b3f4968dcd921475719b3cd9fa56c58c4f35d66676d8871a8a8a921b49e96aab

Analysis

max time kernel
151s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
06/11/2022, 13:44

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General

Target

b3f4968dcd921475719b3cd9fa56c58c4f35d66676d8871a8a8a921b49e96aab.exe
Size

1.0MB
MD5

21fb409ef5c5867d881b4b2ed84d46dc
SHA1

d987182e3b1ca9cd68ae94b24eca4ca1b61b5c13
SHA256

b3f4968dcd921475719b3cd9fa56c58c4f35d66676d8871a8a8a921b49e96aab
SHA512

45d025971a463e6989fbe803e2065ad9e809f368643ded946ba1b6e4673c3f616ff9d242024761c616c9d3b165a29efb0651ed945965f12fef76fff0db44feb9
SSDEEP

24576:BguFhCwUuqDluBMfEhJX3z5mKhwbLeoMvUlt:ThxqDosEL3F/w+vKt

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 4 IoCs

pid	Process
1644	smes.exe
3220	smes.exe
4796	smes.exe
2356	smes.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	b3f4968dcd921475719b3cd9fa56c58c4f35d66676d8871a8a8a921b49e96aab.exe

Loads dropped DLL 6 IoCs

pid	Process
5076	b3f4968dcd921475719b3cd9fa56c58c4f35d66676d8871a8a8a921b49e96aab.exe
5076	b3f4968dcd921475719b3cd9fa56c58c4f35d66676d8871a8a8a921b49e96aab.exe
4796	smes.exe
2356	smes.exe
2356	smes.exe
2356	smes.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
5076	b3f4968dcd921475719b3cd9fa56c58c4f35d66676d8871a8a8a921b49e96aab.exe
5076	b3f4968dcd921475719b3cd9fa56c58c4f35d66676d8871a8a8a921b49e96aab.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1644	smes.exe
Token: SeDebugPrivilege	3220	smes.exe
Token: SeDebugPrivilege	4796	smes.exe
Token: 33	4796	smes.exe
Token: SeIncBasePriorityPrivilege	4796	smes.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2356	smes.exe
2356	smes.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 5076 wrote to memory of 4568	5076	b3f4968dcd921475719b3cd9fa56c58c4f35d66676d8871a8a8a921b49e96aab.exe	81
PID 5076 wrote to memory of 4568	5076	b3f4968dcd921475719b3cd9fa56c58c4f35d66676d8871a8a8a921b49e96aab.exe	81
PID 5076 wrote to memory of 4568	5076	b3f4968dcd921475719b3cd9fa56c58c4f35d66676d8871a8a8a921b49e96aab.exe	81
PID 5076 wrote to memory of 5020	5076	b3f4968dcd921475719b3cd9fa56c58c4f35d66676d8871a8a8a921b49e96aab.exe	83
PID 5076 wrote to memory of 5020	5076	b3f4968dcd921475719b3cd9fa56c58c4f35d66676d8871a8a8a921b49e96aab.exe	83
PID 5076 wrote to memory of 5020	5076	b3f4968dcd921475719b3cd9fa56c58c4f35d66676d8871a8a8a921b49e96aab.exe	83
PID 4568 wrote to memory of 1644	4568	cmd.exe	85
PID 4568 wrote to memory of 1644	4568	cmd.exe	85
PID 4568 wrote to memory of 1644	4568	cmd.exe	85
PID 4568 wrote to memory of 3220	4568	cmd.exe	86
PID 4568 wrote to memory of 3220	4568	cmd.exe	86
PID 4568 wrote to memory of 3220	4568	cmd.exe	86
PID 4796 wrote to memory of 2356	4796	smes.exe	88
PID 4796 wrote to memory of 2356	4796	smes.exe	88
PID 4796 wrote to memory of 2356	4796	smes.exe	88

