cycbot | 64b0f66a09abcc79957de90cba95e3954dce9d0f9ba0503283a7b83bb992b879

General

Target

JaffaCakes118_2f9dcfeb1d09751cd1bafb19d06af006.exe
Size

158KB
MD5

2f9dcfeb1d09751cd1bafb19d06af006
SHA1

a679811876f5eb769adb5fdd16c9b720feb5501d
SHA256

64b0f66a09abcc79957de90cba95e3954dce9d0f9ba0503283a7b83bb992b879
SHA512

f5b802326559bd26340425c885e8377453b41208b4286d37946e9b1729f6627320eabb6d647ab6df584e75acd86d0add3826e5c9b0590f88d564bcb47d46d378
SSDEEP

3072:y1FxSngp/Zew82am8LTHdRKNSAAE0fivqFrkxrmWirHZC89n6vaL:ID/Z71ATKvOkFmzHfia

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/2548-6-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/1576-14-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/852-82-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/1576-149-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/1576-186-0x0000000000400000-0x0000000000442000-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"	JaffaCakes118_2f9dcfeb1d09751cd1bafb19d06af006.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1576-1-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2548-5-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2548-6-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1576-14-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/852-82-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1576-149-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1576-186-0x0000000000400000-0x0000000000442000-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	JaffaCakes118_2f9dcfeb1d09751cd1bafb19d06af006.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2f9dcfeb1d09751cd1bafb19d06af006.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2f9dcfeb1d09751cd1bafb19d06af006.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1576 wrote to memory of 2548	1576	JaffaCakes118_2f9dcfeb1d09751cd1bafb19d06af006.exe	30
PID 1576 wrote to memory of 2548	1576	JaffaCakes118_2f9dcfeb1d09751cd1bafb19d06af006.exe	30
PID 1576 wrote to memory of 2548	1576	JaffaCakes118_2f9dcfeb1d09751cd1bafb19d06af006.exe	30
PID 1576 wrote to memory of 2548	1576	JaffaCakes118_2f9dcfeb1d09751cd1bafb19d06af006.exe	30
PID 1576 wrote to memory of 852	1576	JaffaCakes118_2f9dcfeb1d09751cd1bafb19d06af006.exe	33
PID 1576 wrote to memory of 852	1576	JaffaCakes118_2f9dcfeb1d09751cd1bafb19d06af006.exe	33
PID 1576 wrote to memory of 852	1576	JaffaCakes118_2f9dcfeb1d09751cd1bafb19d06af006.exe	33
PID 1576 wrote to memory of 852	1576	JaffaCakes118_2f9dcfeb1d09751cd1bafb19d06af006.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2f9dcfeb1d09751cd1bafb19d06af006.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2f9dcfeb1d09751cd1bafb19d06af006.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1576
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2f9dcfeb1d09751cd1bafb19d06af006.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2f9dcfeb1d09751cd1bafb19d06af006.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2548
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2f9dcfeb1d09751cd1bafb19d06af006.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2f9dcfeb1d09751cd1bafb19d06af006.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:852

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\578A.284

Filesize
1KB

MD5
5fbdcd45593e1e5adc494f12b7ad87fa

SHA1
ffa5a4d3f22247907b2e01f1d0c6bedf6a732cc2

SHA256
8d65014aec0f667d37f560c716cdbe0449c56f7fc3650693fbaa03ef9435b401

SHA512
4b6cdb2ae4bdcfaae0b5c99b61f1083f0183fe4459346aa62aac47f9dbefd9c57c1f6874216484f7b5230994f02fe487cb5d08d64e9b26227468cca423848211

Download Submit
C:\Users\Admin\AppData\Roaming\578A.284

Filesize
600B

MD5
fb11f3f60d65622d81248da10380cf82

SHA1
0f0a3f9ee59e80058fe2fad6152303dc428851b3

SHA256
d0086ee61024f302ed4cc9b552ba8be84f339c936e2912fbc1137d206eefcc5d

SHA512
91e6000c4f3cf2f0b31b9760f8d52d4d0be626d5e5011cde575ccfd27ce178fcf272766e1a9aa9607fe565debdcac4ef68d5b7d17179119f17e7014a2ff2a75a

Download Submit
C:\Users\Admin\AppData\Roaming\578A.284

Filesize
996B

MD5
9f8abfc3747902560cec132838730f66

SHA1
2c980c3888f49ec94b113cbc04a83a472897b56a

SHA256
fe60ae77d0187968c9ba5ede9bc92aa37e24ce613cfbeca66a8d84126a063fe5

SHA512
0eed0d33ece4cba06f44f22c5de242ffd71eea1a0113f8627d0ffb9705b5acd78decadd41d18d42551e69ec2d5c02ddd4faf7ad18fb22f62599b29724c536825

Download Submit
memory/852-82-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1576-1-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1576-14-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1576-149-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1576-186-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2548-5-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2548-4-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2548-6-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads