cycbot | 69d353e51b6670af251cd9ae4f63a1562ea1d15c93d87cfb68ec2dc74465ceff

General

Target

JaffaCakes118_28a4ff439567acdcb7edf44dfce76b64.exe
Size

167KB
MD5

28a4ff439567acdcb7edf44dfce76b64
SHA1

69efb46b74cee2a413e430040b04381d5dc08596
SHA256

69d353e51b6670af251cd9ae4f63a1562ea1d15c93d87cfb68ec2dc74465ceff
SHA512

1f9dad360f79f47bd638e90f9577e225de081e8dba8479e939636e41cb159c5e630b33057c554c2c0be5edefafcc3d82d4e38c70f7fc5c2c49a3a4a572077cab
SSDEEP

3072:3LMfUkXbpteqoAM8I72E3Pbl5a161RbzbzLvcxXnrOvoz1BALtABzAW6Bl/OZ:7WX1tLIS+Du6zbvchrOvaoiMtBlW

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/740-7-0x0000000000400000-0x000000000043E000-memory.dmp	family_cycbot
behavioral1/memory/1440-17-0x0000000000400000-0x000000000043E000-memory.dmp	family_cycbot
behavioral1/memory/1476-90-0x0000000000400000-0x000000000043E000-memory.dmp	family_cycbot
behavioral1/memory/1440-91-0x0000000000400000-0x000000000043E000-memory.dmp	family_cycbot
behavioral1/memory/1440-184-0x0000000000400000-0x000000000043E000-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_28a4ff439567acdcb7edf44dfce76b64.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1440-2-0x0000000000400000-0x000000000043E000-memory.dmp	upx
behavioral1/memory/740-6-0x0000000000400000-0x000000000043E000-memory.dmp	upx
behavioral1/memory/740-7-0x0000000000400000-0x000000000043E000-memory.dmp	upx
behavioral1/memory/1440-17-0x0000000000400000-0x000000000043E000-memory.dmp	upx
behavioral1/memory/1476-89-0x0000000000400000-0x000000000043E000-memory.dmp	upx
behavioral1/memory/1476-90-0x0000000000400000-0x000000000043E000-memory.dmp	upx
behavioral1/memory/1440-91-0x0000000000400000-0x000000000043E000-memory.dmp	upx
behavioral1/memory/1440-184-0x0000000000400000-0x000000000043E000-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_28a4ff439567acdcb7edf44dfce76b64.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_28a4ff439567acdcb7edf44dfce76b64.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_28a4ff439567acdcb7edf44dfce76b64.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1440 wrote to memory of 740	1440	JaffaCakes118_28a4ff439567acdcb7edf44dfce76b64.exe	30
PID 1440 wrote to memory of 740	1440	JaffaCakes118_28a4ff439567acdcb7edf44dfce76b64.exe	30
PID 1440 wrote to memory of 740	1440	JaffaCakes118_28a4ff439567acdcb7edf44dfce76b64.exe	30
PID 1440 wrote to memory of 740	1440	JaffaCakes118_28a4ff439567acdcb7edf44dfce76b64.exe	30
PID 1440 wrote to memory of 1476	1440	JaffaCakes118_28a4ff439567acdcb7edf44dfce76b64.exe	33
PID 1440 wrote to memory of 1476	1440	JaffaCakes118_28a4ff439567acdcb7edf44dfce76b64.exe	33
PID 1440 wrote to memory of 1476	1440	JaffaCakes118_28a4ff439567acdcb7edf44dfce76b64.exe	33
PID 1440 wrote to memory of 1476	1440	JaffaCakes118_28a4ff439567acdcb7edf44dfce76b64.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_28a4ff439567acdcb7edf44dfce76b64.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_28a4ff439567acdcb7edf44dfce76b64.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1440
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_28a4ff439567acdcb7edf44dfce76b64.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_28a4ff439567acdcb7edf44dfce76b64.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:740
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_28a4ff439567acdcb7edf44dfce76b64.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_28a4ff439567acdcb7edf44dfce76b64.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1476

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\AC08.890

Filesize
597B

MD5
46a87d90fb7095d718577f01b5f09abc

SHA1
17d42158186f96e39f650f3fffd844569d34126f

SHA256
f5b7a720bfbdbc3eae4cd1c7761af3b1600d4e707f24d6641f1752d6c8550ab9

SHA512
5505a40fa2990b2fd6c25629c08e0434d843882a00eb1b03617744f750c96fc602fe51d5ec5d9790a86d54dd7ffb7c81badb7489a120397da3609f6c504ff0aa

Download Submit
C:\Users\Admin\AppData\Roaming\AC08.890

Filesize
1KB

MD5
e64494e92c0a2aeb12062948cc7b85e8

SHA1
e95955fb50ddc89a6a5a224f4492ece73bf228dc

SHA256
2a6bff2cfd6c0eb27bab1e031d2837e7408ee4e9e32ff89f5ffe1757699cc5ad

SHA512
2e4ec1c2624f3ac8e5e76a3d0f51dbe94621cde6f5913c9a356de51d7b092ead478e1064764a757a07dd3fc04886b47f0a1b88293f87c919416f5e1bf6794cff

Download Submit
C:\Users\Admin\AppData\Roaming\AC08.890

Filesize
897B

MD5
10055bf9fe4478b272087968a23c2f8e

SHA1
69a69a74123d4e0767df8fa8ce280ff3819f2d60

SHA256
3f58f1b02dbd6a322fc83512d0940df798f5eb21f3df03ffc817c38cb0138d5e

SHA512
ac50c1350b8e32c4a2c71137cb4f4313145a2e714bd5a34a14bc027c7af4c350d61b5b06e3dd3468c6c12dc7e579f6e476ad2b6aaedb3d9ec8efa07903e712db

Download Submit
C:\Users\Admin\AppData\Roaming\AC08.890

Filesize
1KB

MD5
341ce98623f841e618cbda0096f66e51

SHA1
9b14189320583ac4c72c7820457fd468b2ff2eb5

SHA256
01553c5e0d6c3b172a9d2097a52e0b13f87fd2a3140ef5b2db6898b4a6f2e417

SHA512
3818a7555b18fa885972232a0c2e317af8cb82ad28a9b9fee00bce02fef826e2675fd8842ac1745747cbe0e98a0c96f91da17f20e77dd4143e37569fdde255a4

Download Submit
memory/740-7-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/740-6-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/1440-17-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/1440-1-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/1440-91-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/1440-2-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/1440-184-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/1476-89-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/1476-90-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads