cycbot | 8b46106985b66c08217ca954ce45e0782cc9656fc7ed2b1fe189b2fc8bd21281

General

Target

e40061adb0a7d4632d60dd05a141a9dd_JaffaCakes118.exe
Size

176KB
MD5

e40061adb0a7d4632d60dd05a141a9dd
SHA1

b2be93887080ae26bf970ed8445fc8220721fb13
SHA256

8b46106985b66c08217ca954ce45e0782cc9656fc7ed2b1fe189b2fc8bd21281
SHA512

cc2d2acfc8ae52991d17021a71a9b4cba5390c7f668ba43b9be1b0b34c5ae56c3ba07dc05ace84fd81208aa05e1874b18d926bbb802bbabfd2cde7b8ab5942b6
SSDEEP

3072:GJ4ujspDuTsIDV/gWtgapfGOLxJUgi9WSV4x7KEigdG:GJtwSsIJ/g9apeOLjb6VV4M

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/5108-13-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/3240-14-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/3240-81-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/4864-86-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/3240-197-0x0000000000400000-0x0000000000445000-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"	e40061adb0a7d4632d60dd05a141a9dd_JaffaCakes118.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3240-2-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/5108-13-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/3240-14-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/3240-81-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/4864-84-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/4864-86-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/3240-197-0x0000000000400000-0x0000000000445000-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	e40061adb0a7d4632d60dd05a141a9dd_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e40061adb0a7d4632d60dd05a141a9dd_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e40061adb0a7d4632d60dd05a141a9dd_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3240 wrote to memory of 5108	3240	e40061adb0a7d4632d60dd05a141a9dd_JaffaCakes118.exe	82
PID 3240 wrote to memory of 5108	3240	e40061adb0a7d4632d60dd05a141a9dd_JaffaCakes118.exe	82
PID 3240 wrote to memory of 5108	3240	e40061adb0a7d4632d60dd05a141a9dd_JaffaCakes118.exe	82
PID 3240 wrote to memory of 4864	3240	e40061adb0a7d4632d60dd05a141a9dd_JaffaCakes118.exe	83
PID 3240 wrote to memory of 4864	3240	e40061adb0a7d4632d60dd05a141a9dd_JaffaCakes118.exe	83
PID 3240 wrote to memory of 4864	3240	e40061adb0a7d4632d60dd05a141a9dd_JaffaCakes118.exe	83

C:\Users\Admin\AppData\Local\Temp\e40061adb0a7d4632d60dd05a141a9dd_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e40061adb0a7d4632d60dd05a141a9dd_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3240
- C:\Users\Admin\AppData\Local\Temp\e40061adb0a7d4632d60dd05a141a9dd_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\e40061adb0a7d4632d60dd05a141a9dd_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5108
- C:\Users\Admin\AppData\Local\Temp\e40061adb0a7d4632d60dd05a141a9dd_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\e40061adb0a7d4632d60dd05a141a9dd_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4864

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\624F.6BF

Filesize
1KB

MD5
878740b950b6effdc0c307f278166a0c

SHA1
33367873febcb0afa77531ea08334c149c7de47b

SHA256
d67f06cf9b4f0e7d27f0befea3027cfc1490c0d62f6e87f7b209f7767946da11

SHA512
96b34888b4adf39a6441990cf3c30f574e57dc93a5cdd431cd503fadb9a3e5bd4a276e361de2fa2be3d1bb73e11c3aff9ea6a8d076a31a7e39892d09d433ee59

Download Submit
C:\Users\Admin\AppData\Roaming\624F.6BF

Filesize
600B

MD5
b50287f98105c2033bfe4df8ea724674

SHA1
ac788d85d6be920328427cdd661550fc277e631a

SHA256
ed49cd6651b9f719dab86a360e2e54d28c037c31c67150fd765ae3b90ba14f69

SHA512
dd13c1593c7677153e2308cb71b3ffda05919dee71d1263d0bdae0a06fbff9b90d47f6b4811fa366c5d3429848725b1f40549f501861bb0de1a37ebcad0e6bdd

Download Submit
C:\Users\Admin\AppData\Roaming\624F.6BF

Filesize
996B

MD5
bef37b96f801700c80f7d413ea72ea16

SHA1
5eaa65639a59ee7f24a2085ca36e0e042ae529d2

SHA256
7f025cd9aa20a3ce00f61f453d0955b15345f132ca1350d2f2a3f51550640b10

SHA512
3e0e9cbbbe58809a2abc0bc24f2778976850f69d71305a7b2303abedc54a246fa7273c440e76529362d7bc968df8d81ca0c3c9e1bc344c4e47d3906af15c42be

Download Submit
memory/3240-1-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/3240-2-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/3240-14-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/3240-81-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/3240-197-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4864-83-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4864-84-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4864-86-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/5108-13-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads