cycbot | 2cfeb29b64598fc88385b451a9b6aa20ebb2070b89e4a88f61b6f4abf96e954f

General

Target

JaffaCakes118_16c890c72f9f83d6212d989965d14380.exe
Size

180KB
MD5

16c890c72f9f83d6212d989965d14380
SHA1

c998dfa6a3f73f4f753dcc8af12a16d15f25e9b6
SHA256

2cfeb29b64598fc88385b451a9b6aa20ebb2070b89e4a88f61b6f4abf96e954f
SHA512

7a62d69b3c6f64170bc709600879f65e580c680c295de688e16e98f6d99437146db91514c1aa396d4f83750687cba8b1cd4ce9e95d01d657b776bd60bd7adf06
SSDEEP

3072:JwSYYWu17R6G8oZd1lW+gVK8Z1LOStDIxc9G1TykAZtCc+mL:LvDrfZDeKe7UVkjCcx

Score

10^/10

cycbot backdoor discovery persistence rat upx

Malware Config

Signatures

Cycbot
Cycbot is a backdoor and trojan written in C++..
backdoor rat cycbot
Cycbot family
cycbot

Detects Cycbot payload 7 IoCs

Cycbot is a backdoor and trojan written in C++.

resource	yara_rule
behavioral2/memory/4336-14-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral2/memory/220-15-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral2/memory/220-89-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral2/memory/3112-92-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral2/memory/220-171-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral2/memory/220-208-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral2/memory/220-209-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot

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_16c890c72f9f83d6212d989965d14380.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/220-2-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/4336-12-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/4336-14-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/220-15-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/220-89-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/3112-92-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/220-171-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/220-208-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/220-209-0x0000000000400000-0x000000000044B000-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	JaffaCakes118_16c890c72f9f83d6212d989965d14380.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 220 wrote to memory of 4336	220	JaffaCakes118_16c890c72f9f83d6212d989965d14380.exe	85
PID 220 wrote to memory of 4336	220	JaffaCakes118_16c890c72f9f83d6212d989965d14380.exe	85
PID 220 wrote to memory of 4336	220	JaffaCakes118_16c890c72f9f83d6212d989965d14380.exe	85
PID 220 wrote to memory of 3112	220	JaffaCakes118_16c890c72f9f83d6212d989965d14380.exe	87
PID 220 wrote to memory of 3112	220	JaffaCakes118_16c890c72f9f83d6212d989965d14380.exe	87
PID 220 wrote to memory of 3112	220	JaffaCakes118_16c890c72f9f83d6212d989965d14380.exe	87

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_16c890c72f9f83d6212d989965d14380.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_16c890c72f9f83d6212d989965d14380.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:220
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_16c890c72f9f83d6212d989965d14380.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_16c890c72f9f83d6212d989965d14380.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  PID:4336
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_16c890c72f9f83d6212d989965d14380.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_16c890c72f9f83d6212d989965d14380.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  PID:3112

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

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\56D6.FA4

Filesize
1KB

MD5
7804eba806a6d0a2eef0922bde114e73

SHA1
a96d40410adb2fd8f9c832e8b1ee7bb5d05c1a6e

SHA256
837e8c515a6cd8b0ceb453d5cab8428a5ae63e3fcf173d8c91ca81e72e0155ff

SHA512
8cf592da31492107009f8742895dffbd3e2f535c3b08369b0d14c2152d6302630a753872709eaf1a4902848c2d6927dffa4bdeba647df4b11e5fe1fc380556bb

Download Submit
C:\Users\Admin\AppData\Roaming\56D6.FA4

Filesize
600B

MD5
1b6fc0fc38828d6ad44336118385845f

SHA1
a56eaa08424a68f849c62e1aad73dff3fb6e49c1

SHA256
888c2162208acfc57b546e4eb72503d3478016e756df6dfa108411d7f9a385ee

SHA512
8ee61d4e9dde27702502d8ceac4a6f674aefa64f1ee53bad2ef1cb2936c5a340627113388916fe8fe67cdda03ee0645092b0f254012d0b42f7021503e1632386

Download Submit
C:\Users\Admin\AppData\Roaming\56D6.FA4

Filesize
996B

MD5
e68dd533837280c587e320e4c03755d3

SHA1
01aa94b88b7e4b7b2242a607160650b9e1f88020

SHA256
2587c1b17854f6699d3a5ebc8f334c6b0251410a1bc05c93b07ad4d0dd34b18a

SHA512
ee99701962350ab24c340e1b4f561d28b4cdf648fdbb629ac351e3765411992828ab19bb733cc0b85a496b5541eb24c18d9bf1eebcb6319b03a27bd344ff3e43

Download Submit
memory/220-89-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/220-15-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/220-1-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/220-2-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/220-171-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/220-208-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/220-209-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/3112-91-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/3112-92-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4336-14-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4336-12-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads