cycbot | 4e644b128a71282f5b8fb048f76bad571129bc8001a38ac5aafab1043fd69e3d

General

Target

JaffaCakes118_6b0b3dd56fab03cde50f1e5f0ef83a8a.exe
Size

188KB
MD5

6b0b3dd56fab03cde50f1e5f0ef83a8a
SHA1

cf621596ee2595ae6ad39cb630462e50d08716f1
SHA256

4e644b128a71282f5b8fb048f76bad571129bc8001a38ac5aafab1043fd69e3d
SHA512

b6115da8239eadd71ffa68cbaf90104521a0a95ceeeb67ccdd77cb831de8b42457f67488508ff51615b345574032cac4e021c919b8360d04af0522db71252662
SSDEEP

3072:VOYG9vqBBZM3F7zFetXw6ttCPFs7toHBK7g7v6On6:VOYoaBZERUgktCK54GgW

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/2152-6-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2376-14-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2308-80-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2376-81-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2376-187-0x0000000000400000-0x0000000000445000-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_6b0b3dd56fab03cde50f1e5f0ef83a8a.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2376-2-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2152-5-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2152-6-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2376-14-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2308-79-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2308-80-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2376-81-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2376-187-0x0000000000400000-0x0000000000445000-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_6b0b3dd56fab03cde50f1e5f0ef83a8a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6b0b3dd56fab03cde50f1e5f0ef83a8a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6b0b3dd56fab03cde50f1e5f0ef83a8a.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2376 wrote to memory of 2152	2376	JaffaCakes118_6b0b3dd56fab03cde50f1e5f0ef83a8a.exe	30
PID 2376 wrote to memory of 2152	2376	JaffaCakes118_6b0b3dd56fab03cde50f1e5f0ef83a8a.exe	30
PID 2376 wrote to memory of 2152	2376	JaffaCakes118_6b0b3dd56fab03cde50f1e5f0ef83a8a.exe	30
PID 2376 wrote to memory of 2152	2376	JaffaCakes118_6b0b3dd56fab03cde50f1e5f0ef83a8a.exe	30
PID 2376 wrote to memory of 2308	2376	JaffaCakes118_6b0b3dd56fab03cde50f1e5f0ef83a8a.exe	32
PID 2376 wrote to memory of 2308	2376	JaffaCakes118_6b0b3dd56fab03cde50f1e5f0ef83a8a.exe	32
PID 2376 wrote to memory of 2308	2376	JaffaCakes118_6b0b3dd56fab03cde50f1e5f0ef83a8a.exe	32
PID 2376 wrote to memory of 2308	2376	JaffaCakes118_6b0b3dd56fab03cde50f1e5f0ef83a8a.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6b0b3dd56fab03cde50f1e5f0ef83a8a.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6b0b3dd56fab03cde50f1e5f0ef83a8a.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2376
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6b0b3dd56fab03cde50f1e5f0ef83a8a.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6b0b3dd56fab03cde50f1e5f0ef83a8a.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2152
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6b0b3dd56fab03cde50f1e5f0ef83a8a.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6b0b3dd56fab03cde50f1e5f0ef83a8a.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2308

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\4074.BBB

Filesize
1KB

MD5
ea4cefd9f2abe811af4a29bf41455bcd

SHA1
b22032d7b95211212616e04d0113364a32c7fe8b

SHA256
6fdd996be466a7f0badc7956b8b561858576c23dda20de78e92e3b0a4893254c

SHA512
5a8dc7b219c1383b2da01c0a789bb944b3bab93a192d50e5bab070ed29fca37ddaff5a00da7a4ca94125bbbc0ac35295f5261780aa61f2346f1ae9d6c93db637

Download Submit
C:\Users\Admin\AppData\Roaming\4074.BBB

Filesize
600B

MD5
1fb1163084b702b0932463139392890c

SHA1
592b711488901122eecd948115abfcd4cf99779e

SHA256
c73dc44f0c434ec54e8b285bffd38ba1c84c44ccf9cd82459c11558cedfe93f0

SHA512
7e3fd3d88a8feb4713698a7b403362b791fcc37fd218d9969e9ba48f612aebfeef57906c2f3f95a315fa9ae2a39f612e79510f8b6d6a5aca426a0b8434ffdf57

Download Submit
C:\Users\Admin\AppData\Roaming\4074.BBB

Filesize
996B

MD5
a56c89b25f4bfb19dd5f5a016211be54

SHA1
9871510e8ea443fb534fc7cb34ab7f1fb0e3f6ab

SHA256
0489ea669a23a8b46c5b9dac4766a04d38d4fbf84b9f367f19a28ecac14d6277

SHA512
c8670c65390fae4eed515d68b256b0909caba237c0c37a1984a96f69faca738b6ac6a27b8dfcd7ca30c18870505d4077d95591ad1197a4a608c01c3902903ab5

Download Submit
memory/2152-5-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2152-6-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2308-79-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2308-80-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2376-1-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2376-2-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2376-14-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2376-81-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2376-187-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads