cycbot | 12c681c995df3ee0ebfa932a476a813e3d76ea6c67a564b09700431eae28cc38

General

Target

f9194b7e3c5e757d70512c16c6e5905c_JaffaCakes118.exe
Size

172KB
MD5

f9194b7e3c5e757d70512c16c6e5905c
SHA1

6dd3fba556e8c9b9671878c137c1a437b036b685
SHA256

12c681c995df3ee0ebfa932a476a813e3d76ea6c67a564b09700431eae28cc38
SHA512

516fd7035937d59690a07c28fdab8748e882dc410e62c884b76782678fc7a493c7560bf327d3f3e0a28201a5a1f05d5001555765d2c2df6df71192d84bca57b7
SSDEEP

3072:97p4RD9L54Gj+Zz/RKQq3niuwI0UD1U4w7ejvTYxD/PcLJWA:RS19yxVpKQ6z1U4w8TYxzH

Score

10^/10

cycbot backdoor discovery persistence rat 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
behavioral2/memory/3304-12-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/4412-13-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/4412-72-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/2416-76-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/4412-184-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot

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"	f9194b7e3c5e757d70512c16c6e5905c_JaffaCakes118.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4412-1-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/3304-12-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/4412-13-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/4412-72-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/2416-75-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/2416-76-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/4412-184-0x0000000000400000-0x0000000000445000-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	f9194b7e3c5e757d70512c16c6e5905c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f9194b7e3c5e757d70512c16c6e5905c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f9194b7e3c5e757d70512c16c6e5905c_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4412 wrote to memory of 3304	4412	f9194b7e3c5e757d70512c16c6e5905c_JaffaCakes118.exe	83
PID 4412 wrote to memory of 3304	4412	f9194b7e3c5e757d70512c16c6e5905c_JaffaCakes118.exe	83
PID 4412 wrote to memory of 3304	4412	f9194b7e3c5e757d70512c16c6e5905c_JaffaCakes118.exe	83
PID 4412 wrote to memory of 2416	4412	f9194b7e3c5e757d70512c16c6e5905c_JaffaCakes118.exe	85
PID 4412 wrote to memory of 2416	4412	f9194b7e3c5e757d70512c16c6e5905c_JaffaCakes118.exe	85
PID 4412 wrote to memory of 2416	4412	f9194b7e3c5e757d70512c16c6e5905c_JaffaCakes118.exe	85

C:\Users\Admin\AppData\Local\Temp\f9194b7e3c5e757d70512c16c6e5905c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f9194b7e3c5e757d70512c16c6e5905c_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4412
- C:\Users\Admin\AppData\Local\Temp\f9194b7e3c5e757d70512c16c6e5905c_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f9194b7e3c5e757d70512c16c6e5905c_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3304
- C:\Users\Admin\AppData\Local\Temp\f9194b7e3c5e757d70512c16c6e5905c_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f9194b7e3c5e757d70512c16c6e5905c_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2416

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

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\A8D6.D4E

Filesize
1KB

MD5
98fdf901a2d4f3ac1900fea93ffff011

SHA1
7a72b347bc9d906e110b82213793e10e3c2565cd

SHA256
bea4311fd280e0a1af458978c2332bf9db2d783e13243594a70ff9297b3ce103

SHA512
8fecbcb0df0aeacbcc9c4a4ba0190bebc54d938be04d6992f0d601617137ec531f9b6fe2a3060a0637bc1e3fe28a5254e6982272bccdb8e0a327ae357669d59e

Download Submit
C:\Users\Admin\AppData\Roaming\A8D6.D4E

Filesize
600B

MD5
30efc63ae2a26c1c041cc79b0fe6eba7

SHA1
28cffbfede1d93bb2958b14cc27813b082d7bc51

SHA256
077c6cee354cde03c726ad4f21a1e4cb7eee8abd0a40d1e240e63bcaf13c43bb

SHA512
3aff41ae6bfc8ade71f7610c74f08395258efbf0cf89b9c2d554692f19b652348e3df9e46529ca54469e33b268209d8e29beaa591c213efd62917f5ea83458c8

Download Submit
C:\Users\Admin\AppData\Roaming\A8D6.D4E

Filesize
996B

MD5
ef578afa36a9bc7eb1cc2a5fd7f75763

SHA1
95c816e716eabd9e9ffe6e9db4a80abd28c2582b

SHA256
1a5847cef43c86e52d95b5dc5d69c6c74443a284a26c1fc755bd336a3e1fc309

SHA512
dbffe965158dd064e185be86b7f04d27a3f47a9f9180ac90f35a6b52ff428381cf355cac6279a723099df1f2f87bf0185b3e22acbf21693c94df2f3af1ca2d14

Download Submit
memory/2416-75-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2416-74-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2416-76-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/3304-12-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4412-1-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4412-13-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4412-72-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4412-184-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads