cycbot | 6723e2105e8f015634d802495b04e871bdacacb08faa0faf68eda0bb235b565d

General

Target

6723e2105e8f015634d802495b04e871bdacacb08faa0faf68eda0bb235b565dN.exe
Size

164KB
MD5

ff03531ad8c83399ce5fc9f96c883e70
SHA1

ccf7eb9e44bb5b95f732c4dcef87760ded5184cd
SHA256

6723e2105e8f015634d802495b04e871bdacacb08faa0faf68eda0bb235b565d
SHA512

0e806b078053fb3e76fe87ab5c52d270ba3d27307bedb28cb6f5684c1d04fc504e155a1811bcc6910cadb0e1f98cb753bceaa54d6e023e6de3cdb94bc30b59b6
SSDEEP

3072:Nq2QaPFCJm5y/MC/ikf4jNDAL0nAftn6s4GAS:NJPF7kMCfM1AeAft6L

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/1424-10-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2460-15-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/3036-80-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2460-81-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2460-197-0x0000000000400000-0x0000000000445000-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"	6723e2105e8f015634d802495b04e871bdacacb08faa0faf68eda0bb235b565dN.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2460-2-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/1424-8-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/1424-10-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2460-15-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/3036-80-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2460-81-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2460-197-0x0000000000400000-0x0000000000445000-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	6723e2105e8f015634d802495b04e871bdacacb08faa0faf68eda0bb235b565dN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6723e2105e8f015634d802495b04e871bdacacb08faa0faf68eda0bb235b565dN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6723e2105e8f015634d802495b04e871bdacacb08faa0faf68eda0bb235b565dN.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2460 wrote to memory of 1424	2460	6723e2105e8f015634d802495b04e871bdacacb08faa0faf68eda0bb235b565dN.exe	31
PID 2460 wrote to memory of 1424	2460	6723e2105e8f015634d802495b04e871bdacacb08faa0faf68eda0bb235b565dN.exe	31
PID 2460 wrote to memory of 1424	2460	6723e2105e8f015634d802495b04e871bdacacb08faa0faf68eda0bb235b565dN.exe	31
PID 2460 wrote to memory of 1424	2460	6723e2105e8f015634d802495b04e871bdacacb08faa0faf68eda0bb235b565dN.exe	31
PID 2460 wrote to memory of 3036	2460	6723e2105e8f015634d802495b04e871bdacacb08faa0faf68eda0bb235b565dN.exe	33
PID 2460 wrote to memory of 3036	2460	6723e2105e8f015634d802495b04e871bdacacb08faa0faf68eda0bb235b565dN.exe	33
PID 2460 wrote to memory of 3036	2460	6723e2105e8f015634d802495b04e871bdacacb08faa0faf68eda0bb235b565dN.exe	33
PID 2460 wrote to memory of 3036	2460	6723e2105e8f015634d802495b04e871bdacacb08faa0faf68eda0bb235b565dN.exe	33

C:\Users\Admin\AppData\Local\Temp\6723e2105e8f015634d802495b04e871bdacacb08faa0faf68eda0bb235b565dN.exe
"C:\Users\Admin\AppData\Local\Temp\6723e2105e8f015634d802495b04e871bdacacb08faa0faf68eda0bb235b565dN.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2460
- C:\Users\Admin\AppData\Local\Temp\6723e2105e8f015634d802495b04e871bdacacb08faa0faf68eda0bb235b565dN.exe
  C:\Users\Admin\AppData\Local\Temp\6723e2105e8f015634d802495b04e871bdacacb08faa0faf68eda0bb235b565dN.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1424
- C:\Users\Admin\AppData\Local\Temp\6723e2105e8f015634d802495b04e871bdacacb08faa0faf68eda0bb235b565dN.exe
  C:\Users\Admin\AppData\Local\Temp\6723e2105e8f015634d802495b04e871bdacacb08faa0faf68eda0bb235b565dN.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3036

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\6415.DBB

Filesize
300B

MD5
d8dcfd62273bc2ab7befbccd2b892d12

SHA1
5bc12cf0807ff1f49b411d396ac320d9d9d5b2a3

SHA256
c038d07b65dd505ed7d5d46811fac51e0e373dd7b2be76c6c254b9a8b356e095

SHA512
7ca5bd8b794d991e4e5488d5d0c9c36f60025e3a132471a66a6db36adfcd0df96a13e34bad10cfe51fd4bedbd158d5fe210532cabb1ae407b6adedbb69bc6bb6

Download Submit
C:\Users\Admin\AppData\Roaming\6415.DBB

Filesize
1KB

MD5
433bd2eaecd0430e29c9ec736a13a424

SHA1
ba727e5bfdd385778a872d100844054e6583c690

SHA256
7290971c04443231bf9e865250c940115ace84a8b1c82d88571aaab8d2efe03a

SHA512
7ab55ae63dd20d00eaeadbbc4f8db71c3b1c89e263a9da1f8cbd1ef3df010e40b8d699f273b986fb55026b4a8f4c0cb0377ec56e9cca271906e1630af4b7f8db

Download Submit
C:\Users\Admin\AppData\Roaming\6415.DBB

Filesize
600B

MD5
d3fe0d68246449905f4dfa10085be57a

SHA1
0b673dabf1577129eb468f6b23f03a6156b535c7

SHA256
a10e51235a7e91b249d64de1c8fc1536ab2e0e62dfd98d0d6d7260e50897c1dc

SHA512
d787398812fb5f85f04c2ad8291649074b599cf21e4ab41679c8141a96862f5e3f8853dffe02541bf3c3c63fd7517a9f22361461008782e31487ed990294e7d0

Download Submit
C:\Users\Admin\AppData\Roaming\6415.DBB

Filesize
996B

MD5
e28f10a32424411f646de83a064c3098

SHA1
62096fcf5658dffdecf4510ecfc7875ff5ddc92e

SHA256
d804227f206ad762d3f686b33b3a19fe70abecd70dda283e49a76d59acb89135

SHA512
7e86ad9eaf52bfb0ad8eac078901e98b09c8adb50d004c1262b24793d20288567a912ff1b2e31bb3c48e8d3fe879ecea90e66167568f932f604534e4183ff82a

Download Submit
memory/1424-8-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1424-10-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2460-1-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2460-2-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2460-15-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2460-81-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2460-197-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/3036-80-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads