cycbot | bc4e184421188a6f3899f637bf3074f0fead80f806e069cbcd7e11d0640b5301

General

Target

ec0b8efafb6aa8043ce6e923ab6e64be_JaffaCakes118.exe
Size

175KB
MD5

ec0b8efafb6aa8043ce6e923ab6e64be
SHA1

6b8cc0c2430750d1d4b2a2a0d190a95eac46bb8b
SHA256

bc4e184421188a6f3899f637bf3074f0fead80f806e069cbcd7e11d0640b5301
SHA512

8c6d34f349504dfc840634a14490b9a77088d025efc58acd7177981cffe0695bfaad154708be0d4abeeba1891f2f67ed0d0887b61020426c6a532b8a195ded46
SSDEEP

3072:hjM1X4NZ8POD5njLC8qkFcmphvg3Ba7Ecti0d5rsyTvOL+kb041Av8A1:iZ4NZaMLC8qkVvma77t9wH+kbHs8A

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/3320-9-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/1460-14-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/1460-73-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/232-78-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/1460-179-0x0000000000400000-0x0000000000445000-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"	ec0b8efafb6aa8043ce6e923ab6e64be_JaffaCakes118.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1460-2-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/3320-9-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/1460-14-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/1460-73-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/232-76-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/232-78-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/1460-179-0x0000000000400000-0x0000000000445000-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	ec0b8efafb6aa8043ce6e923ab6e64be_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ec0b8efafb6aa8043ce6e923ab6e64be_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ec0b8efafb6aa8043ce6e923ab6e64be_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1460 wrote to memory of 3320	1460	ec0b8efafb6aa8043ce6e923ab6e64be_JaffaCakes118.exe	83
PID 1460 wrote to memory of 3320	1460	ec0b8efafb6aa8043ce6e923ab6e64be_JaffaCakes118.exe	83
PID 1460 wrote to memory of 3320	1460	ec0b8efafb6aa8043ce6e923ab6e64be_JaffaCakes118.exe	83
PID 1460 wrote to memory of 232	1460	ec0b8efafb6aa8043ce6e923ab6e64be_JaffaCakes118.exe	84
PID 1460 wrote to memory of 232	1460	ec0b8efafb6aa8043ce6e923ab6e64be_JaffaCakes118.exe	84
PID 1460 wrote to memory of 232	1460	ec0b8efafb6aa8043ce6e923ab6e64be_JaffaCakes118.exe	84

C:\Users\Admin\AppData\Local\Temp\ec0b8efafb6aa8043ce6e923ab6e64be_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ec0b8efafb6aa8043ce6e923ab6e64be_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1460
- C:\Users\Admin\AppData\Local\Temp\ec0b8efafb6aa8043ce6e923ab6e64be_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\ec0b8efafb6aa8043ce6e923ab6e64be_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3320
- C:\Users\Admin\AppData\Local\Temp\ec0b8efafb6aa8043ce6e923ab6e64be_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\ec0b8efafb6aa8043ce6e923ab6e64be_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:232

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\A7A0.D1E

Filesize
1KB

MD5
2ac05de167b5f166a8515cfb8141ab01

SHA1
ceb85be3c0e7e6d79db649ca0adb4d86167fde38

SHA256
7d7c782005efdba473ac8850560fb9467c047dd7ea9fc4d44f7ee680b85e022e

SHA512
9f63047b3a7365d2d5b90444da7040a0a1596060e293ac70c197cef63c4a7abd7a5c48452f905bbf892093fb42372890d8017f90019c7fc90d5917cfaf369194

Download Submit
C:\Users\Admin\AppData\Roaming\A7A0.D1E

Filesize
600B

MD5
9546c042225dc6fcc6ce04c8efa9c074

SHA1
1dab3670dab0b9025cb3e37f2510051c76febdf8

SHA256
f43d9c6a92c1f791b5cc6f60f27fd77ea367af8b426debdfd6f53016ce363d36

SHA512
f8d4a4b10b26c50828b01ff153500d4372da99de0a7084f4efae005fee4493f374cf01c4a5f6b7de7d206580ebd56837003b01ca8aed61c5625f9272951089b4

Download Submit
C:\Users\Admin\AppData\Roaming\A7A0.D1E

Filesize
996B

MD5
3537f0d1acdd70d42b861a895d3d26f2

SHA1
2c318fb82bb3f70c66c7510a3d049a5b6508bc42

SHA256
bf9a68f0e96de7e31dd6e78a58fecd9123014b9a306acd130fc320604139d32c

SHA512
687ef74c4c072c32d28c8fedfbaa07995b3351a0eb072255b1f60f77894c611be369fbb4065384933d8ed57627f624f1192cf2412bae21f309366c3c81a578a9

Download Submit
memory/232-75-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/232-76-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/232-78-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1460-1-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1460-2-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1460-14-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1460-73-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1460-179-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/3320-9-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads