gandcrab | ae64d4690bf253e3a08744d6e4bcb8f470c8f62505c013806ba3c9d1b9e95813

Analysis

max time kernel
141s
max time network
144s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
17-05-2023 03:43

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General

Target

malware.exe
Size

248KB
MD5

35d03057d02e656ffe148bbb2523e0c7
SHA1

3ff49986fd966a3157be5b82b5fd02575e99e4bc
SHA256

b535d4dc180f666de891979e5d9d090c27d1eb0f252423c0b1911f1f0b9fc5b2
SHA512

2838c0b31737d93d7e53cb767146ac05f9d86a21264630982a279c7995844e863abd754f9ad63b60b02253fd823d93511a2c90c87ab441bb17521d5431481175
SSDEEP

3072:x3iPmbqzPrLd+9zUhGed8tzm0OofBB61pqnevTglfap0PBNe8mFNTXaCm:x3iRLXd+9wEedAzNOoJB9nevT8CqEFN

Score

10^/10

gandcrab backdoor ransomware spyware stealer

Malware Config

Signatures

GandCrab payload 1 IoCs

resource	yara_rule
behavioral1/memory/2040-969-0x0000000000400000-0x0000000000443000-memory.dmp	family_gandcrab

Gandcrab
Gandcrab is a Trojan horse that encrypts files on a computer.
ransomware backdoor gandcrab
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Modifies extensions of user files 10 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File renamed	C:\Users\Admin\Pictures\ConnectShow.tiff => C:\Users\Admin\Pictures\ConnectShow.tiff.KRAB	malware.exe
File renamed	C:\Users\Admin\Pictures\GroupBlock.tif => C:\Users\Admin\Pictures\GroupBlock.tif.KRAB	malware.exe
File renamed	C:\Users\Admin\Pictures\OutRegister.tif => C:\Users\Admin\Pictures\OutRegister.tif.KRAB	malware.exe
File opened for modification	C:\Users\Admin\Pictures\ProtectPublish.tiff	malware.exe
File renamed	C:\Users\Admin\Pictures\BackupRestore.tif => C:\Users\Admin\Pictures\BackupRestore.tif.KRAB	malware.exe
File opened for modification	C:\Users\Admin\Pictures\FindMount.tiff	malware.exe
File renamed	C:\Users\Admin\Pictures\FindMount.tiff => C:\Users\Admin\Pictures\FindMount.tiff.KRAB	malware.exe
File renamed	C:\Users\Admin\Pictures\ProtectPublish.tiff => C:\Users\Admin\Pictures\ProtectPublish.tiff.KRAB	malware.exe
File renamed	C:\Users\Admin\Pictures\PublishExit.png => C:\Users\Admin\Pictures\PublishExit.png.KRAB	malware.exe
File opened for modification	C:\Users\Admin\Pictures\ConnectShow.tiff	malware.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Enumerates connected drives 3 TTPs 24 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)	\??\B:	malware.exe
File opened (read-only)	\??\F:	malware.exe
File opened (read-only)	\??\H:	malware.exe
File opened (read-only)	\??\P:	malware.exe
File opened (read-only)	\??\Q:	malware.exe
File opened (read-only)	\??\T:	malware.exe
File opened (read-only)	\??\U:	malware.exe
File opened (read-only)	\??\E:	malware.exe
File opened (read-only)	\??\J:	malware.exe
File opened (read-only)	\??\L:	malware.exe
File opened (read-only)	\??\M:	malware.exe
File opened (read-only)	\??\V:	malware.exe
File opened (read-only)	\??\Z:	malware.exe
File opened (read-only)	\??\A:	malware.exe
File opened (read-only)	\??\G:	malware.exe
File opened (read-only)	\??\I:	malware.exe
File opened (read-only)	\??\K:	malware.exe
File opened (read-only)	\??\O:	malware.exe
File opened (read-only)	\??\R:	malware.exe
File opened (read-only)	\??\S:	malware.exe
File opened (read-only)	\??\N:	malware.exe
File opened (read-only)	\??\W:	malware.exe
File opened (read-only)	\??\X:	malware.exe
File opened (read-only)	\??\Y:	malware.exe

Drops file in Program Files directory 45 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\StartSet.vdx	malware.exe
File opened for modification	C:\Program Files\SyncRead.bmp	malware.exe
File created	C:\Program Files (x86)\KRAB-DECRYPT.txt	malware.exe
File created	C:\Program Files (x86)\Microsoft SQL Server Compact Edition\KRAB-DECRYPT.txt	malware.exe
File opened for modification	C:\Program Files\HideApprove.doc	malware.exe
File opened for modification	C:\Program Files\RestartRename.tif	malware.exe
File opened for modification	C:\Program Files\SuspendNew.mpp	malware.exe
File opened for modification	C:\Program Files\GetRename.nfo	malware.exe
File opened for modification	C:\Program Files\DismountSend.ADT	malware.exe
File opened for modification	C:\Program Files\FormatProtect.aiff	malware.exe
File opened for modification	C:\Program Files\ResolveImport.midi	malware.exe
File opened for modification	C:\Program Files\UninstallBlock.pptx	malware.exe
File opened for modification	C:\Program Files\UnprotectCopy.xlsm	malware.exe
File created	C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\KRAB-DECRYPT.txt	malware.exe
File opened for modification	C:\Program Files\ApproveUnprotect.M2T	malware.exe
File opened for modification	C:\Program Files\SkipExpand.vdx	malware.exe
File created	C:\Program Files (x86)\75e5ae3775e5a9d6419.lock	malware.exe
File opened for modification	C:\Program Files\ConvertFromMount.xps	malware.exe
File opened for modification	C:\Program Files\ResetUndo.M2V	malware.exe
File opened for modification	C:\Program Files\ResolveUnregister.vssx	malware.exe
File created	C:\Program Files (x86)\Microsoft SQL Server Compact Edition\75e5ae3775e5a9d6419.lock	malware.exe
File created	C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\KRAB-DECRYPT.txt	malware.exe
File opened for modification	C:\Program Files\HideOut.xltm	malware.exe
File opened for modification	C:\Program Files\CompressRestart.vstm	malware.exe
File opened for modification	C:\Program Files\EditStop.dib	malware.exe
File opened for modification	C:\Program Files\ProtectComplete.png	malware.exe
File opened for modification	C:\Program Files\RepairDeny.mpeg2	malware.exe
File opened for modification	C:\Program Files\UpdateGrant.wdp	malware.exe
File opened for modification	C:\Program Files\WaitEdit.MTS	malware.exe
File created	C:\Program Files\75e5ae3775e5a9d6419.lock	malware.exe
File opened for modification	C:\Program Files\ExitUnblock.3g2	malware.exe
File opened for modification	C:\Program Files\InvokeEnter.mpe	malware.exe
File opened for modification	C:\Program Files\TestRead.mp3	malware.exe
File opened for modification	C:\Program Files\UnblockEnter.mpg	malware.exe
File created	C:\Program Files\KRAB-DECRYPT.txt	malware.exe
File opened for modification	C:\Program Files\CompareUnregister.reg	malware.exe
File opened for modification	C:\Program Files\ProtectCheckpoint.mpeg3	malware.exe
File opened for modification	C:\Program Files\RedoDeny.ogg	malware.exe
File opened for modification	C:\Program Files\SelectMerge.bmp	malware.exe
File opened for modification	C:\Program Files\SendRemove.html	malware.exe
File opened for modification	C:\Program Files\SwitchRevoke.xltx	malware.exe
File opened for modification	C:\Program Files\SyncRedo.mp4	malware.exe
File opened for modification	C:\Program Files\BackupComplete.htm	malware.exe
File created	C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\75e5ae3775e5a9d6419.lock	malware.exe
File created	C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\75e5ae3775e5a9d6419.lock	malware.exe

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	malware.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	malware.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	malware.exe

Modifies system certificate store 2 TTPs 7 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

description	ioc	Process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\317A2AD07F2B335EF5A1C34E4B57E8B7D8F1FCA6\Blob = 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	malware.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\AD7E1C28B064EF8F6003402014C3D0E3370EB58A	malware.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\AD7E1C28B064EF8F6003402014C3D0E3370EB58A\Blob = 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	malware.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\AD7E1C28B064EF8F6003402014C3D0E3370EB58A\Blob = 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	malware.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\317A2AD07F2B335EF5A1C34E4B57E8B7D8F1FCA6	malware.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\317A2AD07F2B335EF5A1C34E4B57E8B7D8F1FCA6\Blob = 0f000000010000001400000007eeabaf80a9ef4ae1b2cb9b4b5fc70d0428e6a953000000010000004800000030463021060b6086480186fd6d0107170330123010060a2b0601040182373c0101030200c03021060b6086480186fd6e0107170330123010060a2b0601040182373c0101030200c00b000000010000002e00000053007400610072006600690065006c006400200054006500630068006e006f006c006f0067006900650073000000090000000100000016000000301406082b0601050507030406082b06010505070301140000000100000014000000a848b4242fc6ea24a0d78e3cb93c5c78d79833e41d00000001000000100000005959ddbc9c7632ba0a05f06316846fe6030000000100000014000000317a2ad07f2b335ef5a1c34e4b57e8b7d8f1fca62000000001000000eb020000308202e730820250020101300d06092a864886f70d01010505003081bb312430220603550407131b56616c69436572742056616c69646174696f6e204e6574776f726b31173015060355040a130e56616c69436572742c20496e632e31353033060355040b132c56616c694365727420436c617373203220506f6c6963792056616c69646174696f6e20417574686f726974793121301f06035504031318687474703a2f2f7777772e76616c69636572742e636f6d2f3120301e06092a864886f70d0109011611696e666f4076616c69636572742e636f6d301e170d3939303632363030313935345a170d3139303632363030313935345a3081bb312430220603550407131b56616c69436572742056616c69646174696f6e204e6574776f726b31173015060355040a130e56616c69436572742c20496e632e31353033060355040b132c56616c694365727420436c617373203220506f6c6963792056616c69646174696f6e20417574686f726974793121301f06035504031318687474703a2f2f7777772e76616c69636572742e636f6d2f3120301e06092a864886f70d0109011611696e666f4076616c69636572742e636f6d30819f300d06092a864886f70d010101050003818d0030818902818100ce3a71cae5abc8599255d7abd8740ef9eed9f655475965470e0555dceb98363c5c535dd330cf38ecbd4189ed254209246b0a5eb37cdd522d4ce6d4d67d5a59a965d449132d244d1c506fb5c185543bfe71e4d35c42f980e0911a0a5b393667f33f557c1b3fb45f647334e3b412bf8764f8da12ff3727c1b343bbef7b6e2e69f70203010001300d06092a864886f70d0101050500038181003b7f506f6f509499496238381f4bf8a5c83ea78281f62bc7e8c5cee83a1082cb18008e4dbda8587fa17900b5bbe98daf41d90f34ee218119a0324928f4c48e56d55233fd50d57e996c03e4c94cfccb6cab66b34a218ce5b50c323e10b2cc6ca1dc9a984c025bf3ceb99ea5720e4ab73f3ce61668f8beed744cbc5bd5621f43dd	malware.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\317A2AD07F2B335EF5A1C34E4B57E8B7D8F1FCA6\Blob = 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	malware.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2040	malware.exe
2040	malware.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1908	wmic.exe
Token: SeSecurityPrivilege	1908	wmic.exe
Token: SeTakeOwnershipPrivilege	1908	wmic.exe
Token: SeLoadDriverPrivilege	1908	wmic.exe
Token: SeSystemProfilePrivilege	1908	wmic.exe
Token: SeSystemtimePrivilege	1908	wmic.exe
Token: SeProfSingleProcessPrivilege	1908	wmic.exe
Token: SeIncBasePriorityPrivilege	1908	wmic.exe
Token: SeCreatePagefilePrivilege	1908	wmic.exe
Token: SeBackupPrivilege	1908	wmic.exe
Token: SeRestorePrivilege	1908	wmic.exe
Token: SeShutdownPrivilege	1908	wmic.exe
Token: SeDebugPrivilege	1908	wmic.exe
Token: SeSystemEnvironmentPrivilege	1908	wmic.exe
Token: SeRemoteShutdownPrivilege	1908	wmic.exe
Token: SeUndockPrivilege	1908	wmic.exe
Token: SeManageVolumePrivilege	1908	wmic.exe
Token: 33	1908	wmic.exe
Token: 34	1908	wmic.exe
Token: 35	1908	wmic.exe
Token: SeIncreaseQuotaPrivilege	1908	wmic.exe
Token: SeSecurityPrivilege	1908	wmic.exe
Token: SeTakeOwnershipPrivilege	1908	wmic.exe
Token: SeLoadDriverPrivilege	1908	wmic.exe
Token: SeSystemProfilePrivilege	1908	wmic.exe
Token: SeSystemtimePrivilege	1908	wmic.exe
Token: SeProfSingleProcessPrivilege	1908	wmic.exe
Token: SeIncBasePriorityPrivilege	1908	wmic.exe
Token: SeCreatePagefilePrivilege	1908	wmic.exe
Token: SeBackupPrivilege	1908	wmic.exe
Token: SeRestorePrivilege	1908	wmic.exe
Token: SeShutdownPrivilege	1908	wmic.exe
Token: SeDebugPrivilege	1908	wmic.exe
Token: SeSystemEnvironmentPrivilege	1908	wmic.exe
Token: SeRemoteShutdownPrivilege	1908	wmic.exe
Token: SeUndockPrivilege	1908	wmic.exe
Token: SeManageVolumePrivilege	1908	wmic.exe
Token: 33	1908	wmic.exe
Token: 34	1908	wmic.exe
Token: 35	1908	wmic.exe
Token: SeBackupPrivilege	860	vssvc.exe
Token: SeRestorePrivilege	860	vssvc.exe
Token: SeAuditPrivilege	860	vssvc.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2040 wrote to memory of 1908	2040	malware.exe	31
PID 2040 wrote to memory of 1908	2040	malware.exe	31
PID 2040 wrote to memory of 1908	2040	malware.exe	31
PID 2040 wrote to memory of 1908	2040	malware.exe	31

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\malware.exe
"C:\Users\Admin\AppData\Local\Temp\malware.exe"
1⤵
- Modifies extensions of user files
- Enumerates connected drives
- Drops file in Program Files directory
- Checks processor information in registry
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2040
- C:\Windows\SysWOW64\wbem\wmic.exe
  "C:\Windows\system32\wbem\wmic.exe" shadowcopy delete
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1908

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:860

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File Deletion

T1107

Install Root Certificate

T1130

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Inhibit System Recovery

T1490

Replay Monitor

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Downloads

C:\MSOCache\KRAB-DECRYPT.txt

Filesize
8KB

MD5
9f47c1df0855a25e6e7ddceceb07166f

SHA1
05df4a950ca6c150f987def87371b8bb9f80f50b

SHA256
148fa840cf7441722f00ea961391738eb1a2473503afe2a03efc775855d03d37

SHA512
aa7df3c7036a212b5637a1d5657818d78093d0d88d77cdb5ea42741b9357804f3b0c904e052c18a27d78fc708cd42895768100a8c21ffd86db74f5469920c6c6

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

Filesize
62KB

MD5
3ac860860707baaf32469fa7cc7c0192

SHA1
c33c2acdaba0e6fa41fd2f00f186804722477639

SHA256
d015145d551ecd14916270efad773bbc9fd57fad2228d2c24559f696c961d904

SHA512
d62ad2408c969a95550fb87efda50f988770ba5e39972041bf85924275baf156b8bec309ecc6409e5acdd37ec175dea40eff921ab58933b5b5b5d35a6147567c

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

Filesize
344B

MD5
d6d27f47293b5edabcf80af3509df594

SHA1
4475aa6df18a0515a2d0b32abc31fb57ec8f71f3

SHA256
0148c5f6d1fc2cd9fa18a62a605f6b7417ba8bb902a6bf6a49a17fde34bb5625

SHA512
0665fbde0f0817082551857380a5cdc0336cb4cf79daecd7ddf61b2dd9ad0cfa711e4ed5178171e1b5d042d8b03ae8103969b2f82360d5a9a8a8ec08af7c7657

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar327E.tmp

Filesize
164KB

MD5
4ff65ad929cd9a367680e0e5b1c08166

SHA1
c0af0d4396bd1f15c45f39d3b849ba444233b3a2

SHA256
c8733c93cc5aaf5ca206d06af22ee8dbdec764fb5085019a6a9181feb9dfdee6

SHA512
f530dc0d024a5a3b8903ffaaa41b608a5ccdd6da4ba1949f2c2e55a9fca475fec5c8d2119b5763cabe7ef1c3788fb9dcac621869db51d65b1d83cfe404fb4c27

Download Submit
memory/2040-969-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download