fec93b5de3128fceb18de631d1109b0d9e47876c3bc514ceb07bc5b267de793d

Download Submit
C:\Users\Admin\AppData\Roaming\119E.2EE

Filesize
600B

MD5
8eb487b71032c79a1da88f9d5a4d94d1

SHA1
101c560e035ea0fd657b3f6da5e9401c2739cc6a

SHA256
ca3aed00b7556dd21b3cdb2f8edc34ee0f087131665d81364593d1c6c0f1921c

SHA512
89ddb93dc386e34c4b864d87576856ebc7b35290d3ae1531b8b72a35c7a418e961e9ffb84c2f573c118865eb1ba7df5fdac198fba911ae9e4af9e06d9dae6893

Download Submit
C:\Users\Admin\AppData\Roaming\119E.2EE

Filesize
996B

MD5
7365c54695c14b69ab8b0125718a4a1c

SHA1
6d646f90adc28e279447e07a490c3d0ac3cccc21

SHA256
186ab3b2b5f73e8c94169a634d5710bcbbd724f6ecf6494631fd54edc576bc56

SHA512
aff4f04d3f6a0d2ebd9faa68de7198e0c73283407d8f0b661d5bfaa945a74447197a73e0775f07750e2dcd269ccc94d6a18447d4fa7226ea0608851336fd7943

Download Submit
memory/1112-82-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/2512-1-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/2512-2-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/2512-15-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/2512-83-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/2512-193-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/2832-8-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/2832-14-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads