cycbot | 106c9788b44d9566a95c7a2a273495fe20e60b4bca8e4b5f114763388d47dfe8

General

Target

JaffaCakes118_785483038efcd32b3be7758ad35ea82c.exe
Size

172KB
MD5

785483038efcd32b3be7758ad35ea82c
SHA1

0543845b921d1b4f34c26c730831f8a9732563b2
SHA256

106c9788b44d9566a95c7a2a273495fe20e60b4bca8e4b5f114763388d47dfe8
SHA512

9877dc7a8d8aea12b8253b60fbc629adbf52899bc682c150f73fc51f070ffc76413e52a22c18e2f9d6b860e0b5daa0d969b8de329e1edcd21a6b8eee0a6fadde
SSDEEP

3072:97p4RD9L54Gj+Zz/RKQq3niuwI0UD1U4w7ejvTYxD/PcLJWA:RS19yxVpKQ6z1U4w8TYxzH

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 6 IoCs

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

resource	yara_rule
behavioral2/memory/5024-14-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/4904-15-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/4904-70-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/3008-72-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/4904-177-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/4904-182-0x0000000000400000-0x0000000000445000-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"	JaffaCakes118_785483038efcd32b3be7758ad35ea82c.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4904-2-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/5024-12-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/5024-14-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/4904-15-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/4904-70-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/3008-72-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/4904-177-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/4904-182-0x0000000000400000-0x0000000000445000-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	JaffaCakes118_785483038efcd32b3be7758ad35ea82c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_785483038efcd32b3be7758ad35ea82c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_785483038efcd32b3be7758ad35ea82c.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4904 wrote to memory of 5024	4904	JaffaCakes118_785483038efcd32b3be7758ad35ea82c.exe	82
PID 4904 wrote to memory of 5024	4904	JaffaCakes118_785483038efcd32b3be7758ad35ea82c.exe	82
PID 4904 wrote to memory of 5024	4904	JaffaCakes118_785483038efcd32b3be7758ad35ea82c.exe	82
PID 4904 wrote to memory of 3008	4904	JaffaCakes118_785483038efcd32b3be7758ad35ea82c.exe	83
PID 4904 wrote to memory of 3008	4904	JaffaCakes118_785483038efcd32b3be7758ad35ea82c.exe	83
PID 4904 wrote to memory of 3008	4904	JaffaCakes118_785483038efcd32b3be7758ad35ea82c.exe	83

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_785483038efcd32b3be7758ad35ea82c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_785483038efcd32b3be7758ad35ea82c.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4904
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_785483038efcd32b3be7758ad35ea82c.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_785483038efcd32b3be7758ad35ea82c.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5024
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_785483038efcd32b3be7758ad35ea82c.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_785483038efcd32b3be7758ad35ea82c.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3008

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\460B.036

Filesize
1KB

MD5
233e9311f5692f48cb3e2e116736b4c4

SHA1
6b8e21d8ca8cd8cb39886c1331099730dfabfa92

SHA256
a81c8df0cb8bfe8b0e5229daa548abdaf4e3336a12fb57a2d91218cf19d37a8c

SHA512
450ecff90699e2b97c63c7ae5e8e54dc86cbf5dfdda069caa0c151c1197aca9206f5fdedcb5d79f95e94ae96644da7096a7899940833781c9b078ebc9bbb7e62

Download Submit
C:\Users\Admin\AppData\Roaming\460B.036

Filesize
600B

MD5
06e18f99a5cf863398e23aaa93248f4b

SHA1
ecf0a4784b6ba81f1538f7595eb36c4df38a1180

SHA256
607690c12dffdf6a1c195129afff8c0710407710a875a6415d49de1692deb49e

SHA512
937f3cb60e38e20d1580beacad6121896de95eced6bc54df6f2e7c81bdf9f01067d704afa5a7c4af8feb30d5200b414b968ee0da0cffb7437eaffd3e642aac96

Download Submit
C:\Users\Admin\AppData\Roaming\460B.036

Filesize
996B

MD5
e53813bc0a716158437c4257677265fc

SHA1
b3cfcc387c5ee74fc7dad773047ef6c74a432b51

SHA256
05141f8f18fe712b2c579d80ef15e4ab05e0a4165174828f29d9dd927e4b31ca

SHA512
dbfacf573a9e6f7a142238710469788e95969c18a6b8f7a16f855e7716a31daff25c497929617f809c6a6d87b6347912ecede1cf893ab5f7b2732c76a1c1391a

Download Submit
memory/3008-72-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4904-1-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4904-2-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4904-15-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4904-70-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4904-177-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4904-182-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/5024-12-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/5024-14-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads