2e9690b042e3be4bef18f559f5df992d8cff70b1f8d3aed3e649c7e100f1077f

General

Target

0046af8b8f7390c9ffffa0cb21f0cb71_JaffaCakes118.exe
Size

863KB
MD5

0046af8b8f7390c9ffffa0cb21f0cb71
SHA1

4e79a31dcdef729be1d4f803e99d3f69b116a5e1
SHA256

2e9690b042e3be4bef18f559f5df992d8cff70b1f8d3aed3e649c7e100f1077f
SHA512

61732e3e8ca309ba64fd8ac7a1adc1f0d5e1a5b22ae8b362e799ca4e3ca9ff44c364f8ece71efee6697f39e7e3c236f16dd326701beda8fe570a0db4dd015688
SSDEEP

24576:ZMMpXS0hN0V0HZSGB2uJ2s4otqFCJrW9FqvSbqsHasgXhFHDAGtlRXZ+CP63n0ND:Kwi0L0qk+5W/W

Score

10^/10

aspackv2 persistence ransomware

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

Processes:

HelpMe.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe HelpMe.exe"	HelpMe.exe

Renames multiple (91) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

ASPack v2.12-2.42 2 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

Processes:

resource	yara_rule
\Windows\SysWOW64\HelpMe.exe	aspack_v212_v242
C:\$Recycle.Bin\S-1-5-21-1298544033-3225604241-2703760938-1000\desktop.ini.exe	aspack_v212_v242

Drops startup file 2 IoCs

Processes:

HelpMe.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk	HelpMe.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk	HelpMe.exe

Executes dropped EXE 1 IoCs

Processes:

HelpMe.exe

pid process

1260 HelpMe.exe
Loads dropped DLL 2 IoCs

Processes:

0046af8b8f7390c9ffffa0cb21f0cb71_JaffaCakes118.exe

pid process

2056 0046af8b8f7390c9ffffa0cb21f0cb71_JaffaCakes118.exe
2056 0046af8b8f7390c9ffffa0cb21f0cb71_JaffaCakes118.exe

pid	process
1260	HelpMe.exe

pid	process
2056	0046af8b8f7390c9ffffa0cb21f0cb71_JaffaCakes118.exe
2056	0046af8b8f7390c9ffffa0cb21f0cb71_JaffaCakes118.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

HelpMe.exe

description	ioc	process
File opened (read-only)	\??\A:	HelpMe.exe
File opened (read-only)	\??\G:	HelpMe.exe
File opened (read-only)	\??\J:	HelpMe.exe
File opened (read-only)	\??\K:	HelpMe.exe
File opened (read-only)	\??\L:	HelpMe.exe
File opened (read-only)	\??\Q:	HelpMe.exe
File opened (read-only)	\??\R:	HelpMe.exe
File opened (read-only)	\??\X:	HelpMe.exe
File opened (read-only)	\??\I:	HelpMe.exe
File opened (read-only)	\??\W:	HelpMe.exe
File opened (read-only)	\??\Z:	HelpMe.exe
File opened (read-only)	\??\E:	HelpMe.exe
File opened (read-only)	\??\H:	HelpMe.exe
File opened (read-only)	\??\M:	HelpMe.exe
File opened (read-only)	\??\V:	HelpMe.exe
File opened (read-only)	\??\B:	HelpMe.exe
File opened (read-only)	\??\N:	HelpMe.exe
File opened (read-only)	\??\O:	HelpMe.exe
File opened (read-only)	\??\P:	HelpMe.exe
File opened (read-only)	\??\S:	HelpMe.exe
File opened (read-only)	\??\T:	HelpMe.exe
File opened (read-only)	\??\U:	HelpMe.exe
File opened (read-only)	\??\Y:	HelpMe.exe

Drops autorun.inf file 1 TTPs 2 IoCs
Malware can abuse Windows Autorun to spread further via attached volumes.

Replication Through Removable Media
T1091

Processes:

HelpMe.exe

description ioc process

File opened for modification C:\AUTORUN.INF HelpMe.exe
File opened for modification F:\AUTORUN.INF HelpMe.exe

description	ioc	process
File opened for modification	C:\AUTORUN.INF	HelpMe.exe
File opened for modification	F:\AUTORUN.INF	HelpMe.exe

Drops file in System32 directory 4 IoCs

Processes:

0046af8b8f7390c9ffffa0cb21f0cb71_JaffaCakes118.exeHelpMe.exe

description	ioc	process
File created	C:\Windows\SysWOW64\HelpMe.exe	0046af8b8f7390c9ffffa0cb21f0cb71_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\HelpMe.exe	HelpMe.exe
File opened for modification	C:\Windows\SysWOW64\HelpMe.exe	0046af8b8f7390c9ffffa0cb21f0cb71_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\notepad.exe.exe	0046af8b8f7390c9ffffa0cb21f0cb71_JaffaCakes118.exe

Drops file in Program Files directory 1 IoCs

Processes:

0046af8b8f7390c9ffffa0cb21f0cb71_JaffaCakes118.exe

description ioc process

File created C:\Program Files (x86)\Internet Explorer\iexplore.exe.exe 0046af8b8f7390c9ffffa0cb21f0cb71_JaffaCakes118.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

0046af8b8f7390c9ffffa0cb21f0cb71_JaffaCakes118.exe

pid process

2056 0046af8b8f7390c9ffffa0cb21f0cb71_JaffaCakes118.exe

description	ioc	process
File created	C:\Program Files (x86)\Internet Explorer\iexplore.exe.exe	0046af8b8f7390c9ffffa0cb21f0cb71_JaffaCakes118.exe

pid	process
2056	0046af8b8f7390c9ffffa0cb21f0cb71_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

0046af8b8f7390c9ffffa0cb21f0cb71_JaffaCakes118.exe

description	pid	process	target process
PID 2056 wrote to memory of 1260	2056	0046af8b8f7390c9ffffa0cb21f0cb71_JaffaCakes118.exe	HelpMe.exe
PID 2056 wrote to memory of 1260	2056	0046af8b8f7390c9ffffa0cb21f0cb71_JaffaCakes118.exe	HelpMe.exe
PID 2056 wrote to memory of 1260	2056	0046af8b8f7390c9ffffa0cb21f0cb71_JaffaCakes118.exe	HelpMe.exe
PID 2056 wrote to memory of 1260	2056	0046af8b8f7390c9ffffa0cb21f0cb71_JaffaCakes118.exe	HelpMe.exe

C:\Users\Admin\AppData\Local\Temp\0046af8b8f7390c9ffffa0cb21f0cb71_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\0046af8b8f7390c9ffffa0cb21f0cb71_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2056

C:\Windows\SysWOW64\HelpMe.exe
C:\Windows\system32\HelpMe.exe
2⤵
- Modifies WinLogon for persistence
- Drops startup file
- Executes dropped EXE
- Enumerates connected drives
- Drops autorun.inf file
- Drops file in System32 directory
PID:1260

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Replication Through Removable Media

1

T1091

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Replication Through Removable Media

1

T1091

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\$Recycle.Bin\S-1-5-21-1298544033-3225604241-2703760938-1000\desktop.ini.exe

Filesize
688KB

MD5
52cfd1bc875bd1b825272035eb856c40

SHA1
2bf947f292efb0fa94f4fe7eac78540b7b8aa326

SHA256
2d75df3dabe5e38c73dffe33b935fe1173e9ddabced987dc109766494750668c

SHA512
2feee11cb62a6c23f95e88844c6ca2da4c212498fb6779bb03795f138e68614e172c1bd937a7de82c553c8f22c284e113ae61575bbf38c8eec5b32f6190c4b22

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk

Filesize
954B

MD5
c7c3f7ae21252ac033373d55b7206244

SHA1
bf8e329ba3d4018ecc66d871554d680b8f94012f

SHA256
9c4d8c8e7ceb7f35633a6dfb85991005ec9940bab792260cf1e1f79d9768f880

SHA512
942a05a6900da972bdb21e9975dc3f3e809678a8927855b6e7ad5164897e18ef8ecefc3a4a307c39d160b39558a237d40d48fbb12a07692ded221c5d99164d82

Download Submit
F:\AUTORUN.INF

Filesize
145B

MD5
ca13857b2fd3895a39f09d9dde3cca97

SHA1
8b78c5b2ec97c372ebdcef92d14b0998f8dd6dd0

SHA256
cfe448b4506a95b33b529efa88f1ac704d8bdf98a941c065650ead27609318ae

SHA512
55e5b5325968d1e5314527fb2d26012f5aae4a1c38e305417be273400cb1c6d0c22b85bddb501d7a5720a3f53bb5caf6ada8a7894232344c4f6c6ef85d226b47

Download Submit
\Windows\SysWOW64\HelpMe.exe

Filesize
687KB

MD5
a2861ec0b143856128231e6d4da8595f

SHA1
40fa1f97643e8ccf4d4cba094f7e7c4c24497c3d

SHA256
03f80e9d7875f8667a018bda913dd7d82a836c15b7344a42109d8c4f2ad62130

SHA512
bc7cb65ac148ea050fd9368827579d58e90fa0d89e1b2fd86a7e7ea52cf93c54a2def3c518f5be5c16e3943a3057c2997d86c21af33d308c229d82a57fa3cfdb

Download Submit
memory/1260-239-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1260-249-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1260-230-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1260-233-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1260-10-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/1260-236-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1260-270-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1260-243-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1260-246-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1260-267-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1260-252-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1260-255-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1260-258-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1260-261-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1260-264-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2056-17-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2056-0-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads