cycbot | c99bc18be5b58e344808109b19374ca2d4691109e210900a63ca021bb602f86f

General

Target

cb92ffc0d0d0905eb7b1274de57b5af9_JaffaCakes118.exe
Size

186KB
MD5

cb92ffc0d0d0905eb7b1274de57b5af9
SHA1

4d7df5f17646b628655b2f3f0df37a6c8ee0bdb3
SHA256

c99bc18be5b58e344808109b19374ca2d4691109e210900a63ca021bb602f86f
SHA512

0191164b011d93e63ba22d6f03a02556f0b8a3a1f0e3df329a0f3bd0b36a6bb4458026c1a85a9b34640c61a94a51ff3d17fcb5e19b7abf01fc89e7c314fc477c
SSDEEP

3072:WxymEZpYy5vXTz2eQhBQWAsEa27XKGMK1UUVAyAMt41f8sqgPAICw/:WxymEvD5m1hlrl2DKq1jAIOfVzvC

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/2384-7-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2848-15-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2848-78-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/1220-80-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2848-182-0x0000000000400000-0x0000000000445000-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"	cb92ffc0d0d0905eb7b1274de57b5af9_JaffaCakes118.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2848-2-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2384-6-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2384-7-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2848-15-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2848-78-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/1220-80-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2848-182-0x0000000000400000-0x0000000000445000-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	cb92ffc0d0d0905eb7b1274de57b5af9_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cb92ffc0d0d0905eb7b1274de57b5af9_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cb92ffc0d0d0905eb7b1274de57b5af9_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2848 wrote to memory of 2384	2848	cb92ffc0d0d0905eb7b1274de57b5af9_JaffaCakes118.exe	31
PID 2848 wrote to memory of 2384	2848	cb92ffc0d0d0905eb7b1274de57b5af9_JaffaCakes118.exe	31
PID 2848 wrote to memory of 2384	2848	cb92ffc0d0d0905eb7b1274de57b5af9_JaffaCakes118.exe	31
PID 2848 wrote to memory of 2384	2848	cb92ffc0d0d0905eb7b1274de57b5af9_JaffaCakes118.exe	31
PID 2848 wrote to memory of 1220	2848	cb92ffc0d0d0905eb7b1274de57b5af9_JaffaCakes118.exe	33
PID 2848 wrote to memory of 1220	2848	cb92ffc0d0d0905eb7b1274de57b5af9_JaffaCakes118.exe	33
PID 2848 wrote to memory of 1220	2848	cb92ffc0d0d0905eb7b1274de57b5af9_JaffaCakes118.exe	33
PID 2848 wrote to memory of 1220	2848	cb92ffc0d0d0905eb7b1274de57b5af9_JaffaCakes118.exe	33

C:\Users\Admin\AppData\Local\Temp\cb92ffc0d0d0905eb7b1274de57b5af9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\cb92ffc0d0d0905eb7b1274de57b5af9_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2848
- C:\Users\Admin\AppData\Local\Temp\cb92ffc0d0d0905eb7b1274de57b5af9_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\cb92ffc0d0d0905eb7b1274de57b5af9_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2384
- C:\Users\Admin\AppData\Local\Temp\cb92ffc0d0d0905eb7b1274de57b5af9_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\cb92ffc0d0d0905eb7b1274de57b5af9_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1220

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\20AF.B32

Filesize
1KB

MD5
4dad2664f4572712643509975f179ecd

SHA1
04dcf28fa8b594b2e712b9debe1ec529f9284c27

SHA256
b75434b68e33b8183c047c6e4a817c59607bdd2417112f24a3d8cf8c3745fd49

SHA512
dd75ad415cb68f4f08903fffc37df3a3922b2d2015e5dd3a3c7a4ce6b15a48d1bf8fa7834a8ac32015ee2278e812991591621155b358e64541e870ccac690ff7

Download Submit
C:\Users\Admin\AppData\Roaming\20AF.B32

Filesize
1KB

MD5
791765e35e8cdb5f094fc6171a571571

SHA1
c0c911b40f0393d4281f2157ec8f9c0cdf5cbb0a

SHA256
bf3f3ff06674756172a4a1841957466fafa235712b1bfc3589ae139befa24e1b

SHA512
65a7f62e0d3efa203596b0a7cd0478387cf780071c659a0afc3ce6ee88de2f11e81d50db896675e8746375ab1795ca91c092c486f36f0a8e90b4f227b121a917

Download Submit
C:\Users\Admin\AppData\Roaming\20AF.B32

Filesize
600B

MD5
4cb7476e7bebf49a25a5bf09c9482165

SHA1
909489927bf9e55f0757663ca0bf80b9c5b5ff8e

SHA256
29532ab7594402a7fe55b9c1b2747bccb0b7a3bbe1bb8b337d762a1c66e73afa

SHA512
993674883b67ebcc985f9b7154e1dd6c4438bdf76b1c6d6ee494b2aec10174fb64414dec36f70ec927381d896229858670bb0a8d583a906f0d7c9c1b6428754c

Download Submit
C:\Users\Admin\AppData\Roaming\20AF.B32

Filesize
996B

MD5
c6497b3f8a10785dde5dadf78d1b6f4d

SHA1
5d52aeb23026991e747d1fa717fa3f6a2accb81b

SHA256
7fc382f6c68219f8c54727adccc077fbce80b986e3391a0be354bf983157b5d1

SHA512
b216098de648d8d05976b57dd86c8e0bda39e51dd8ce96f507fb084a5766bb7eadd640457ededc4941ce1c41e1d5e19e3b941d3eae9b772de8a0b789c78e385c

Download Submit
memory/1220-80-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2384-7-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2384-5-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2384-6-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2848-15-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2848-78-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2848-1-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2848-2-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2848-182-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads