7d0f7d4dd28130bf130a16fc125a37e7fa4f56900fad7f02fadcf609788d1948

General

Target

New Project Script - Linkvertise Downloader_I1-gKu1.exe
Size

10.8MB
MD5

9ef88d8681a8606d5572078acfef47d5
SHA1

7d78745444359b634c1fd8f0c4f5bcc11a601daf
SHA256

7d0f7d4dd28130bf130a16fc125a37e7fa4f56900fad7f02fadcf609788d1948
SHA512

f9106049cf41fe67f1e97f1eb12bbb4a3c4dfc72252893aca3413c305ee62210b416d1ad160bf0c9b9a1313e404a406e400f74d3d49b13c0d0d5d363b8cc0ba5
SSDEEP

196608:R38JJEU16hTZl583S0LJu+mzfDkzXJKUNWGJ3k2ZoXOM1ughp71:21MlCC0Ybzf4zZKUok5oXN8i1

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2028	New Project Script - Linkvertise Downloader_I1-gKu1.tmp

Loads dropped DLL 3 IoCs

pid	Process
1704	New Project Script - Linkvertise Downloader_I1-gKu1.exe
2028	New Project Script - Linkvertise Downloader_I1-gKu1.tmp
2028	New Project Script - Linkvertise Downloader_I1-gKu1.tmp

Modifies system certificate store 2 TTPs 4 IoCs

Install Root Certificate

T1130

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\317A2AD07F2B335EF5A1C34E4B57E8B7D8F1FCA6	New Project Script - Linkvertise Downloader_I1-gKu1.tmp
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\317A2AD07F2B335EF5A1C34E4B57E8B7D8F1FCA6\Blob = 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	New Project Script - Linkvertise Downloader_I1-gKu1.tmp
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\317A2AD07F2B335EF5A1C34E4B57E8B7D8F1FCA6\Blob = 19000000010000001000000044ba5fd9039fc9b56fd8aadccd597ca6030000000100000014000000317a2ad07f2b335ef5a1c34e4b57e8b7d8f1fca61d00000001000000100000005959ddbc9c7632ba0a05f06316846fe6140000000100000014000000a848b4242fc6ea24a0d78e3cb93c5c78d79833e4090000000100000016000000301406082b0601050507030406082b060105050703010b000000010000002e00000053007400610072006600690065006c006400200054006500630068006e006f006c006f006700690065007300000053000000010000004800000030463021060b6086480186fd6d0107170330123010060a2b0601040182373c0101030200c03021060b6086480186fd6e0107170330123010060a2b0601040182373c0101030200c00f000000010000001400000007eeabaf80a9ef4ae1b2cb9b4b5fc70d0428e6a92000000001000000eb020000308202e730820250020101300d06092a864886f70d01010505003081bb312430220603550407131b56616c69436572742056616c69646174696f6e204e6574776f726b31173015060355040a130e56616c69436572742c20496e632e31353033060355040b132c56616c694365727420436c617373203220506f6c6963792056616c69646174696f6e20417574686f726974793121301f06035504031318687474703a2f2f7777772e76616c69636572742e636f6d2f3120301e06092a864886f70d0109011611696e666f4076616c69636572742e636f6d301e170d3939303632363030313935345a170d3139303632363030313935345a3081bb312430220603550407131b56616c69436572742056616c69646174696f6e204e6574776f726b31173015060355040a130e56616c69436572742c20496e632e31353033060355040b132c56616c694365727420436c617373203220506f6c6963792056616c69646174696f6e20417574686f726974793121301f06035504031318687474703a2f2f7777772e76616c69636572742e636f6d2f3120301e06092a864886f70d0109011611696e666f4076616c69636572742e636f6d30819f300d06092a864886f70d010101050003818d0030818902818100ce3a71cae5abc8599255d7abd8740ef9eed9f655475965470e0555dceb98363c5c535dd330cf38ecbd4189ed254209246b0a5eb37cdd522d4ce6d4d67d5a59a965d449132d244d1c506fb5c185543bfe71e4d35c42f980e0911a0a5b393667f33f557c1b3fb45f647334e3b412bf8764f8da12ff3727c1b343bbef7b6e2e69f70203010001300d06092a864886f70d0101050500038181003b7f506f6f509499496238381f4bf8a5c83ea78281f62bc7e8c5cee83a1082cb18008e4dbda8587fa17900b5bbe98daf41d90f34ee218119a0324928f4c48e56d55233fd50d57e996c03e4c94cfccb6cab66b34a218ce5b50c323e10b2cc6ca1dc9a984c025bf3ceb99ea5720e4ab73f3ce61668f8beed744cbc5bd5621f43dd	New Project Script - Linkvertise Downloader_I1-gKu1.tmp
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\317A2AD07F2B335EF5A1C34E4B57E8B7D8F1FCA6\Blob = 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	New Project Script - Linkvertise Downloader_I1-gKu1.tmp

Script User-Agent 1 IoCs

Uses user-agent string associated with script host/environment.

description	flow	ioc
HTTP User-Agent header	2	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1704 wrote to memory of 2028	1704	New Project Script - Linkvertise Downloader_I1-gKu1.exe	27
PID 1704 wrote to memory of 2028	1704	New Project Script - Linkvertise Downloader_I1-gKu1.exe	27
PID 1704 wrote to memory of 2028	1704	New Project Script - Linkvertise Downloader_I1-gKu1.exe	27
PID 1704 wrote to memory of 2028	1704	New Project Script - Linkvertise Downloader_I1-gKu1.exe	27
PID 1704 wrote to memory of 2028	1704	New Project Script - Linkvertise Downloader_I1-gKu1.exe	27
PID 1704 wrote to memory of 2028	1704	New Project Script - Linkvertise Downloader_I1-gKu1.exe	27
PID 1704 wrote to memory of 2028	1704	New Project Script - Linkvertise Downloader_I1-gKu1.exe	27

C:\Users\Admin\AppData\Local\Temp\New Project Script - Linkvertise Downloader_I1-gKu1.exe
"C:\Users\Admin\AppData\Local\Temp\New Project Script - Linkvertise Downloader_I1-gKu1.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1704
- C:\Users\Admin\AppData\Local\Temp\is-1KDQ9.tmp\New Project Script - Linkvertise Downloader_I1-gKu1.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-1KDQ9.tmp\New Project Script - Linkvertise Downloader_I1-gKu1.tmp" /SL5="$70122,10376221,1235456,C:\Users\Admin\AppData\Local\Temp\New Project Script - Linkvertise Downloader_I1-gKu1.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Modifies system certificate store
  PID:2028

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Install Root Certificate

Modify Registry

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
61KB

MD5
e71c8443ae0bc2e282c73faead0a6dd3

SHA1
0c110c1b01e68edfacaeae64781a37b1995fa94b

SHA256
95b0a5acc5bf70d3abdfd091d0c9f9063aa4fde65bd34dbf16786082e1992e72

SHA512
b38458c7fa2825afb72794f374827403d5946b1132e136a0ce075dfd351277cf7d957c88dc8a1e4adc3bcae1fa8010dae3831e268e910d517691de24326391a6

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
7943b582c033df1b1fe9b2ff3db4841f

SHA1
9354babaf8ef588c048c88330aa282d2fc199a22

SHA256
eef16a1b9f9c5a6f0e8d9f30785f2e004f6a13f1dfe170ab500d93c859c9893e

SHA512
9488f5b0146d73c7e313c6cbb3fb019e341cc3adfdc4ade9ed6c45fcc68ccc0a47de4e8e8521e7bfa13d3f50c87f04ecc7cac84d6dbfccbde7fac8db5708c902

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar4ABE.tmp

Filesize
161KB

MD5
be2bec6e8c5653136d3e72fe53c98aa3

SHA1
a8182d6db17c14671c3d5766c72e58d87c0810de

SHA256
1919aab2a820642490169bdc4e88bd1189e22f83e7498bf8ebdfb62ec7d843fd

SHA512
0d1424ccdf0d53faf3f4e13d534e12f22388648aa4c23edbc503801e3c96b7f73c7999b760b5bef4b5e9dd923dffe21a21889b1ce836dd428420bf0f4f5327ff

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-1KDQ9.tmp\New Project Script - Linkvertise Downloader_I1-gKu1.tmp

Filesize
3.4MB

MD5
fbbad8149a1c6aed741101d3011757cb

SHA1
badef69a28b857fdd0b9859552736faba9e8886a

SHA256
d5f92ec4e4f095bea8fb56825333eaa6c3fb5e3b2dfc245bac058cdfb6cef4b8

SHA512
edc6d6cba79cc6d595cdc72f448189e9d5f5b0208c09bbfdd6344cd029848ec155e5aa744eac437a13f14f61b0297308b36df90b190a138e4c34aa8bb45d3b42

Download Submit
\Users\Admin\AppData\Local\Temp\is-1KDQ9.tmp\New Project Script - Linkvertise Downloader_I1-gKu1.tmp

Filesize
3.4MB

MD5
fbbad8149a1c6aed741101d3011757cb

SHA1
badef69a28b857fdd0b9859552736faba9e8886a

SHA256
d5f92ec4e4f095bea8fb56825333eaa6c3fb5e3b2dfc245bac058cdfb6cef4b8

SHA512
edc6d6cba79cc6d595cdc72f448189e9d5f5b0208c09bbfdd6344cd029848ec155e5aa744eac437a13f14f61b0297308b36df90b190a138e4c34aa8bb45d3b42

Download Submit
\Users\Admin\AppData\Local\Temp\is-ET3D4.tmp\AppUtils.dll

Filesize
1.8MB

MD5
43ce6d593abd5141a3139603f352ae05

SHA1
a97c75e23d275dddfde15ef5fdf3ff3253c0992c

SHA256
94e874f2702ea6be50e7d74864b66e7f763449c3db237803f3fad6adfd64ed3d

SHA512
bfc527529e5f73ba190dfc5bd043175c7e2ae963b665d6d39421c29e025020f1d593dc88b7bee33d86ef6b4f7a4c5e1a0339df4e99cab6849a275d1dda9f439f

Download Submit
\Users\Admin\AppData\Local\Temp\is-ET3D4.tmp\botva2.dll

Filesize
37KB

MD5
67965a5957a61867d661f05ae1f4773e

SHA1
f14c0a4f154dc685bb7c65b2d804a02a0fb2360d

SHA256
450b9b0ba25bf068afbc2b23d252585a19e282939bf38326384ea9112dfd0105

SHA512
c6942818b9026dc5db2d62999d32cf99fe7289f79a28b8345af17acf9d13b2229a5e917a48ff1f6d59715bdbcb00c1625e0302abcfe10ca7e0475762e0a3f41b

Download Submit
memory/1704-54-0x0000000000400000-0x000000000053B000-memory.dmp

Filesize
1.2MB

Download
memory/1704-195-0x0000000000400000-0x000000000053B000-memory.dmp

Filesize
1.2MB

Download
memory/1704-208-0x0000000000400000-0x000000000053B000-memory.dmp

Filesize
1.2MB

Download
memory/2028-73-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2028-196-0x0000000000400000-0x0000000000775000-memory.dmp

Filesize
3.5MB

Download
memory/2028-197-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2028-199-0x0000000003780000-0x000000000378F000-memory.dmp

Filesize
60KB

Download
memory/2028-206-0x0000000000400000-0x0000000000775000-memory.dmp

Filesize
3.5MB

Download

Analysis

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