bf8bb0e754afaf42ed04970e054c0593b44b59a976d3b953c50d668b2fd33330

General

Target
bf8bb0e754afaf42ed04970e054c0593b44b59a976d3b953c50d668b2fd33330N.exe
Size 205KB
Sample241015-v83dyaxfla
SHA256 bf8bb0e754afaf42ed04970e054c0593b44b59a976d3b953c50d668b2fd33330
MD5 2da9599f7e504e28674197743ad38350
SHA1 0b4980363cd81e812add1c9ea4a86f29243da4de
SHA512 503fc9a20c7adaf8968b3b2c9008a5576c5b24674bc6e48f2a98242ecb80d795e624bc8d03a523234b64894537a544c5a0554e3636149c59671168afa686f298
SSDEEP 6144:80yXtBZbJGMwZdH96WSREd+Y/acdBZBA31WooNy0:80y9Bu3d9mEQY/rL49Ey0
MD5 SHA1 SHA512 SSDEEP

Score

6^/10

bootkit discovery persistence upx

Malware Config

Signatures

Enumerates connected drives 3 TTPs 21 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)	\??\o:	bf8bb0e754afaf42ed04970e054c0593b44b59a976d3b953c50d668b2fd33330N.exe
File opened (read-only)	\??\q:	bf8bb0e754afaf42ed04970e054c0593b44b59a976d3b953c50d668b2fd33330N.exe
File opened (read-only)	\??\s:	bf8bb0e754afaf42ed04970e054c0593b44b59a976d3b953c50d668b2fd33330N.exe
File opened (read-only)	\??\g:	bf8bb0e754afaf42ed04970e054c0593b44b59a976d3b953c50d668b2fd33330N.exe
File opened (read-only)	\??\j:	bf8bb0e754afaf42ed04970e054c0593b44b59a976d3b953c50d668b2fd33330N.exe
File opened (read-only)	\??\p:	bf8bb0e754afaf42ed04970e054c0593b44b59a976d3b953c50d668b2fd33330N.exe
File opened (read-only)	\??\u:	bf8bb0e754afaf42ed04970e054c0593b44b59a976d3b953c50d668b2fd33330N.exe
File opened (read-only)	\??\i:	bf8bb0e754afaf42ed04970e054c0593b44b59a976d3b953c50d668b2fd33330N.exe
File opened (read-only)	\??\n:	bf8bb0e754afaf42ed04970e054c0593b44b59a976d3b953c50d668b2fd33330N.exe
File opened (read-only)	\??\r:	bf8bb0e754afaf42ed04970e054c0593b44b59a976d3b953c50d668b2fd33330N.exe
File opened (read-only)	\??\w:	bf8bb0e754afaf42ed04970e054c0593b44b59a976d3b953c50d668b2fd33330N.exe
File opened (read-only)	\??\x:	bf8bb0e754afaf42ed04970e054c0593b44b59a976d3b953c50d668b2fd33330N.exe
File opened (read-only)	\??\z:	bf8bb0e754afaf42ed04970e054c0593b44b59a976d3b953c50d668b2fd33330N.exe
File opened (read-only)	\??\e:	bf8bb0e754afaf42ed04970e054c0593b44b59a976d3b953c50d668b2fd33330N.exe
File opened (read-only)	\??\k:	bf8bb0e754afaf42ed04970e054c0593b44b59a976d3b953c50d668b2fd33330N.exe
File opened (read-only)	\??\l:	bf8bb0e754afaf42ed04970e054c0593b44b59a976d3b953c50d668b2fd33330N.exe
File opened (read-only)	\??\m:	bf8bb0e754afaf42ed04970e054c0593b44b59a976d3b953c50d668b2fd33330N.exe
File opened (read-only)	\??\t:	bf8bb0e754afaf42ed04970e054c0593b44b59a976d3b953c50d668b2fd33330N.exe
File opened (read-only)	\??\v:	bf8bb0e754afaf42ed04970e054c0593b44b59a976d3b953c50d668b2fd33330N.exe
File opened (read-only)	\??\y:	bf8bb0e754afaf42ed04970e054c0593b44b59a976d3b953c50d668b2fd33330N.exe
File opened (read-only)	\??\h:	bf8bb0e754afaf42ed04970e054c0593b44b59a976d3b953c50d668b2fd33330N.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	bf8bb0e754afaf42ed04970e054c0593b44b59a976d3b953c50d668b2fd33330N.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1684-0-0x0000000000400000-0x0000000000475000-memory.dmp	upx
behavioral2/memory/1684-11-0x0000000000400000-0x0000000000475000-memory.dmp	upx
behavioral2/memory/1684-15-0x0000000000400000-0x0000000000475000-memory.dmp	upx
behavioral2/memory/1684-17-0x0000000000400000-0x0000000000475000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\SAItest.txt	bf8bb0e754afaf42ed04970e054c0593b44b59a976d3b953c50d668b2fd33330N.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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	bf8bb0e754afaf42ed04970e054c0593b44b59a976d3b953c50d668b2fd33330N.exe

Modifies system certificate store 2 TTPs 3 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\4EB6D578499B1CCF5F581EAD56BE3D9B6744A5E5	bf8bb0e754afaf42ed04970e054c0593b44b59a976d3b953c50d668b2fd33330N.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\4EB6D578499B1CCF5F581EAD56BE3D9B6744A5E5\Blob = 040000000100000010000000cb17e431673ee209fe455793f30afa1c0f0000000100000014000000e91e1e972b8f467ab4e0598fa92285387dee94c953000000010000006300000030613021060b6086480186f8450107170630123010060a2b0601040182373c0101030200c0301f06096086480186fd6c020130123010060a2b0601040182373c0101030200c0301b060567810c010330123010060a2b0601040182373c0101030200c07f000000010000002a000000302806082b0601050507030206082b0601050507030306082b0601050507030406082b0601050507030109000000010000002a000000302806082b0601050507030206082b0601050507030306082b0601050507030406082b060105050703016200000001000000200000009acfab7e43c8d880d06b262a94deeee4b4659989c3d0caf19baf6405e41ab7df1400000001000000140000007fd365a7c2ddecbbf03009f34339fa02af3331330b000000010000001200000056006500720069005300690067006e0000001d0000000100000010000000c6cbcafa17955c4cfd41eca0c654c3617e000000010000000800000000c0032f2df8d6016800000001000000000000000300000001000000140000004eb6d578499b1ccf5f581ead56be3d9b6744a5e5190000000100000010000000d8b5fb368468620275d142ffd2aade372000000001000000d7040000308204d3308203bba003020102021018dad19e267de8bb4a2158cdcc6b3b4a300d06092a864886f70d01010505003081ca310b300906035504061302555331173015060355040a130e566572695369676e2c20496e632e311f301d060355040b1316566572695369676e205472757374204e6574776f726b313a3038060355040b1331286329203230303620566572695369676e2c20496e632e202d20466f7220617574686f72697a656420757365206f6e6c79314530430603550403133c566572695369676e20436c6173732033205075626c6963205072696d6172792043657274696669636174696f6e20417574686f72697479202d204735301e170d3036313130383030303030305a170d3336303731363233353935395a3081ca310b300906035504061302555331173015060355040a130e566572695369676e2c20496e632e311f301d060355040b1316566572695369676e205472757374204e6574776f726b313a3038060355040b1331286329203230303620566572695369676e2c20496e632e202d20466f7220617574686f72697a656420757365206f6e6c79314530430603550403133c566572695369676e20436c6173732033205075626c6963205072696d6172792043657274696669636174696f6e20417574686f72697479202d20473530820122300d06092a864886f70d01010105000382010f003082010a0282010100af240808297a359e600caae74b3b4edc7cbc3c451cbb2be0fe2902f95708a364851527f5f1adc831895d22e82aaaa642b38ff8b955b7b1b74bb3fe8f7e0757ecef43db66621561cf600da4d8def8e0c362083d5413eb49ca59548526e52b8f1b9febf5a191c23349d843636a524bd28fe870514dd189697bc770f6b3dc1274db7b5d4b56d396bf1577a1b0f4a225f2af1c926718e5f40604ef90b9e400e4dd3ab519ff02baf43ceee08beb378becf4d7acf2f6f03dafdd759133191d1c40cb7424192193d914feac2a52c78fd50449e48d6347883c6983cbfe47bd2b7e4fc595ae0e9dd4d143c06773e314087ee53f9f73b8330acf5d3f3487968aee53e825150203010001a381b23081af300f0603551d130101ff040530030101ff300e0603551d0f0101ff040403020106306d06082b0601050507010c0461305fa15da05b3059305730551609696d6167652f6769663021301f300706052b0e03021a04148fe5d31a86ac8d8e6bc3cf806ad448182c7b192e30251623687474703a2f2f6c6f676f2e766572697369676e2e636f6d2f76736c6f676f2e676966301d0603551d0e041604147fd365a7c2ddecbbf03009f34339fa02af333133300d06092a864886f70d0101050500038201010093244a305f62cfd81a982f3deadc992dbd77f6a5792238ecc4a7a07812ad620e457064c5e797662d98097e5fafd6cc2865f201aa081a47def9f97c925a0869200dd93e6d6e3c0d6ed8e606914018b9f8c1eddfdb41aae09620c9cd64153881c994eea284290b136f8edb0cdd2502dba48b1944d2417a05694a584f60ca7e826a0b02aa251739b5db7fe784652a958abd86de5e8116832d10ccdefda8822a6d281f0d0bc4e5e71a2619e1f4116f10b595fce7420532dbce9d515e28b69e85d35befa57d4540728eb70e6b0e06fb33354871b89d278bc4655f0d86769c447af6955cf65d320833a454b6183f685cf2424a853854835fd1e82cf2ac11d6a8ed636a	bf8bb0e754afaf42ed04970e054c0593b44b59a976d3b953c50d668b2fd33330N.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\4EB6D578499B1CCF5F581EAD56BE3D9B6744A5E5\Blob = 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	bf8bb0e754afaf42ed04970e054c0593b44b59a976d3b953c50d668b2fd33330N.exe

C:\Users\Admin\AppData\Local\Temp\bf8bb0e754afaf42ed04970e054c0593b44b59a976d3b953c50d668b2fd33330N.exe
"C:\Users\Admin\AppData\Local\Temp\bf8bb0e754afaf42ed04970e054c0593b44b59a976d3b953c50d668b2fd33330N.exe"
1⤵
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Modifies system certificate store
PID:1684