C:\Users\Admin\AppData\Local\Temp\b3f4968dcd921475719b3cd9fa56c58c4f35d66676d8871a8a8a921b49e96aab.exe
"C:\Users\Admin\AppData\Local\Temp\b3f4968dcd921475719b3cd9fa56c58c4f35d66676d8871a8a8a921b49e96aab.exe"
1⤵
- Checks computer location settings
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:5076
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c "C:\ProgramData\smes\u.bat"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4568
- - C:\ProgramData\smes\smes.exe
    smes.exe -install
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:1644
- - C:\ProgramData\smes\smes.exe
    smes.exe -start
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:3220
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\temg_tmp.bat"
  2⤵
  PID:5020

C:\ProgramData\smes\smes.exe
C:\ProgramData\smes\smes.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4796
- C:\ProgramData\smes\smes.exe
  C:\ProgramData\smes\smes.exe -run
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetWindowsHookEx
  PID:2356

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\kingsoft\kws\kws.ini

Filesize
720B

MD5
ffc3088dc68b14616fc334ce25f7c4ec

SHA1
83ea5e504ba582fd0db81371888b2d2d36012af8

SHA256
f39e009b78bbca138cf7ca72023390afe0e9ab1980eb0e326e637186a1249872

SHA512
b3c29e4513ba21d9588661eeffe029bdc5a2317cb3345cbe945f50df9688732d478e614e67a64f87d9cdf2c284eaeb9c497feef69ee71a621f4fc009bf1c09b4

Download Submit
C:\ProgramData\smes\KWSSVC.log

Filesize
202B

MD5
1034142300e03c33788405c59d867c68

SHA1
e4dd92ce7164908c7aef6ca90fff288599c813f6

SHA256
51dacc013329a2f16818906f2c06a995110dd90d3ac07f294fdaabf936bf1f7e

SHA512
f75f9ce7ab699db84e0a037a765ff241fd67a2ad2c5d54a6c4f6ab5452c447e67b50bfd9479c1f3760ec6c6966bd9babb4c4b1921981794b937fef3c7ad5dad3

Download Submit
C:\ProgramData\smes\KWSSVC.log

Filesize
356B

MD5
48ae114311450c09f0a2f9422d2a977d

SHA1
43b5077c48d18e5a799ba4cfc31a283332641bab

SHA256
65d9578c62273f23fa1d14542d6c6efad78890b02a1ba2b25de9e9d96b5b75c4

SHA512
43af7c635b8af584b2a7bfd6cb39727e8c973b50a8094f57adfea33c79b4341c81959c19e182d4b9d90c33c691be04ebe07e025d0b79eecec6936c4da73f7811

Download Submit
C:\ProgramData\smes\KWSSVC.log

Filesize
546B

MD5
1f359a4f1e581217e48aa57538da34ea

SHA1
47d50e6ac2c406d1965c3f1157c159b99c5afdc2

SHA256
4e4d5d5ae449a5b75baf5421da662fe8d42f75b0737ae54f9d0249c7e1244b95

SHA512
cfa446566bb67c3426c5a27938fae1aaba6fd33e24efa764ce989d4e34baba42b93012f73b3250d07d0cdc257eb28a498f4eca7f7957be55d26c5d6977885099

Download Submit
C:\ProgramData\smes\kswebshield.dll

Filesize
441KB

MD5
7851449473178f9782263d51bc5e3bbc

SHA1
ad5148ee1bed2348b320c62c025d52fbcbb28799

SHA256
c3bc7ec8428f0bb210a0597c9a0cad1be412b7fa46ea006819a3df9ac23118b4

SHA512
b01fc37ac84b81df8d7657000295aed7eb50aaf7f13ab2b2be9030c9f83ed1559318c83c78b4a29926d7d30e9eea9538d123ef4a649179be5a5b54ee71ed9b49

Download Submit
C:\ProgramData\smes\kswebshield.dll

Filesize
441KB

MD5
7851449473178f9782263d51bc5e3bbc

SHA1
ad5148ee1bed2348b320c62c025d52fbcbb28799

SHA256
c3bc7ec8428f0bb210a0597c9a0cad1be412b7fa46ea006819a3df9ac23118b4

SHA512
b01fc37ac84b81df8d7657000295aed7eb50aaf7f13ab2b2be9030c9f83ed1559318c83c78b4a29926d7d30e9eea9538d123ef4a649179be5a5b54ee71ed9b49

