cycbot | 691500c0c35428fc9129a6fa731ff04be50e07091bc1e5141533e6b68760d2b3

General

Target

JaffaCakes118_7f52f796ddf5cdd2a86d2d036fc70304.exe
Size

200KB
MD5

7f52f796ddf5cdd2a86d2d036fc70304
SHA1

06f73ff2fc2df4d78a1c17831c350183773f8299
SHA256

691500c0c35428fc9129a6fa731ff04be50e07091bc1e5141533e6b68760d2b3
SHA512

06f0c9c4ec89f491e18421efc108b9989fee93eaa1927ca00337f0fb454042a0f54841b98c7f64bcb21ac3f4bbe9234ca4473c9f9b909cd6f0a4ace94c2c6ee4
SSDEEP

6144:18YTDg9t8RNT8e553ilqkSraOp8ClrtxSqrD:1s9t8TpeDJO7lRQk

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 7 IoCs

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

resource	yara_rule
behavioral1/memory/2452-7-0x0000000000400000-0x000000000048C000-memory.dmp	family_cycbot
behavioral1/memory/2452-8-0x0000000000400000-0x000000000048C000-memory.dmp	family_cycbot
behavioral1/memory/2036-16-0x0000000000400000-0x000000000048C000-memory.dmp	family_cycbot
behavioral1/memory/1128-85-0x0000000000400000-0x000000000048C000-memory.dmp	family_cycbot
behavioral1/memory/1128-84-0x0000000000400000-0x000000000048C000-memory.dmp	family_cycbot
behavioral1/memory/2036-86-0x0000000000400000-0x000000000048C000-memory.dmp	family_cycbot
behavioral1/memory/2036-183-0x0000000000400000-0x000000000048C000-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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\dwm.exe"	JaffaCakes118_7f52f796ddf5cdd2a86d2d036fc70304.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 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2036-2-0x0000000000400000-0x000000000048C000-memory.dmp	upx
behavioral1/memory/2452-7-0x0000000000400000-0x000000000048C000-memory.dmp	upx
behavioral1/memory/2452-8-0x0000000000400000-0x000000000048C000-memory.dmp	upx
behavioral1/memory/2036-16-0x0000000000400000-0x000000000048C000-memory.dmp	upx
behavioral1/memory/1128-85-0x0000000000400000-0x000000000048C000-memory.dmp	upx
behavioral1/memory/1128-84-0x0000000000400000-0x000000000048C000-memory.dmp	upx
behavioral1/memory/2036-86-0x0000000000400000-0x000000000048C000-memory.dmp	upx
behavioral1/memory/2036-183-0x0000000000400000-0x000000000048C000-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_7f52f796ddf5cdd2a86d2d036fc70304.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7f52f796ddf5cdd2a86d2d036fc70304.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7f52f796ddf5cdd2a86d2d036fc70304.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2036 wrote to memory of 2452	2036	JaffaCakes118_7f52f796ddf5cdd2a86d2d036fc70304.exe	31
PID 2036 wrote to memory of 2452	2036	JaffaCakes118_7f52f796ddf5cdd2a86d2d036fc70304.exe	31
PID 2036 wrote to memory of 2452	2036	JaffaCakes118_7f52f796ddf5cdd2a86d2d036fc70304.exe	31
PID 2036 wrote to memory of 2452	2036	JaffaCakes118_7f52f796ddf5cdd2a86d2d036fc70304.exe	31
PID 2036 wrote to memory of 1128	2036	JaffaCakes118_7f52f796ddf5cdd2a86d2d036fc70304.exe	33
PID 2036 wrote to memory of 1128	2036	JaffaCakes118_7f52f796ddf5cdd2a86d2d036fc70304.exe	33
PID 2036 wrote to memory of 1128	2036	JaffaCakes118_7f52f796ddf5cdd2a86d2d036fc70304.exe	33
PID 2036 wrote to memory of 1128	2036	JaffaCakes118_7f52f796ddf5cdd2a86d2d036fc70304.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7f52f796ddf5cdd2a86d2d036fc70304.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7f52f796ddf5cdd2a86d2d036fc70304.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2036
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7f52f796ddf5cdd2a86d2d036fc70304.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7f52f796ddf5cdd2a86d2d036fc70304.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2452
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7f52f796ddf5cdd2a86d2d036fc70304.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7f52f796ddf5cdd2a86d2d036fc70304.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1128

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\09C1.781

Filesize
1KB

MD5
df97a62eb0b1120485053071e55f8d89

SHA1
3fe2c5d760877255833ac4d3ecec210888b6f9fd

SHA256
d75d3cd86576acee9ae322e03a50bbbdbd055c300ce17309c5f7a70c354fa592

SHA512
f7fc07dddf4c8136267c2894fc6996ff5cfa07a36aed4a2425a9047a947c63dcdcb3765a7ce9b31a2bd4af629fef6d8d54910b031a278a406c7668694d0e006c

Download Submit
C:\Users\Admin\AppData\Roaming\09C1.781

Filesize
600B

MD5
31a376298046bf4d815c3785f43794f3

SHA1
8ee07b334e2765414e61885cf1075e0d2d939b07

SHA256
12acf7138349b327f433ea6c7c04d30c5f06f5165638db37f9f7402994d52183

SHA512
523cf253c2df6de3aa39398c2dd8b64a64b6f6c70ad9412af59222e414bb7b911084b1b07ef3c61aa5e0ee16c07af14557597745faed2df5a7d9d0f66b4e276a

Download Submit
C:\Users\Admin\AppData\Roaming\09C1.781

Filesize
996B

MD5
7b4af326dfc35d2358abd28343350492

SHA1
749a3b163211d19f07780a5fbc400cc6cbd92b8e

SHA256
bf948b8d9ba071b2e59ff41f04427694c2f34aa5bedfb7d21caa6c1aec92fe52

SHA512
8e6b5d4ac7d977f080d4df9abdd5f627571494977e78a879a8d95910f82a9cf59a4218cca38641cea636c020cc6ae62350588980afda75257c0859de7505aa99

Download Submit
memory/1128-84-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/1128-85-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/2036-16-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/2036-1-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/2036-86-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/2036-2-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/2036-183-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/2452-8-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/2452-7-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download
memory/2452-5-0x0000000000400000-0x000000000048C000-memory.dmp

Filesize
560KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads