cycbot | dcd8c950639bd4ed17b8c9c67ea5f7590040c4a97fc55de6f56bf8276a759f69

General

Target

cddea6050815701d81b0e09d7f2c15c3_JaffaCakes118.exe
Size

170KB
MD5

cddea6050815701d81b0e09d7f2c15c3
SHA1

34b2edbb877ac76146e90ea5e7f12063bcb57a4b
SHA256

dcd8c950639bd4ed17b8c9c67ea5f7590040c4a97fc55de6f56bf8276a759f69
SHA512

78a5a07f6fd55caf10b61922fd2e9abc9fa92cbffb01fc432450b0b03f59c0b4f4b0de8315a75aec3d5c0fe7dc8522e39838590a70aad688741b063825a14c52
SSDEEP

3072:J6gekefXoHjWWdif83587QVlseQ3G60lUe4eS1ZPPKJ7hN7xpuHE:o3NfXoHJif83XVlsIlUFbbPKjlxcH

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/3444-10-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot
behavioral2/memory/4356-15-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot
behavioral2/memory/1108-79-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot
behavioral2/memory/4356-148-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot
behavioral2/memory/4356-200-0x0000000000400000-0x0000000000444000-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"	cddea6050815701d81b0e09d7f2c15c3_JaffaCakes118.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4356-1-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral2/memory/3444-8-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral2/memory/3444-7-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral2/memory/3444-10-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral2/memory/4356-15-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral2/memory/1108-79-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral2/memory/4356-148-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral2/memory/4356-200-0x0000000000400000-0x0000000000444000-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	cddea6050815701d81b0e09d7f2c15c3_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cddea6050815701d81b0e09d7f2c15c3_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cddea6050815701d81b0e09d7f2c15c3_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4356 wrote to memory of 3444	4356	cddea6050815701d81b0e09d7f2c15c3_JaffaCakes118.exe	83
PID 4356 wrote to memory of 3444	4356	cddea6050815701d81b0e09d7f2c15c3_JaffaCakes118.exe	83
PID 4356 wrote to memory of 3444	4356	cddea6050815701d81b0e09d7f2c15c3_JaffaCakes118.exe	83
PID 4356 wrote to memory of 1108	4356	cddea6050815701d81b0e09d7f2c15c3_JaffaCakes118.exe	93
PID 4356 wrote to memory of 1108	4356	cddea6050815701d81b0e09d7f2c15c3_JaffaCakes118.exe	93
PID 4356 wrote to memory of 1108	4356	cddea6050815701d81b0e09d7f2c15c3_JaffaCakes118.exe	93

C:\Users\Admin\AppData\Local\Temp\cddea6050815701d81b0e09d7f2c15c3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\cddea6050815701d81b0e09d7f2c15c3_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4356
- C:\Users\Admin\AppData\Local\Temp\cddea6050815701d81b0e09d7f2c15c3_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\cddea6050815701d81b0e09d7f2c15c3_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3444
- C:\Users\Admin\AppData\Local\Temp\cddea6050815701d81b0e09d7f2c15c3_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\cddea6050815701d81b0e09d7f2c15c3_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1108

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\8D2C.2C1

Filesize
1KB

MD5
8b9edc4a2c660f7ed8781ac4130e0fe5

SHA1
8b5f4cd5d5513af38cb953b9142aece909085232

SHA256
b43cc95a900310ece882f0b452ddabed3bd700f6ec9a8b70609ccbd9b7c2621a

SHA512
fdc7546b5db44d0983c0cf72264f32908779b34db9f1b583e862e29807c3db51660e738bb369ea9646d2335a3e20ec6b056e16fb7fe656eefa8a456a8fd89788

Download Submit
C:\Users\Admin\AppData\Roaming\8D2C.2C1

Filesize
600B

MD5
2f00f20e82c462d8f1b54ab2e9b1b167

SHA1
5c802ad711e336e9d0c60d2f746ad9ddf3097c44

SHA256
b9af86c33c5dd0b709d507fe9cb8eeb13001521a528944ada414d4b754cd4d7e

SHA512
e6e8aa31d75c71a47969fba1cee7c386c583038aea26587c179e899bf8b5e5d71ee7ac066f1dc5b1030e6592813aa461b31f98cce74a994d82bb4be4360a0d32

Download Submit
C:\Users\Admin\AppData\Roaming\8D2C.2C1

Filesize
996B

MD5
b144fbac8084b67ace499440e283446e

SHA1
b15416bdbed52f2cc940997191aca05a69cb06c5

SHA256
037cb6ceb3821950e2b904b7e9bd9cee16deeee7fb5bc090c4c5e4e0cf4684ee

SHA512
ed44ad44a1cd7cea87b4624264229b6eb6540b24039d5fd322f90fa7e75e626df114a8a955768ed390140f8ebffcc7334d87e8bb60c2c755fbe81a5c4f3a7162

Download Submit
memory/1108-78-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/1108-79-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/3444-8-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/3444-7-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/3444-10-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4356-1-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4356-15-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4356-148-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4356-200-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads