cycbot | 4d2446f38afde87f4612280dca26dba96d9bfb053b0e279f37de37b760c376aa

General

Target

JaffaCakes118_a9c3788bc20fcb8bdfd08fbf5f5d1ac0.exe
Size

157KB
MD5

a9c3788bc20fcb8bdfd08fbf5f5d1ac0
SHA1

e03d31663d8025891e2a5796b501e4e5bc8da736
SHA256

4d2446f38afde87f4612280dca26dba96d9bfb053b0e279f37de37b760c376aa
SHA512

6b31d01c2786b000929e3b851b22e36070b5c926f6661aa4fb5939190597d6a74028db1da73cf5e2ba93c0333e199a7c191dad3dedd37695b82d3e5cdbcfedc8
SSDEEP

3072:joWSnw50VEm4RpccVQTW+lSdyjvY00npX22bRRijKYF:jini0VEm4ceQqAw6YvnpjbPY

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 6 IoCs

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

resource	yara_rule
behavioral1/memory/2968-7-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2296-15-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2296-78-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2992-80-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2296-150-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2296-184-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot

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

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_a9c3788bc20fcb8bdfd08fbf5f5d1ac0.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2296-2-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2968-5-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2968-7-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2296-15-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2296-78-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2992-80-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2296-150-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2296-184-0x0000000000400000-0x0000000000442000-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_a9c3788bc20fcb8bdfd08fbf5f5d1ac0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_a9c3788bc20fcb8bdfd08fbf5f5d1ac0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_a9c3788bc20fcb8bdfd08fbf5f5d1ac0.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2296 wrote to memory of 2968	2296	JaffaCakes118_a9c3788bc20fcb8bdfd08fbf5f5d1ac0.exe	31
PID 2296 wrote to memory of 2968	2296	JaffaCakes118_a9c3788bc20fcb8bdfd08fbf5f5d1ac0.exe	31
PID 2296 wrote to memory of 2968	2296	JaffaCakes118_a9c3788bc20fcb8bdfd08fbf5f5d1ac0.exe	31
PID 2296 wrote to memory of 2968	2296	JaffaCakes118_a9c3788bc20fcb8bdfd08fbf5f5d1ac0.exe	31
PID 2296 wrote to memory of 2992	2296	JaffaCakes118_a9c3788bc20fcb8bdfd08fbf5f5d1ac0.exe	33
PID 2296 wrote to memory of 2992	2296	JaffaCakes118_a9c3788bc20fcb8bdfd08fbf5f5d1ac0.exe	33
PID 2296 wrote to memory of 2992	2296	JaffaCakes118_a9c3788bc20fcb8bdfd08fbf5f5d1ac0.exe	33
PID 2296 wrote to memory of 2992	2296	JaffaCakes118_a9c3788bc20fcb8bdfd08fbf5f5d1ac0.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a9c3788bc20fcb8bdfd08fbf5f5d1ac0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a9c3788bc20fcb8bdfd08fbf5f5d1ac0.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2296
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a9c3788bc20fcb8bdfd08fbf5f5d1ac0.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a9c3788bc20fcb8bdfd08fbf5f5d1ac0.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2968
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a9c3788bc20fcb8bdfd08fbf5f5d1ac0.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a9c3788bc20fcb8bdfd08fbf5f5d1ac0.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2992

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

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\E5AB.012

Filesize
600B

MD5
a6abf9053b9d5eee3f8dbf07f9f0ca6a

SHA1
0dd736623d4fe752d733e2e7a44a6aac3647d01b

SHA256
25fc57540daf5942e8f3559e98a9d399696622943b22978fd2c50b616549c3e3

SHA512
79f08f5831923b4c2a26dd24e0927cc0c3d7953f99ec7f3f0e2a3fcf42de93cee636096f18068ae85c711b3ff07e312333250910d755c4ec5d5fb1946f1ff4eb

Download Submit
C:\Users\Admin\AppData\Roaming\E5AB.012

Filesize
1KB

MD5
86436ca899902ee27e061c210043b91d

SHA1
f37c97093c3bf06651e6e28f83f00bd19ebcc2ac

SHA256
8a934b7e755fb059bd917763de2324e6acad5efce9f7ffaed84ddbc40ded3e3b

SHA512
0c7a29ea1e354d8b8f63618718522015d5554ee6e0aeae7b533ae98e347c60c907791cc36b2fd93d82d28a1ac6d9fce6d846b22e36472bfc31ce14658031061c

Download Submit
C:\Users\Admin\AppData\Roaming\E5AB.012

Filesize
996B

MD5
802136d53b38a6026fc2c7604309b5ff

SHA1
f3010541805e8f34290f0eea31ad507c654528f5

SHA256
5de12a19519036a25350c8bd61a99c93ef17077f85270cda013fd4b72b426bf7

SHA512
a399606690cdf291da3393f0eeaefe33d07bed233764270031a6fc42f8dd38bc8fdda7e93d6b733c0a0397bdc7cb0e14d654c1455a18839e01c467bae07ba016

Download Submit
memory/2296-1-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2296-2-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2296-15-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2296-78-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2296-150-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2296-184-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2968-5-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2968-7-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2992-80-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads