c92d43105b51dfd57704b44712fa58e8bee7c9f019d8d8f4a96a0b870a0a2f83

General

Target

c92d43105b51dfd57704b44712fa58e8bee7c9f019d8d8f4a96a0b870a0a2f83.exe
Size

237KB
MD5

9376c2ffdf5c4b95defb9d0ce7290da0
SHA1

bdf40c5fdd1564978be9ef025ecea1079f8c19e4
SHA256

c92d43105b51dfd57704b44712fa58e8bee7c9f019d8d8f4a96a0b870a0a2f83
SHA512

2b62a2a30e9416d939f04062ac02a899e63943e6bd3451efcedccc9a7480b7fb63d559a48064b6cb802328dcd0c6c80c6b7deed2c7f994d5c52026c057e43d3b
SSDEEP

3072:YlELL7XOCw0xQCdMey44tVkZj+8FzB7C1XWLmjPUXiYR8PyqssUggRHg90I7T8gN:b3kOMeaavF17EP6qyqsJgRZ7TAoT

Score

8^/10

bootkit persistence upx

Malware Config

Signatures

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/900-55-0x0000000000400000-0x0000000000489000-memory.dmp	upx
behavioral1/memory/900-57-0x0000000000400000-0x0000000000489000-memory.dmp	upx

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)	\??\i:	c92d43105b51dfd57704b44712fa58e8bee7c9f019d8d8f4a96a0b870a0a2f83.exe
File opened (read-only)	\??\o:	c92d43105b51dfd57704b44712fa58e8bee7c9f019d8d8f4a96a0b870a0a2f83.exe
File opened (read-only)	\??\p:	c92d43105b51dfd57704b44712fa58e8bee7c9f019d8d8f4a96a0b870a0a2f83.exe
File opened (read-only)	\??\q:	c92d43105b51dfd57704b44712fa58e8bee7c9f019d8d8f4a96a0b870a0a2f83.exe
File opened (read-only)	\??\f:	c92d43105b51dfd57704b44712fa58e8bee7c9f019d8d8f4a96a0b870a0a2f83.exe
File opened (read-only)	\??\h:	c92d43105b51dfd57704b44712fa58e8bee7c9f019d8d8f4a96a0b870a0a2f83.exe
File opened (read-only)	\??\k:	c92d43105b51dfd57704b44712fa58e8bee7c9f019d8d8f4a96a0b870a0a2f83.exe
File opened (read-only)	\??\x:	c92d43105b51dfd57704b44712fa58e8bee7c9f019d8d8f4a96a0b870a0a2f83.exe
File opened (read-only)	\??\y:	c92d43105b51dfd57704b44712fa58e8bee7c9f019d8d8f4a96a0b870a0a2f83.exe
File opened (read-only)	\??\v:	c92d43105b51dfd57704b44712fa58e8bee7c9f019d8d8f4a96a0b870a0a2f83.exe
File opened (read-only)	\??\e:	c92d43105b51dfd57704b44712fa58e8bee7c9f019d8d8f4a96a0b870a0a2f83.exe
File opened (read-only)	\??\g:	c92d43105b51dfd57704b44712fa58e8bee7c9f019d8d8f4a96a0b870a0a2f83.exe
File opened (read-only)	\??\j:	c92d43105b51dfd57704b44712fa58e8bee7c9f019d8d8f4a96a0b870a0a2f83.exe
File opened (read-only)	\??\m:	c92d43105b51dfd57704b44712fa58e8bee7c9f019d8d8f4a96a0b870a0a2f83.exe
File opened (read-only)	\??\r:	c92d43105b51dfd57704b44712fa58e8bee7c9f019d8d8f4a96a0b870a0a2f83.exe
File opened (read-only)	\??\s:	c92d43105b51dfd57704b44712fa58e8bee7c9f019d8d8f4a96a0b870a0a2f83.exe
File opened (read-only)	\??\l:	c92d43105b51dfd57704b44712fa58e8bee7c9f019d8d8f4a96a0b870a0a2f83.exe
File opened (read-only)	\??\n:	c92d43105b51dfd57704b44712fa58e8bee7c9f019d8d8f4a96a0b870a0a2f83.exe
File opened (read-only)	\??\t:	c92d43105b51dfd57704b44712fa58e8bee7c9f019d8d8f4a96a0b870a0a2f83.exe
File opened (read-only)	\??\u:	c92d43105b51dfd57704b44712fa58e8bee7c9f019d8d8f4a96a0b870a0a2f83.exe
File opened (read-only)	\??\w:	c92d43105b51dfd57704b44712fa58e8bee7c9f019d8d8f4a96a0b870a0a2f83.exe
File opened (read-only)	\??\z:	c92d43105b51dfd57704b44712fa58e8bee7c9f019d8d8f4a96a0b870a0a2f83.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

T1067

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	c92d43105b51dfd57704b44712fa58e8bee7c9f019d8d8f4a96a0b870a0a2f83.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\SAItest.txt	c92d43105b51dfd57704b44712fa58e8bee7c9f019d8d8f4a96a0b870a0a2f83.exe

Modifies system certificate store 2 TTPs 3 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\4EB6D578499B1CCF5F581EAD56BE3D9B6744A5E5	c92d43105b51dfd57704b44712fa58e8bee7c9f019d8d8f4a96a0b870a0a2f83.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\4EB6D578499B1CCF5F581EAD56BE3D9B6744A5E5\Blob = 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	c92d43105b51dfd57704b44712fa58e8bee7c9f019d8d8f4a96a0b870a0a2f83.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\4EB6D578499B1CCF5F581EAD56BE3D9B6744A5E5\Blob = 190000000100000010000000d8b5fb368468620275d142ffd2aade370300000001000000140000004eb6d578499b1ccf5f581ead56be3d9b6744a5e51d0000000100000010000000c6cbcafa17955c4cfd41eca0c654c3610b000000010000001200000056006500720069005300690067006e0000001400000001000000140000007fd365a7c2ddecbbf03009f34339fa02af33313353000000010000002500000030233021060b6086480186f8450107170630123010060a2b0601040182373c0101030200c009000000010000002a000000302806082b0601050507030106082b0601050507030206082b0601050507030406082b060105050703030f0000000100000014000000e91e1e972b8f467ab4e0598fa92285387dee94c92000000001000000d7040000308204d3308203bba003020102021018dad19e267de8bb4a2158cdcc6b3b4a300d06092a864886f70d01010505003081ca310b300906035504061302555331173015060355040a130e566572695369676e2c20496e632e311f301d060355040b1316566572695369676e205472757374204e6574776f726b313a3038060355040b1331286329203230303620566572695369676e2c20496e632e202d20466f7220617574686f72697a656420757365206f6e6c79314530430603550403133c566572695369676e20436c6173732033205075626c6963205072696d6172792043657274696669636174696f6e20417574686f72697479202d204735301e170d3036313130383030303030305a170d3336303731363233353935395a3081ca310b300906035504061302555331173015060355040a130e566572695369676e2c20496e632e311f301d060355040b1316566572695369676e205472757374204e6574776f726b313a3038060355040b1331286329203230303620566572695369676e2c20496e632e202d20466f7220617574686f72697a656420757365206f6e6c79314530430603550403133c566572695369676e20436c6173732033205075626c6963205072696d6172792043657274696669636174696f6e20417574686f72697479202d20473530820122300d06092a864886f70d01010105000382010f003082010a0282010100af240808297a359e600caae74b3b4edc7cbc3c451cbb2be0fe2902f95708a364851527f5f1adc831895d22e82aaaa642b38ff8b955b7b1b74bb3fe8f7e0757ecef43db66621561cf600da4d8def8e0c362083d5413eb49ca59548526e52b8f1b9febf5a191c23349d843636a524bd28fe870514dd189697bc770f6b3dc1274db7b5d4b56d396bf1577a1b0f4a225f2af1c926718e5f40604ef90b9e400e4dd3ab519ff02baf43ceee08beb378becf4d7acf2f6f03dafdd759133191d1c40cb7424192193d914feac2a52c78fd50449e48d6347883c6983cbfe47bd2b7e4fc595ae0e9dd4d143c06773e314087ee53f9f73b8330acf5d3f3487968aee53e825150203010001a381b23081af300f0603551d130101ff040530030101ff300e0603551d0f0101ff040403020106306d06082b0601050507010c0461305fa15da05b3059305730551609696d6167652f6769663021301f300706052b0e03021a04148fe5d31a86ac8d8e6bc3cf806ad448182c7b192e30251623687474703a2f2f6c6f676f2e766572697369676e2e636f6d2f76736c6f676f2e676966301d0603551d0e041604147fd365a7c2ddecbbf03009f34339fa02af333133300d06092a864886f70d0101050500038201010093244a305f62cfd81a982f3deadc992dbd77f6a5792238ecc4a7a07812ad620e457064c5e797662d98097e5fafd6cc2865f201aa081a47def9f97c925a0869200dd93e6d6e3c0d6ed8e606914018b9f8c1eddfdb41aae09620c9cd64153881c994eea284290b136f8edb0cdd2502dba48b1944d2417a05694a584f60ca7e826a0b02aa251739b5db7fe784652a958abd86de5e8116832d10ccdefda8822a6d281f0d0bc4e5e71a2619e1f4116f10b595fce7420532dbce9d515e28b69e85d35befa57d4540728eb70e6b0e06fb33354871b89d278bc4655f0d86769c447af6955cf65d320833a454b6183f685cf2424a853854835fd1e82cf2ac11d6a8ed636a	c92d43105b51dfd57704b44712fa58e8bee7c9f019d8d8f4a96a0b870a0a2f83.exe

C:\Users\Admin\AppData\Local\Temp\c92d43105b51dfd57704b44712fa58e8bee7c9f019d8d8f4a96a0b870a0a2f83.exe
"C:\Users\Admin\AppData\Local\Temp\c92d43105b51dfd57704b44712fa58e8bee7c9f019d8d8f4a96a0b870a0a2f83.exe"
1⤵
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Drops file in Program Files directory
- Modifies system certificate store
PID:900

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

1

T1067

Privilege Escalation

Defense Evasion

Install Root Certificate

Modify Registry

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/900-54-0x0000000076071000-0x0000000076073000-memory.dmp

Filesize
8KB

Download
memory/900-55-0x0000000000400000-0x0000000000489000-memory.dmp

Filesize
548KB

Download
memory/900-57-0x0000000000400000-0x0000000000489000-memory.dmp

Filesize
548KB

Download

Analysis

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