cycbot | a42cab05e3de77a326b30ec52fd873bbff69c2ae0b3eadcc655786ed359a4110

General

Target

JaffaCakes118_1ed48ba3fed158709bd80e741bc3907a.exe
Size

176KB
MD5

1ed48ba3fed158709bd80e741bc3907a
SHA1

adfb55e8a3fbd42fcbc67e5949c0738a803ce84d
SHA256

a42cab05e3de77a326b30ec52fd873bbff69c2ae0b3eadcc655786ed359a4110
SHA512

f33ee58afc178b9b73c5e08ffa9f67994875548cc9fdadb84653573a80a864cd60bd6ef01281cc7992049ea1ef798f8cda46468b1f7bd593723bfa9680e1782f
SSDEEP

3072:Vvre8ePeZj/xnHo9Y1mR2CAQZLigG3IaXfekoFSiK79Ov3yfapJJMW:8PeZj/xnI9Y1fOc3IIfeRDOgv3+K

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 5 IoCs

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

resource	yara_rule
behavioral1/memory/2352-5-0x0000000000400000-0x0000000000463000-memory.dmp	family_cycbot
behavioral1/memory/2392-12-0x0000000000400000-0x0000000000463000-memory.dmp	family_cycbot
behavioral1/memory/2164-68-0x0000000000400000-0x0000000000463000-memory.dmp	family_cycbot
behavioral1/memory/2392-160-0x0000000000400000-0x0000000000463000-memory.dmp	family_cycbot
behavioral1/memory/2392-201-0x0000000000400000-0x0000000000463000-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 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2392-2-0x0000000000400000-0x0000000000463000-memory.dmp	upx
behavioral1/memory/2352-5-0x0000000000400000-0x0000000000463000-memory.dmp	upx
behavioral1/memory/2392-12-0x0000000000400000-0x0000000000463000-memory.dmp	upx
behavioral1/memory/2164-66-0x0000000000400000-0x0000000000463000-memory.dmp	upx
behavioral1/memory/2164-68-0x0000000000400000-0x0000000000463000-memory.dmp	upx
behavioral1/memory/2392-160-0x0000000000400000-0x0000000000463000-memory.dmp	upx
behavioral1/memory/2392-201-0x0000000000400000-0x0000000000463000-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_1ed48ba3fed158709bd80e741bc3907a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1ed48ba3fed158709bd80e741bc3907a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1ed48ba3fed158709bd80e741bc3907a.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2392 wrote to memory of 2352	2392	JaffaCakes118_1ed48ba3fed158709bd80e741bc3907a.exe	30
PID 2392 wrote to memory of 2352	2392	JaffaCakes118_1ed48ba3fed158709bd80e741bc3907a.exe	30
PID 2392 wrote to memory of 2352	2392	JaffaCakes118_1ed48ba3fed158709bd80e741bc3907a.exe	30
PID 2392 wrote to memory of 2352	2392	JaffaCakes118_1ed48ba3fed158709bd80e741bc3907a.exe	30
PID 2392 wrote to memory of 2164	2392	JaffaCakes118_1ed48ba3fed158709bd80e741bc3907a.exe	33
PID 2392 wrote to memory of 2164	2392	JaffaCakes118_1ed48ba3fed158709bd80e741bc3907a.exe	33
PID 2392 wrote to memory of 2164	2392	JaffaCakes118_1ed48ba3fed158709bd80e741bc3907a.exe	33
PID 2392 wrote to memory of 2164	2392	JaffaCakes118_1ed48ba3fed158709bd80e741bc3907a.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1ed48ba3fed158709bd80e741bc3907a.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1ed48ba3fed158709bd80e741bc3907a.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2392
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1ed48ba3fed158709bd80e741bc3907a.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1ed48ba3fed158709bd80e741bc3907a.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2352
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1ed48ba3fed158709bd80e741bc3907a.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1ed48ba3fed158709bd80e741bc3907a.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2164

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\4FE1.758

Filesize
1KB

MD5
364f000547c7bfc8ec374d49b26a3aea

SHA1
6efd8ff9279bbcdf9f7d4f9da8de389d270a20cc

SHA256
b26e881ed9f4e8bd9a2a07385f7aa9f7a4f057c15ff2d99f4ac40acb1be7be0a

SHA512
75b41986a511c7c7e083bb51bd3b2a5986908c8c2be0dd51f289ddee789a4b1b1c3485804ff852ccbc9eea59f0a6e65d40887f9c27712e012ae7d3a6f5770442

Download Submit
C:\Users\Admin\AppData\Roaming\4FE1.758

Filesize
600B

MD5
c47c778b6a72b3f4e2447118350bfc7c

SHA1
6ef06555e76cb7b03d5b12649d9d8a691bda5ad0

SHA256
1b08bf454836c3a35aac6454d06c83039468d3ca784cd2a4a4e28d60e24ed9ae

SHA512
fc999b67c176f957fbf5893a7ebc476562af03e9705ffc5897195943750c4d27fb1bdae71acf2621ff5d56ae630ddfb3c041e0d92a85a9f94c463b7b9e61bae3

Download Submit
C:\Users\Admin\AppData\Roaming\4FE1.758

Filesize
996B

MD5
dc23cdb98aaabd60470c9a4a8a8dc49c

SHA1
1cb2a6caa342697084137f07371cc9fed48b0beb

SHA256
20ff3d98d42fe8efc8c9a969b38e3d9e51d6e47c507552432ae2c4808ebb8861

SHA512
95a2f93b7a9087c46e4266945c1aa6e2c758eb56326280a3fb8acfbe58b334f1c4f4cc04285ce60917e267877c44d704b5bad598fca7229f2d8e12d2fde6a0e1

Download Submit
memory/2164-66-0x0000000000400000-0x0000000000463000-memory.dmp

Filesize
396KB

Download
memory/2164-68-0x0000000000400000-0x0000000000463000-memory.dmp

Filesize
396KB

Download
memory/2352-5-0x0000000000400000-0x0000000000463000-memory.dmp

Filesize
396KB

Download
memory/2392-1-0x0000000000400000-0x0000000000463000-memory.dmp

Filesize
396KB

Download
memory/2392-2-0x0000000000400000-0x0000000000463000-memory.dmp

Filesize
396KB

Download
memory/2392-12-0x0000000000400000-0x0000000000463000-memory.dmp

Filesize
396KB

Download
memory/2392-160-0x0000000000400000-0x0000000000463000-memory.dmp

Filesize
396KB

Download
memory/2392-201-0x0000000000400000-0x0000000000463000-memory.dmp

Filesize
396KB

Download

Analysis

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