cycbot | ae655a7063f9efde72f84bed74065a78f82ba01d1ec5ad9ccf88c686758c45c4

General

Target

JaffaCakes118_12048b510875ae3c3c744244e3f9f09b.exe
Size

181KB
MD5

12048b510875ae3c3c744244e3f9f09b
SHA1

1a34824a81495d2f047e60db180ef07fb5071c1d
SHA256

ae655a7063f9efde72f84bed74065a78f82ba01d1ec5ad9ccf88c686758c45c4
SHA512

eae758a69ccf53c6a795eaf1eba82a3ac5cee118f4ccc22c8cbf25887f0e85b0bd87e8da00ee40457b4e0edcadc71d1554a20dbab97b8f0d37df5c5fea1dea5a
SSDEEP

3072:Oreq4UUt6HvDPIqLf0vF9EDFAO9Z2DAbdhlL7pFHUWVV+dvVsl:D31qDP3LTh9Z2sbdhTUdsl

Score

10^/10

cycbot backdoor discovery 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 4 IoCs

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

resource	yara_rule
behavioral1/memory/1532-15-0x0000000000400000-0x000000000044E000-memory.dmp	family_cycbot
behavioral1/memory/2616-16-0x0000000000400000-0x000000000044E000-memory.dmp	family_cycbot
behavioral1/memory/1976-83-0x0000000000400000-0x000000000044E000-memory.dmp	family_cycbot
behavioral1/memory/2616-187-0x0000000000400000-0x000000000044E000-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

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2616-2-0x0000000000400000-0x000000000044E000-memory.dmp	upx
behavioral1/memory/1532-12-0x0000000000400000-0x000000000044E000-memory.dmp	upx
behavioral1/memory/1532-13-0x0000000000400000-0x000000000044E000-memory.dmp	upx
behavioral1/memory/1532-15-0x0000000000400000-0x000000000044E000-memory.dmp	upx
behavioral1/memory/2616-16-0x0000000000400000-0x000000000044E000-memory.dmp	upx
behavioral1/memory/1976-81-0x0000000000400000-0x000000000044E000-memory.dmp	upx
behavioral1/memory/1976-83-0x0000000000400000-0x000000000044E000-memory.dmp	upx
behavioral1/memory/2616-187-0x0000000000400000-0x000000000044E000-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_12048b510875ae3c3c744244e3f9f09b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_12048b510875ae3c3c744244e3f9f09b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_12048b510875ae3c3c744244e3f9f09b.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2616 wrote to memory of 1532	2616	JaffaCakes118_12048b510875ae3c3c744244e3f9f09b.exe	31
PID 2616 wrote to memory of 1532	2616	JaffaCakes118_12048b510875ae3c3c744244e3f9f09b.exe	31
PID 2616 wrote to memory of 1532	2616	JaffaCakes118_12048b510875ae3c3c744244e3f9f09b.exe	31
PID 2616 wrote to memory of 1532	2616	JaffaCakes118_12048b510875ae3c3c744244e3f9f09b.exe	31
PID 2616 wrote to memory of 1976	2616	JaffaCakes118_12048b510875ae3c3c744244e3f9f09b.exe	33
PID 2616 wrote to memory of 1976	2616	JaffaCakes118_12048b510875ae3c3c744244e3f9f09b.exe	33
PID 2616 wrote to memory of 1976	2616	JaffaCakes118_12048b510875ae3c3c744244e3f9f09b.exe	33
PID 2616 wrote to memory of 1976	2616	JaffaCakes118_12048b510875ae3c3c744244e3f9f09b.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_12048b510875ae3c3c744244e3f9f09b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_12048b510875ae3c3c744244e3f9f09b.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2616
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_12048b510875ae3c3c744244e3f9f09b.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_12048b510875ae3c3c744244e3f9f09b.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1532
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_12048b510875ae3c3c744244e3f9f09b.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_12048b510875ae3c3c744244e3f9f09b.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1976

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\3E98.437

Filesize
1KB

MD5
4f89f796e19049191eac5bb2007ed676

SHA1
b1ac387eb97a2439ab3332007b35ad9297159d66

SHA256
79e2672846a83ec56f1deaee82588e60fa263538ae3d96ee2f72c2657af884d4

SHA512
c685d81eeaac2b3eec0b7aae4b60a494fe78f78ca028d33badd8f5914c184fe724647aa74f20f7f56f9cff7e23b7c848c22c9df2acea09dfd89ac351d9be61ba

Download Submit
C:\Users\Admin\AppData\Roaming\3E98.437

Filesize
600B

MD5
9b3be3d72ab0e0d5ac199b6a1dfb1797

SHA1
d8741a4a4b7bb5554d6cc33f1632a39a995adb81

SHA256
16b6723007085ad0117d8907196a4b6c0d2b1fd83ddfc4ea28c7029d36ec5f98

SHA512
38a6a658e318e22e28de6f6f61b5898cfa856531306ea0637a0951f42c2e7031f7b11fcbae38bf2b6ec8a7f6547f0b93ce93bd66b2b6a9cc1d393d0c63470494

Download Submit
C:\Users\Admin\AppData\Roaming\3E98.437

Filesize
996B

MD5
bc10f733e733c4431fa9ddbe818beef1

SHA1
77bfe8e7f6ad30bacbfe1a3ba7e11372ac62b658

SHA256
147eeed3498db013b7929303265ecdba98e73a19ccc97436f8506e2429519123

SHA512
052d3e5b8606895c983fcdaff87569cb3cb695cb5f695ce297f4041bceae3715bb5d09ffcadc156b2d7228b8a045a40ea40e385e133ee4c04b17875702a5544a

Download Submit
memory/1532-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1532-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1532-15-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1976-81-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1976-83-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2616-1-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2616-2-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2616-16-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2616-187-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

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