Download Submit
C:\ProgramData\smes\kswebshield.dll

Filesize
441KB

MD5
7851449473178f9782263d51bc5e3bbc

SHA1
ad5148ee1bed2348b320c62c025d52fbcbb28799

SHA256
c3bc7ec8428f0bb210a0597c9a0cad1be412b7fa46ea006819a3df9ac23118b4

SHA512
b01fc37ac84b81df8d7657000295aed7eb50aaf7f13ab2b2be9030c9f83ed1559318c83c78b4a29926d7d30e9eea9538d123ef4a649179be5a5b54ee71ed9b49

Download Submit
C:\ProgramData\smes\kwssp.dll

Filesize
425KB

MD5
bf5dcfd9da0514334d41cbd80d2a9138

SHA1
802f9e0b82edca56be08a33b2ba874b34c31f1e3

SHA256
f9506cf9a87aa6bfbf07f2124f2785a711b27a70839ebb95bdd4b2cf747fb060

SHA512
246796f2e201cde30043eaa2c0ffb4d2b3bea2bae97261a022824c31a42d2b08998b1bdcd436e8392bdd153dd6fadf9ba69361c7316a6bfda5d475678b7aa5cc

Download Submit
C:\ProgramData\smes\kwssp.dll

Filesize
425KB

MD5
bf5dcfd9da0514334d41cbd80d2a9138

SHA1
802f9e0b82edca56be08a33b2ba874b34c31f1e3

SHA256
f9506cf9a87aa6bfbf07f2124f2785a711b27a70839ebb95bdd4b2cf747fb060

SHA512
246796f2e201cde30043eaa2c0ffb4d2b3bea2bae97261a022824c31a42d2b08998b1bdcd436e8392bdd153dd6fadf9ba69361c7316a6bfda5d475678b7aa5cc

Download Submit
C:\ProgramData\smes\kwsui.dll

Filesize
433KB

MD5
45199dab51eeece95728abfe25e18f35

SHA1
59ab0fe25aa2adc253adbecba6862e7432df1c39

SHA256
a22006861cac6a849346282e2f7729deeb8f68bf29f13c15ae33d20311f77391

SHA512
825c6ae1f88cec3d6c469e6a15cad0430845ecc8d436777092f4c5fe8ecd02abbfeb3e2a17b2f4896b9d6e4b2d229a8b83bfdda75a3e025fc32f86610c6eef12

Download Submit
C:\ProgramData\smes\kwsui.dll

Filesize
433KB

MD5
45199dab51eeece95728abfe25e18f35

SHA1
59ab0fe25aa2adc253adbecba6862e7432df1c39

SHA256
a22006861cac6a849346282e2f7729deeb8f68bf29f13c15ae33d20311f77391

SHA512
825c6ae1f88cec3d6c469e6a15cad0430845ecc8d436777092f4c5fe8ecd02abbfeb3e2a17b2f4896b9d6e4b2d229a8b83bfdda75a3e025fc32f86610c6eef12

Download Submit
C:\ProgramData\smes\smes.exe

Filesize
209KB

MD5
1fa47f5b173cee5ef9c3ee1bda0c321e

SHA1
60ee40236f960affb01d569a32e1b05888bb081a

SHA256
b21526716068d2a8550780038e2b5ddb843d77890a07ec82ed9ce9dd0be52c64

SHA512
01f39376269a75510347fcf66ff2585b25d5e6e10e26b7feefa3af66e712a5f50c62bff6d40abee733e1ce965d17a2e443664838268eb7c7a2e36fc1c024224d

Download Submit
C:\ProgramData\smes\smes.exe

Filesize
209KB

MD5
1fa47f5b173cee5ef9c3ee1bda0c321e

SHA1
60ee40236f960affb01d569a32e1b05888bb081a

SHA256
b21526716068d2a8550780038e2b5ddb843d77890a07ec82ed9ce9dd0be52c64

SHA512
01f39376269a75510347fcf66ff2585b25d5e6e10e26b7feefa3af66e712a5f50c62bff6d40abee733e1ce965d17a2e443664838268eb7c7a2e36fc1c024224d

Download Submit
C:\ProgramData\smes\smes.exe

Filesize
209KB

MD5
1fa47f5b173cee5ef9c3ee1bda0c321e

SHA1
60ee40236f960affb01d569a32e1b05888bb081a

SHA256
b21526716068d2a8550780038e2b5ddb843d77890a07ec82ed9ce9dd0be52c64

SHA512
01f39376269a75510347fcf66ff2585b25d5e6e10e26b7feefa3af66e712a5f50c62bff6d40abee733e1ce965d17a2e443664838268eb7c7a2e36fc1c024224d

Download Submit
C:\ProgramData\smes\smes.exe

Filesize
209KB

MD5
1fa47f5b173cee5ef9c3ee1bda0c321e

SHA1
60ee40236f960affb01d569a32e1b05888bb081a

SHA256
b21526716068d2a8550780038e2b5ddb843d77890a07ec82ed9ce9dd0be52c64

SHA512
01f39376269a75510347fcf66ff2585b25d5e6e10e26b7feefa3af66e712a5f50c62bff6d40abee733e1ce965d17a2e443664838268eb7c7a2e36fc1c024224d

Download Submit
C:\ProgramData\smes\smes.exe

Filesize
209KB

MD5
1fa47f5b173cee5ef9c3ee1bda0c321e

SHA1
60ee40236f960affb01d569a32e1b05888bb081a

SHA256
b21526716068d2a8550780038e2b5ddb843d77890a07ec82ed9ce9dd0be52c64

SHA512
01f39376269a75510347fcf66ff2585b25d5e6e10e26b7feefa3af66e712a5f50c62bff6d40abee733e1ce965d17a2e443664838268eb7c7a2e36fc1c024224d

Download Submit
C:\ProgramData\smes\u.bat

Filesize
44B

MD5
704efba1aee1454561da552dda430498

SHA1
d20fb96683f769eb9cef1b0a068bcba70aeab9c2

SHA256
80b08d35bd27636e0774ce35ab57306f76edc6a0f7058cb1f93733cdf88bf94c

SHA512
7e0c9ede686238703af4893af8842c05c48ab1681ae273b32d8085cf1a17aae946c0c823a0a418787522a551d684367259ff8203ebca6e4ec69b6ded95231bd0

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsjB7FB.tmp\AccessControl.dll

Filesize
10KB

MD5
055f4f9260e07fc83f71877cbb7f4fad

SHA1
a245131af1a182de99bd74af9ff1fab17977a72f

SHA256
4209588362785b690d08d15cd982b8d1c62c348767ca19114234b21d5df74ddc

SHA512
a8e82dc4435ed938f090f43df953ddad9b0075f16218c09890c996299420162d64b1dbfbf613af37769ae796717eec78204dc786b757e8b1d13d423d4ee82e26

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsjB7FB.tmp\FindProcDLL.dll

Filesize
3KB

MD5
8614c450637267afacad1645e23ba24a

SHA1
e7b7b09b5bbc13e910aa36316d9cc5fc5d4dcdc2

SHA256
0fa04f06a6de18d316832086891e9c23ae606d7784d5d5676385839b21ca2758

SHA512
af46cd679097584ff9a1d894a729b6397f4b3af17dff3e6f07bef257bc7e48ffa341d82daf298616cd5df1450fc5ab7435cacb70f27302b6db193f01a9f8391b

Download Submit
C:\Users\Admin\AppData\Local\Temp\temg_tmp.bat

Filesize
153B

MD5
065fdf030724876def91d39bfb75a68d

SHA1
6f39fa73bd5a88fcf1f72673fa7274fe608b3290

SHA256
e37a39737eb1239516f933c8a21162e3ca7e41a63270d038d5489243387a02f0

SHA512
7bd7e7fc04caba018f385d02a16b2fc3208b588a37d4da36f990783b0458ef57746928c2f892d946d9a2d164f3b3a915095e775390df3240b91897521b808d4a

Download Submit
memory/2356-158-0x0000000001F70000-0x0000000001FE1000-memory.dmp

Filesize
452KB

Download
memory/5076-133-0x0000000010000000-0x0000000010003000-memory.dmp

Filesize
12KB

Download