dee7e3f3679a24b97f419eed8b9865eebb20763d19c8ff868673daa64148f244

General

Target

100649ecc483036daf884a357eb2b55f_JaffaCakes118.exe
Size

9.1MB
MD5

100649ecc483036daf884a357eb2b55f
SHA1

3e61cf5e67e1a5cbafdb422b07ee380db9e179b0
SHA256

dee7e3f3679a24b97f419eed8b9865eebb20763d19c8ff868673daa64148f244
SHA512

1b8c00e74b9ca340cc7187b9eec0b7a323a28e1969ae29fc7918ea848492264969d3a58fcfcf661e097104627e8d774a3fe89d0e22c1dfbc459e059d90807087
SSDEEP

196608:zNVyyqlUgN7AktVweDObZ9G5eWWi/zio/i4:zv2ObZcwWrX/H

Score

7^/10

bootkit discovery persistence

Malware Config

Signatures

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2440	icacls.exe

Enumerates connected drives 3 TTPs 22 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

description	ioc	Process
File opened (read-only)	\??\F:	100649ecc483036daf884a357eb2b55f_JaffaCakes118.exe
File opened (read-only)	\??\G:	100649ecc483036daf884a357eb2b55f_JaffaCakes118.exe
File opened (read-only)	\??\J:	100649ecc483036daf884a357eb2b55f_JaffaCakes118.exe
File opened (read-only)	\??\M:	100649ecc483036daf884a357eb2b55f_JaffaCakes118.exe
File opened (read-only)	\??\Y:	100649ecc483036daf884a357eb2b55f_JaffaCakes118.exe
File opened (read-only)	\??\Z:	100649ecc483036daf884a357eb2b55f_JaffaCakes118.exe
File opened (read-only)	\??\N:	100649ecc483036daf884a357eb2b55f_JaffaCakes118.exe
File opened (read-only)	\??\T:	100649ecc483036daf884a357eb2b55f_JaffaCakes118.exe
File opened (read-only)	\??\U:	100649ecc483036daf884a357eb2b55f_JaffaCakes118.exe
File opened (read-only)	\??\V:	100649ecc483036daf884a357eb2b55f_JaffaCakes118.exe
File opened (read-only)	\??\X:	100649ecc483036daf884a357eb2b55f_JaffaCakes118.exe
File opened (read-only)	\??\H:	100649ecc483036daf884a357eb2b55f_JaffaCakes118.exe
File opened (read-only)	\??\L:	100649ecc483036daf884a357eb2b55f_JaffaCakes118.exe
File opened (read-only)	\??\O:	100649ecc483036daf884a357eb2b55f_JaffaCakes118.exe
File opened (read-only)	\??\P:	100649ecc483036daf884a357eb2b55f_JaffaCakes118.exe
File opened (read-only)	\??\Q:	100649ecc483036daf884a357eb2b55f_JaffaCakes118.exe
File opened (read-only)	\??\W:	100649ecc483036daf884a357eb2b55f_JaffaCakes118.exe
File opened (read-only)	\??\E:	100649ecc483036daf884a357eb2b55f_JaffaCakes118.exe
File opened (read-only)	\??\I:	100649ecc483036daf884a357eb2b55f_JaffaCakes118.exe
File opened (read-only)	\??\K:	100649ecc483036daf884a357eb2b55f_JaffaCakes118.exe
File opened (read-only)	\??\R:	100649ecc483036daf884a357eb2b55f_JaffaCakes118.exe
File opened (read-only)	\??\S:	100649ecc483036daf884a357eb2b55f_JaffaCakes118.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	100649ecc483036daf884a357eb2b55f_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
2684	TenioDL.exe

Loads dropped DLL 8 IoCs

pid	Process
2508	100649ecc483036daf884a357eb2b55f_JaffaCakes118.exe
2508	100649ecc483036daf884a357eb2b55f_JaffaCakes118.exe
2508	100649ecc483036daf884a357eb2b55f_JaffaCakes118.exe
2508	100649ecc483036daf884a357eb2b55f_JaffaCakes118.exe
2508	100649ecc483036daf884a357eb2b55f_JaffaCakes118.exe
2684	TenioDL.exe
2508	100649ecc483036daf884a357eb2b55f_JaffaCakes118.exe
2684	TenioDL.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 3 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\metnsd\clsid\SequenceID = 65096dc6fc7d0e4487588c6941e2ca70	TenioDL.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\metnsd\clsid	TenioDL.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\metnsd	TenioDL.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2508	100649ecc483036daf884a357eb2b55f_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeManageVolumePrivilege	2684	TenioDL.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2508 wrote to memory of 2684	2508	100649ecc483036daf884a357eb2b55f_JaffaCakes118.exe	28
PID 2508 wrote to memory of 2684	2508	100649ecc483036daf884a357eb2b55f_JaffaCakes118.exe	28
PID 2508 wrote to memory of 2684	2508	100649ecc483036daf884a357eb2b55f_JaffaCakes118.exe	28
PID 2508 wrote to memory of 2684	2508	100649ecc483036daf884a357eb2b55f_JaffaCakes118.exe	28
PID 2684 wrote to memory of 2440	2684	TenioDL.exe	30
PID 2684 wrote to memory of 2440	2684	TenioDL.exe	30
PID 2684 wrote to memory of 2440	2684	TenioDL.exe	30
PID 2684 wrote to memory of 2440	2684	TenioDL.exe	30

C:\Users\Admin\AppData\Local\Temp\100649ecc483036daf884a357eb2b55f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\100649ecc483036daf884a357eb2b55f_JaffaCakes118.exe"
1⤵
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2508
- C:\Users\Admin\AppData\Roaming\Tencent\TxGameAssistant\GameDownload\TenioDL.exe
  C:\Users\Admin\AppData\Roaming\Tencent\TxGameAssistant\GameDownload\TenioDL.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2684
- - C:\Windows\SysWOW64\icacls.exe
    "C:\Windows\System32\icacls.exe" C:\Users\Admin\AppData\Roaming\Tencent\Config\ /t /setintegritylevel low
    3⤵
    - Modifies file permissions
    PID:2440

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

1

T1222

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Tencent\TxGameAssistant\GameDownload\TenioDL_core.dll

Filesize
543KB

MD5
11d65a68132e918bd80e7e0a09029730

SHA1
c1978c02176e1e370c66d1597e964eab908847dc

SHA256
36c18dedac0429375c583fcf9420cdc9ace8a38bbac9f33378b5b4d6739da511

SHA512
34278a85cfdad1b2086b9368368b6eada08829c3237d02d0afbfced4f32df38e95a5ca0a600fc8d8c98c33d6cc8d4ac82c3279ccdba36cb0ed4738c1c0648315

Download Submit
C:\Users\Admin\AppData\Roaming\Tencent\TxGameAssistant\GameDownload\p2papp.dll

Filesize
2.9MB

MD5
b1b101d86c417286e60f471fc8b79bb1

SHA1
b602bee2a25ed63a1f9cda72c83bdadd44dcd07c

SHA256
91cfa1769be449dfdfbf6bcc8049ce5c9218df6deaa66a0879528526b204a51a

SHA512
0a1d03364e1a52c08d6992a52b31b29f54c3781c009562427c560338db5428b74b55fab41f9c48c7018ddce41ab6a7f8593fbf12a75ae472c11590a36b42682b

Download Submit
\Users\Admin\AppData\Roaming\Tencent\TxGameAssistant\GameDownload\TenioDL.dll

Filesize
523KB

MD5
34431eb1ae2d3ac86e3415d8c3e977a3

SHA1
b2eae82dffecdbe02ef877d5a4d28de83b84bd59

SHA256
8379e09c7a3a51bdb652418781ceed8067e324b656c7d5a307b9a77c899f0806

SHA512
32b1d12630ced494b5168037a1d0899b3576970f603b5e69bf48fd915a4dad51d877e97bc91660929719e3a1395344ec39d5cc5b761111096c4523563d3bdd5e

Download Submit
\Users\Admin\AppData\Roaming\Tencent\TxGameAssistant\GameDownload\TenioDL.exe

Filesize
167KB

MD5
8fb4e336f4c145eb6e379701c3ac59d1

SHA1
ad53b732cabd515035784f187aeaab4d8a6b67c7

SHA256
d7a59b5ba3f0fb3906ebaa7a67c76088995a1f37652a2ae9893977c19754d9bf

SHA512
c83b726e867f47c9fdabaf3151ae74c07e2b74be47f8ec41685fee744eba41c81614faaf473fcd28cabc044545eddcad5cbbaf67e90109d916e109c1b5d6a770

Download Submit
\Users\Admin\AppData\Roaming\Tencent\TxGameAssistant\GameDownload\dr.dll

Filesize
74KB

MD5
2814acbd607ba47bdbcdf6ac3076ee95

SHA1
50ab892071bed2bb2365ca1d4bf5594e71c6b13b

SHA256
5904a7e4d97eeac939662c3638a0e145f64ff3dd0198f895c4bf0337595c6a67

SHA512
34c73014ffc8d38d6dd29f4f84c8f4f9ea971bc131f665f65b277f453504d5efc2d483a792cdea610c5e0544bf3997b132dcdbe37224912c5234c15cdb89d498

Download Submit
memory/2508-25-0x00000000000D0000-0x00000000000E1000-memory.dmp

Filesize
68KB

Download
memory/2508-27-0x00000000001A0000-0x00000000001A1000-memory.dmp

Filesize
4KB

Download
memory/2508-43-0x00000000001A0000-0x00000000001A1000-memory.dmp

Filesize
4KB

Download
memory/2684-31-0x0000000001F50000-0x000000000223F000-memory.dmp

Filesize
2.9MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads