cycbot | a028fbb2258686018ae123b93b96b4f6f55fd8b1937086c0b8f8d8e828330528

General

Target

JaffaCakes118_69df22aca47809a2ff4f87b6819d0a3c.exe
Size

175KB
MD5

69df22aca47809a2ff4f87b6819d0a3c
SHA1

dbd6ef73e9011721a52ae0879966fe9e51dcdeb1
SHA256

a028fbb2258686018ae123b93b96b4f6f55fd8b1937086c0b8f8d8e828330528
SHA512

61d282c5c35b8ef2109c15c1377444db7327575678378eb13fcb0b8ccb84955dad844230048ea167a12526cd3a176572a4adc14cd1068f987b9b9204118ce81a
SSDEEP

3072:BJUdz6ucZ48oTFUxXrG8p9ioNu1DYMRz9ucjr1M:k/cm8XTpM711M

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 5 IoCs

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

resource	yara_rule
behavioral2/memory/516-9-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral2/memory/4688-14-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral2/memory/3676-75-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral2/memory/4688-76-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral2/memory/4688-184-0x0000000000400000-0x000000000044B000-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_69df22aca47809a2ff4f87b6819d0a3c.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4688-1-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/516-8-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/516-7-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/516-9-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/4688-14-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/3676-75-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/4688-76-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/4688-184-0x0000000000400000-0x000000000044B000-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_69df22aca47809a2ff4f87b6819d0a3c.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4688 wrote to memory of 516	4688	JaffaCakes118_69df22aca47809a2ff4f87b6819d0a3c.exe	85
PID 4688 wrote to memory of 516	4688	JaffaCakes118_69df22aca47809a2ff4f87b6819d0a3c.exe	85
PID 4688 wrote to memory of 516	4688	JaffaCakes118_69df22aca47809a2ff4f87b6819d0a3c.exe	85
PID 4688 wrote to memory of 3676	4688	JaffaCakes118_69df22aca47809a2ff4f87b6819d0a3c.exe	95
PID 4688 wrote to memory of 3676	4688	JaffaCakes118_69df22aca47809a2ff4f87b6819d0a3c.exe	95
PID 4688 wrote to memory of 3676	4688	JaffaCakes118_69df22aca47809a2ff4f87b6819d0a3c.exe	95

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_69df22aca47809a2ff4f87b6819d0a3c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_69df22aca47809a2ff4f87b6819d0a3c.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4688
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_69df22aca47809a2ff4f87b6819d0a3c.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_69df22aca47809a2ff4f87b6819d0a3c.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  PID:516
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_69df22aca47809a2ff4f87b6819d0a3c.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_69df22aca47809a2ff4f87b6819d0a3c.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  PID:3676

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\7F7B.EDE

Filesize
1KB

MD5
d224177cb5b58965b27dac0269251aa2

SHA1
a7e5618a55a1308d2fc4cbddd8c27aa21242d59c

SHA256
c5acc862e70595063066feb39b352e8f138fd0f5678aa1c3c4ae1e02e3f79698

SHA512
01830808c04c22ff38fb025135b5ac10d167025a835dc60b2bef63cd5fef5fc7e11969bddb1463132e4c72eee41b1b586b9f99e7096d4666c85a037c3211503a

Download Submit
C:\Users\Admin\AppData\Roaming\7F7B.EDE

Filesize
600B

MD5
550a118db71734b9c73dae96574b9467

SHA1
d11e5a602408eaaae3d0d919a3d61ee8f022bb62

SHA256
b331aada43df3ba8c9ec07a3258e6e8527b0994f814bac45eef328686d40cf65

SHA512
afb6d796066dedf02bf179a78bfa40795afb18e004c143ab443ee8f9644fc0d74c1a04565131df0c598582d50223ed95899b9f9068c1f0efae74604c2b57b72f

Download Submit
C:\Users\Admin\AppData\Roaming\7F7B.EDE

Filesize
996B

MD5
1bd42d8139738f0129db17b1344aad87

SHA1
5d7640871929a36ccedb04cdfe52408740d911ca

SHA256
bb31ac0df5fa3f1fe69ecafed90135c816112875cc4c65053d18287407894bcd

SHA512
ce35274d57cb3b765a425c9e01fbbc5041c83fcd75fcf4dc759e44244c7fa9e6381c3824184e6871f204fe0d3f38be632ff4f5dbd26f06806e69a5bdea06801a

Download Submit
memory/516-8-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/516-7-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/516-9-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/3676-73-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/3676-75-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4688-1-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4688-14-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4688-76-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4688-184-0x0000000000400000-0x000000000044B000-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