cycbot | 0eb9f7473f5cacc2a2180166e0d790648ae92c04e1d6ab6d9faea26a9540516f

General

Target

e07e755233bfca77d17d2044af6c512b_JaffaCakes118.exe
Size

205KB
MD5

e07e755233bfca77d17d2044af6c512b
SHA1

84313b519bc7fb1723b0ebd70851c3212b4456ea
SHA256

0eb9f7473f5cacc2a2180166e0d790648ae92c04e1d6ab6d9faea26a9540516f
SHA512

3d8b43ce5ee3738ae887d8d03a5697a4f735204d4573831a39a131560adad82e9a42522ed82c26dc825dee28db8138852972ebd01a39c5a5561829210d7ee5fe
SSDEEP

3072:y6kBHbpmyAZeXPjMZlIGmJaPovQj1JNu0czvb59jh/R0X95YhNhGj7tXPKzgy1Ml:+t9AMKIGYaPovQjJ6J2zcNhiXPagyw

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/2044-7-0x0000000000400000-0x000000000046E000-memory.dmp	family_cycbot
behavioral1/memory/2036-15-0x0000000000400000-0x000000000046E000-memory.dmp	family_cycbot
behavioral1/memory/2036-82-0x0000000000400000-0x000000000046E000-memory.dmp	family_cycbot
behavioral1/memory/2616-84-0x0000000000400000-0x000000000046E000-memory.dmp	family_cycbot
behavioral1/memory/2036-196-0x0000000000400000-0x000000000046E000-memory.dmp	family_cycbot

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\dwm.exe"	e07e755233bfca77d17d2044af6c512b_JaffaCakes118.exe

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

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2036-2-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral1/memory/2044-7-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral1/memory/2044-6-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral1/memory/2036-15-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral1/memory/2036-82-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral1/memory/2616-84-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral1/memory/2036-196-0x0000000000400000-0x000000000046E000-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	e07e755233bfca77d17d2044af6c512b_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e07e755233bfca77d17d2044af6c512b_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e07e755233bfca77d17d2044af6c512b_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2036 wrote to memory of 2044	2036	e07e755233bfca77d17d2044af6c512b_JaffaCakes118.exe	30
PID 2036 wrote to memory of 2044	2036	e07e755233bfca77d17d2044af6c512b_JaffaCakes118.exe	30
PID 2036 wrote to memory of 2044	2036	e07e755233bfca77d17d2044af6c512b_JaffaCakes118.exe	30
PID 2036 wrote to memory of 2044	2036	e07e755233bfca77d17d2044af6c512b_JaffaCakes118.exe	30
PID 2036 wrote to memory of 2616	2036	e07e755233bfca77d17d2044af6c512b_JaffaCakes118.exe	33
PID 2036 wrote to memory of 2616	2036	e07e755233bfca77d17d2044af6c512b_JaffaCakes118.exe	33
PID 2036 wrote to memory of 2616	2036	e07e755233bfca77d17d2044af6c512b_JaffaCakes118.exe	33
PID 2036 wrote to memory of 2616	2036	e07e755233bfca77d17d2044af6c512b_JaffaCakes118.exe	33

C:\Users\Admin\AppData\Local\Temp\e07e755233bfca77d17d2044af6c512b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e07e755233bfca77d17d2044af6c512b_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2036
- C:\Users\Admin\AppData\Local\Temp\e07e755233bfca77d17d2044af6c512b_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\e07e755233bfca77d17d2044af6c512b_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2044
- C:\Users\Admin\AppData\Local\Temp\e07e755233bfca77d17d2044af6c512b_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\e07e755233bfca77d17d2044af6c512b_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2616

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

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\9DE3.892

Filesize
1KB

MD5
cbbb7e0fc124da857fa2ced06f5a8fa0

SHA1
1924cac75ba5d53c7574c3c10325f9efcb1be7b3

SHA256
fe270320b0886847048e15bb243cba9321b2ec904d5956388b830534328fc93f

SHA512
29f576aea106c3874e0656baf51a018be982e25be66e36afa64db11c25892eb58faa9313b6d1b259d00a3759ddd00bd416c3e77930c46db71c1e095ca48e56cc

Download Submit
C:\Users\Admin\AppData\Roaming\9DE3.892

Filesize
600B

MD5
cfaccf1b0dd1701a2326409db0daff62

SHA1
7fa96fc64a8af71e2819ea1b6ce89b4ac5487e91

SHA256
db4bde3f8781d0e25a30858ad50310c094f842a905f61cb538c339b7d1a52f8d

SHA512
aee897e73e9d348f8e76cb045a8b55c81b1308ad30be8add6acad2b680bac28f6b4b0bdd6f667c665f1ccc4fe198e8f0da9ec58b77789e2b888698f96c841e95

Download Submit
C:\Users\Admin\AppData\Roaming\9DE3.892

Filesize
996B

MD5
912993142b9c0bc53a33c2abb55214d5

SHA1
7c2fcb867434f9647eaed7119850ea7ae2030347

SHA256
6a6610658eb2b30e8389eadbf368de0677d23f22147c1dac2c11535350dd5da8

SHA512
0d4204b7480b094ad175ee5ef633ec297e021ea499a38b770f03c35cdf804c6bef8a8fe79c1b1c2999e8b0f7e4f37b6d12ecb60c3dcb75de1f5a3f7dde143936

Download Submit
memory/2036-1-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2036-2-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2036-15-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2036-82-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2036-196-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2044-7-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2044-6-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2616-84-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads