cycbot | bdbe75670b11c01aef51a04f979a60fd545e4ee07ccc6efc11e085a1dd131866

General

Target

f019c2b9c2b6a64d57cd4a5b052e35a9_JaffaCakes118.exe
Size

166KB
MD5

f019c2b9c2b6a64d57cd4a5b052e35a9
SHA1

35ecca319710a28d470286432cabb391816642c0
SHA256

bdbe75670b11c01aef51a04f979a60fd545e4ee07ccc6efc11e085a1dd131866
SHA512

749653102095d8b530ce9c524d5d4dcc5744eb51df04685ff3b544a54386c37c028f520054efa726222f9f1468f7251272773ddddfa9ce5cf8d523c6b330c2e3
SSDEEP

3072:vufEwW90LLrjzeNaDaW1S2XyabQNPxPHtHTk8cRB:2sF0eJW1rNbuFA8oB

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/3364-13-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/2212-14-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/2212-78-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/388-82-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/2212-196-0x0000000000400000-0x0000000000445000-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"	f019c2b9c2b6a64d57cd4a5b052e35a9_JaffaCakes118.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2212-2-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/3364-12-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/3364-13-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/2212-14-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/2212-78-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/388-82-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/2212-196-0x0000000000400000-0x0000000000445000-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	f019c2b9c2b6a64d57cd4a5b052e35a9_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f019c2b9c2b6a64d57cd4a5b052e35a9_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f019c2b9c2b6a64d57cd4a5b052e35a9_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2212 wrote to memory of 3364	2212	f019c2b9c2b6a64d57cd4a5b052e35a9_JaffaCakes118.exe	82
PID 2212 wrote to memory of 3364	2212	f019c2b9c2b6a64d57cd4a5b052e35a9_JaffaCakes118.exe	82
PID 2212 wrote to memory of 3364	2212	f019c2b9c2b6a64d57cd4a5b052e35a9_JaffaCakes118.exe	82
PID 2212 wrote to memory of 388	2212	f019c2b9c2b6a64d57cd4a5b052e35a9_JaffaCakes118.exe	85
PID 2212 wrote to memory of 388	2212	f019c2b9c2b6a64d57cd4a5b052e35a9_JaffaCakes118.exe	85
PID 2212 wrote to memory of 388	2212	f019c2b9c2b6a64d57cd4a5b052e35a9_JaffaCakes118.exe	85

C:\Users\Admin\AppData\Local\Temp\f019c2b9c2b6a64d57cd4a5b052e35a9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f019c2b9c2b6a64d57cd4a5b052e35a9_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2212
- C:\Users\Admin\AppData\Local\Temp\f019c2b9c2b6a64d57cd4a5b052e35a9_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f019c2b9c2b6a64d57cd4a5b052e35a9_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3364
- C:\Users\Admin\AppData\Local\Temp\f019c2b9c2b6a64d57cd4a5b052e35a9_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f019c2b9c2b6a64d57cd4a5b052e35a9_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:388

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\4AFB.586

Filesize
1KB

MD5
adc99ee7a95de638213df67663cc2d13

SHA1
428a607160285a447bb75b6ca7b039dae5a59e33

SHA256
5daee7500a02307aba4813f09ac6162fbd01a1d87b0b9b9e77016e2ffdebfe4f

SHA512
88263e000af7149cabaa5d34aa4ab2898a860b2c497fb33bbc5201d749f8405e7451f78eb4cb2a403e9c14a689ea8c9fbc182a81bf3343bfc3360f5f2bf04fb3

Download Submit
C:\Users\Admin\AppData\Roaming\4AFB.586

Filesize
600B

MD5
0b89fad0e88b6eb6bbe99290dfa4a127

SHA1
9af7d485cef9c10c63ef032babdb5c22345ddfa7

SHA256
a24a3e36bf05d3c87c88bb75fd8f807c133e3e7e1370c22d5d1948a173935985

SHA512
a9b50168bf470b0d67fd6289d9ac7b369f6c01bb4c0bcd6a1978d570daf25bdc0eac1f283c385446b92fb6d53f099f5db9a24f05708807fce66e9a26dc08a0ab

Download Submit
C:\Users\Admin\AppData\Roaming\4AFB.586

Filesize
996B

MD5
5bacc5c782ed216d6c8a79b12a410d69

SHA1
a57b44b669940de1f7dfc3bafe8ef3f1e95ea79b

SHA256
b442aa4c37a7eecb356e031b375a6c225c283035d0fa476ceb7f9d413de5d931

SHA512
c87899b4c515915043a480cbc808da1a74aa6cba239d53d9455e96e39b8a8864a59dc85cebb7efcc8ab0b0e7fef5b1b8a07f21cdf77ed548c9b3f4af054e223f

Download Submit
memory/388-80-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/388-82-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2212-1-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2212-2-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2212-14-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2212-78-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2212-196-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/3364-12-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/3364-13-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads