03a0091fa09d38ff01286abc3c920c62cd0c7a57a7d2b338e221d8f259fc28ce

General

Target

4b387ae9bf23015f02e6912545daed19.exe
Size

385KB
MD5

4b387ae9bf23015f02e6912545daed19
SHA1

dea98393b6ae92a7155433c6155f9eaf578e9197
SHA256

03a0091fa09d38ff01286abc3c920c62cd0c7a57a7d2b338e221d8f259fc28ce
SHA512

e9fec24808c756f800c10df92c0e2b23975ae878833194fb5061cd73f413860704ed33e48c5403df7425a3ec3e3bc5fb8d738f503f324e86fda52da14220400f
SSDEEP

12288:gbb6F/1iDIbIUHblc9VKrZM0mBJwgYwRn24HB:AbQ8IhJYV3vkgH2AB

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1736	4b387ae9bf23015f02e6912545daed19.exe

Executes dropped EXE 1 IoCs

pid	Process
1736	4b387ae9bf23015f02e6912545daed19.exe

Loads dropped DLL 1 IoCs

pid	Process
1460	4b387ae9bf23015f02e6912545daed19.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Modifies system certificate store 2 TTPs 3 IoCs

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474	4b387ae9bf23015f02e6912545daed19.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474\Blob = 0f0000000100000014000000ce0e658aa3e847e467a147b3049191093d055e6f0b0000000100000034000000420061006c00740069006d006f007200650020004300790062006500720054007200750073007400200052006f006f007400000053000000010000002400000030223020060a2b06010401b13e01640130123010060a2b0601040182373c0101030200c0140000000100000014000000e59d5930824758ccacfa085436867b3ab5044df01d0000000100000010000000918ad43a9475f78bb5243de886d8103c09000000010000000c000000300a06082b06010505070301030000000100000014000000d4de20d05e66fc53fe1a50882c78db2852cae47420000000010000007b030000308203773082025fa0030201020204020000b9300d06092a864886f70d0101050500305a310b300906035504061302494531123010060355040a130942616c74696d6f726531133011060355040b130a43796265725472757374312230200603550403131942616c74696d6f7265204379626572547275737420526f6f74301e170d3030303531323138343630305a170d3235303531323233353930305a305a310b300906035504061302494531123010060355040a130942616c74696d6f726531133011060355040b130a43796265725472757374312230200603550403131942616c74696d6f7265204379626572547275737420526f6f7430820122300d06092a864886f70d01010105000382010f003082010a0282010100a304bb22ab983d57e826729ab579d429e2e1e89580b1b0e35b8e2b299a64dfa15dedb009056ddb282ece62a262feb488da12eb38eb219dc0412b01527b8877d31c8fc7bab988b56a09e773e81140a7d1ccca628d2de58f0ba650d2a850c328eaf5ab25878a9a961ca967b83f0cd5f7f952132fc21bd57070f08fc012ca06cb9ae1d9ca337a77d6f8ecb9f16844424813d2c0c2a4ae5e60feb6a605fcb4dd075902d459189863f5a563e0900c7d5db2067af385eaebd403ae5e843e5fff15ed69bcf939367275cf77524df3c9902cb93de5c923533f1f2498215c079929bdc63aece76e863a6b97746333bd681831f0788d76bffc9e8e5d2a86a74d90dc271a390203010001a3453043301d0603551d0e04160414e59d5930824758ccacfa085436867b3ab5044df030120603551d130101ff040830060101ff020103300e0603551d0f0101ff040403020106300d06092a864886f70d01010505000382010100850c5d8ee46f51684205a0ddbb4f27258403bdf764fd2dd730e3a41017ebda2929b6793f76f6191323b8100af958a4d46170bd04616a128a17d50abdc5bc307cd6e90c258d86404feccca37e38c637114feddd68318e4cd2b30174eebe755e07481a7f70ff165c84c07985b805fd7fbe6511a30fc002b4f852373904d5a9317a18bfa02af41299f7a34582e33c5ef59d9eb5c89e7c2ec8a49e4e08144b6dfd706d6b1a63bd64e61fb7cef0f29f2ebb1bb7f250887392c2e2e3168d9a3202ab8e18dde91011ee7e35ab90af3e30947ad0333da7650ff5fc8e9e62cf47442c015dbb1db532d247d2382ed0fe81dc326a1eb5ee3cd5fce7811d19c32442ea6339a9	4b387ae9bf23015f02e6912545daed19.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474\Blob = 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	4b387ae9bf23015f02e6912545daed19.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1460	4b387ae9bf23015f02e6912545daed19.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1460	4b387ae9bf23015f02e6912545daed19.exe
1736	4b387ae9bf23015f02e6912545daed19.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1460 wrote to memory of 1736	1460	4b387ae9bf23015f02e6912545daed19.exe	28
PID 1460 wrote to memory of 1736	1460	4b387ae9bf23015f02e6912545daed19.exe	28
PID 1460 wrote to memory of 1736	1460	4b387ae9bf23015f02e6912545daed19.exe	28
PID 1460 wrote to memory of 1736	1460	4b387ae9bf23015f02e6912545daed19.exe	28

C:\Users\Admin\AppData\Local\Temp\4b387ae9bf23015f02e6912545daed19.exe
"C:\Users\Admin\AppData\Local\Temp\4b387ae9bf23015f02e6912545daed19.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: RenamesItself
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1460
- C:\Users\Admin\AppData\Local\Temp\4b387ae9bf23015f02e6912545daed19.exe
  C:\Users\Admin\AppData\Local\Temp\4b387ae9bf23015f02e6912545daed19.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Modifies system certificate store
  - Suspicious use of UnmapMainImage
  PID:1736

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Subvert Trust Controls

1

T1553

Install Root Certificate

1

T1553.004

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

Filesize
65KB

MD5
ac05d27423a85adc1622c714f2cb6184

SHA1
b0fe2b1abddb97837ea0195be70ab2ff14d43198

SHA256
c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

SHA512
6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

Download Submit
C:\Users\Admin\AppData\Local\Temp\4b387ae9bf23015f02e6912545daed19.exe

Filesize
345KB

MD5
c5f4052b681488b89374a927108aa207

SHA1
f1e5f0a4076d8b50dbe386012657d6025b1582c3

SHA256
8cfe62a61465fec32a92c33daed6d1fc8b36cd738e2028b1587934b7df47d299

SHA512
685b8a5bb0e3c31c88c509dafd98fff833e26f7befda889d22dc06e025603caa535a7bf88da6653bf95536e9003e33edc567a9e20d73212af030d7f39d6c39dd

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar1AE5.tmp

Filesize
171KB

MD5
9c0c641c06238516f27941aa1166d427

SHA1
64cd549fb8cf014fcd9312aa7a5b023847b6c977

SHA256
4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

SHA512
936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

Download Submit
\Users\Admin\AppData\Local\Temp\4b387ae9bf23015f02e6912545daed19.exe

Filesize
375KB

MD5
e43a797a1283d2ec0f6fd97f3f01cb55

SHA1
244b3a09345ca7c41c9621122812ced5d3bf2172

SHA256
a97d496d4cd962907897635dca32c2923bf5b9c91ca917ed492178cdfb0adec8

SHA512
fe55d837a373505ea1846ff5230f40b157e4db60e9186f403e877d22f6c11fef6aa9d4c304b40d0faef05e7074648021cd85364adad7818b61a160e8428577e4

Download Submit
memory/1460-1-0x0000000000400000-0x000000000045F000-memory.dmp

Filesize
380KB

Download
memory/1460-2-0x0000000000190000-0x00000000001F6000-memory.dmp

Filesize
408KB

Download
memory/1460-0-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/1460-14-0x0000000000400000-0x000000000045F000-memory.dmp

Filesize
380KB

Download
memory/1736-26-0x0000000001470000-0x00000000014CF000-memory.dmp

Filesize
380KB

Download
memory/1736-22-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1736-19-0x0000000000190000-0x00000000001F6000-memory.dmp

Filesize
408KB

Download
memory/1736-16-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/1736-81-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1736-86-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1736-87-0x000000000DC60000-0x000000000DC9C000-memory.dmp

Filesize
240KB

Download
memory/1736-88-0x000000000DC60000-0x000000000DC9C000-memory.dmp

Filesize
240KB

Download

Analysis

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