Analysis
- max time kernel
53s - max time network
56s - platform
windows7_x64 - resource
win7-20221111-en - resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system - submitted
31/12/2022, 17:20
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20221111-en
10 signatures
150 seconds
General
- Target file.exe
- Size 2.0MB
- Sample221231-vwe3waaa77
- SHA256 ee706ea8e3af45baa554d13e8689d31f47ec689238a2cc5bc397524697329e28
- MD5 d5ec7005080427a10d54cb09db89973d
- SHA1 f34df626413f405f0cf8f50fa429c1967a194706
- SHA512 7f91d7eef3a5df7de80ae651e16297332666ce10e52c19fad1fd8c2ff9e40cc3309f8a3402fca88c70776f0a0d6e190c65fbc3429ecd7c83c089de0afc10e740
- SSDEEP 49152:CiM+TdAMNXTDuNgwghhgVWbBkHPgPHWoj33SRjLX/nvYX0G:CiMWAMRuStPb6guoLSRjLvvYx
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
Family
-
nymaim
C2
-
45.139.105.171
-
85.31.46.167
Signatures
- Executes dropped EXE 3 IoCs
pid Process 1552 is-TOU60.tmp 1112 SplitFiles126.exe 1172 SQk5HGZn8Ps.exe - Loads dropped DLL 10 IoCs
pid Process 1672 file.exe 1552 is-TOU60.tmp 1552 is-TOU60.tmp 1552 is-TOU60.tmp 1552 is-TOU60.tmp 1112 SplitFiles126.exe 1112 SplitFiles126.exe 1112 SplitFiles126.exe 1172 SQk5HGZn8Ps.exe 1172 SQk5HGZn8Ps.exe - Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Drops file in Program Files directory 17 IoCs
description ioc Process File created C:\Program Files (x86)\Split Files\language\is-N8HS6.tmp is-TOU60.tmp File created C:\Program Files (x86)\Split Files\unins000.dat is-TOU60.tmp File created C:\Program Files (x86)\Split Files\is-UEP76.tmp is-TOU60.tmp File created C:\Program Files (x86)\Split Files\is-MKAMM.tmp is-TOU60.tmp File created C:\Program Files (x86)\Split Files\language\is-VMVQQ.tmp is-TOU60.tmp File created C:\Program Files (x86)\Split Files\language\is-438DH.tmp is-TOU60.tmp File created C:\Program Files (x86)\Split Files\language\is-PPCHC.tmp is-TOU60.tmp File created C:\Program Files (x86)\Split Files\language\is-8I73Q.tmp is-TOU60.tmp File created C:\Program Files (x86)\Split Files\is-97GP6.tmp is-TOU60.tmp File created C:\Program Files (x86)\Split Files\language\is-L4GNA.tmp is-TOU60.tmp File created C:\Program Files (x86)\Split Files\language\is-UVD3B.tmp is-TOU60.tmp File created C:\Program Files (x86)\Split Files\language\is-NB7IJ.tmp is-TOU60.tmp File opened for modification C:\Program Files (x86)\Split Files\unins000.dat is-TOU60.tmp File opened for modification C:\Program Files (x86)\Split Files\SplitFiles126.exe is-TOU60.tmp File created C:\Program Files (x86)\Split Files\language\is-3AO9B.tmp is-TOU60.tmp File created C:\Program Files (x86)\Split Files\is-0MMJA.tmp is-TOU60.tmp File created C:\Program Files (x86)\Split Files\is-HCIKA.tmp is-TOU60.tmp - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Kills process with taskkill 1 IoCs
pid Process 1844 taskkill.exe - Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1112 SplitFiles126.exe 1112 SplitFiles126.exe 1112 SplitFiles126.exe - Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 1844 taskkill.exe Token: SeRestorePrivilege 1552 is-TOU60.tmp Token: SeBackupPrivilege 1552 is-TOU60.tmp - Suspicious use of WriteProcessMemory 35 IoCs
description pid Process procid_target PID 1672 wrote to memory of 1552 1672 file.exe 28 PID 1672 wrote to memory of 1552 1672 file.exe 28 PID 1672 wrote to memory of 1552 1672 file.exe 28 PID 1672 wrote to memory of 1552 1672 file.exe 28 PID 1672 wrote to memory of 1552 1672 file.exe 28 PID 1672 wrote to memory of 1552 1672 file.exe 28 PID 1672 wrote to memory of 1552 1672 file.exe 28 PID 1552 wrote to memory of 1112 1552 is-TOU60.tmp 29 PID 1552 wrote to memory of 1112 1552 is-TOU60.tmp 29 PID 1552 wrote to memory of 1112 1552 is-TOU60.tmp 29 PID 1552 wrote to memory of 1112 1552 is-TOU60.tmp 29 PID 1552 wrote to memory of 1112 1552 is-TOU60.tmp 29 PID 1552 wrote to memory of 1112 1552 is-TOU60.tmp 29 PID 1552 wrote to memory of 1112 1552 is-TOU60.tmp 29 PID 1112 wrote to memory of 1172 1112 SplitFiles126.exe 30 PID 1112 wrote to memory of 1172 1112 SplitFiles126.exe 30 PID 1112 wrote to memory of 1172 1112 SplitFiles126.exe 30 PID 1112 wrote to memory of 1172 1112 SplitFiles126.exe 30 PID 1112 wrote to memory of 1172 1112 SplitFiles126.exe 30 PID 1112 wrote to memory of 1172 1112 SplitFiles126.exe 30 PID 1112 wrote to memory of 1172 1112 SplitFiles126.exe 30 PID 1112 wrote to memory of 1368 1112 SplitFiles126.exe 33 PID 1112 wrote to memory of 1368 1112 SplitFiles126.exe 33 PID 1112 wrote to memory of 1368 1112 SplitFiles126.exe 33 PID 1112 wrote to memory of 1368 1112 SplitFiles126.exe 33 PID 1112 wrote to memory of 1368 1112 SplitFiles126.exe 33 PID 1112 wrote to memory of 1368 1112 SplitFiles126.exe 33 PID 1112 wrote to memory of 1368 1112 SplitFiles126.exe 33 PID 1368 wrote to memory of 1844 1368 cmd.exe 35 PID 1368 wrote to memory of 1844 1368 cmd.exe 35 PID 1368 wrote to memory of 1844 1368 cmd.exe 35 PID 1368 wrote to memory of 1844 1368 cmd.exe 35 PID 1368 wrote to memory of 1844 1368 cmd.exe 35 PID 1368 wrote to memory of 1844 1368 cmd.exe 35 PID 1368 wrote to memory of 1844 1368 cmd.exe 35
Processes
-
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1672 -
C:\Users\Admin\AppData\Local\Temp\is-QMEFD.tmp\is-TOU60.tmp"C:\Users\Admin\AppData\Local\Temp\is-QMEFD.tmp\is-TOU60.tmp" /SL4 $7012C "C:\Users\Admin\AppData\Local\Temp\file.exe" 1798395 2094082⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1552 -
C:\Program Files (x86)\Split Files\SplitFiles126.exe"C:\Program Files (x86)\Split Files\SplitFiles126.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1112 -
C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\SQk5HGZn8Ps.exe4⤵
- Executes dropped EXE
- Loads dropped DLL
PID:1172
-
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "SplitFiles126.exe" /f & erase "C:\Program Files (x86)\Split Files\SplitFiles126.exe" & exit4⤵
- Suspicious use of WriteProcessMemory
PID:1368 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "SplitFiles126.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1844
-
-
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Program Files (x86)\Split Files\SplitFiles126.exe
- Size 3.3MB
- SHA256 9e5572c731a549275c7523c9c93d6753839619cdff435947949ab453572fe6b8
- MD5 75228352812118c36eacb87a5eae7b84
- SHA1 b533cb21d4a5dfb47ccc41c377b3292999b7a8a0
- SHA512 7377ba6959e04990e6a9f28e04a19339b964a12d76039fb96c8d050899edaffe0c07ec3e0302916caecfd861dc79716edb0f358cb5e0cf5d72bd2da9e7865f1b
- SSDEEP 98304:1dNrShBRULoXDeCgEZ+rAZ22tC7IMfFwxqo:1DrSvRWoXDeCBtR
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Program Files (x86)\Split Files\SplitFiles126.exe
- Size 3.3MB
- SHA256 9e5572c731a549275c7523c9c93d6753839619cdff435947949ab453572fe6b8
- MD5 75228352812118c36eacb87a5eae7b84
- SHA1 b533cb21d4a5dfb47ccc41c377b3292999b7a8a0
- SHA512 7377ba6959e04990e6a9f28e04a19339b964a12d76039fb96c8d050899edaffe0c07ec3e0302916caecfd861dc79716edb0f358cb5e0cf5d72bd2da9e7865f1b
- SSDEEP 98304:1dNrShBRULoXDeCgEZ+rAZ22tC7IMfFwxqo:1DrSvRWoXDeCBtR
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\is-QMEFD.tmp\is-TOU60.tmp
- Size 798KB
- SHA256 5639f567be5695dc2a4b029185bf2ae9147e98a5194c01726f864ba2fbffcfd1
- MD5 79879462fcb12d62e92b4bfeba0d561f
- SHA1 620fc7ef6fe45f32c64ee250864831323422749e
- SHA512 32d38130a6963a829f60d3932fa1439b85bf0338b633c5fb62a9bb94df4567a9cbbbed83bc75b52992e8cefa7334dfe5065ba8d28d39839206898257c645a72d
- SSDEEP 12288:QpmOmg1k2bfrP437QzH/A6A40lG77NzknuGyhmxOu:ymt2bfrP437QzH/A6A7E7dVPhmxOu
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\is-QMEFD.tmp\is-TOU60.tmp
- Size 798KB
- SHA256 5639f567be5695dc2a4b029185bf2ae9147e98a5194c01726f864ba2fbffcfd1
- MD5 79879462fcb12d62e92b4bfeba0d561f
- SHA1 620fc7ef6fe45f32c64ee250864831323422749e
- SHA512 32d38130a6963a829f60d3932fa1439b85bf0338b633c5fb62a9bb94df4567a9cbbbed83bc75b52992e8cefa7334dfe5065ba8d28d39839206898257c645a72d
- SSDEEP 12288:QpmOmg1k2bfrP437QzH/A6A40lG77NzknuGyhmxOu:ymt2bfrP437QzH/A6A7E7dVPhmxOu
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\SQk5HGZn8Ps.exe
- Size 72KB
- SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
- MD5 3fb36cb0b7172e5298d2992d42984d06
- SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
- SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
- SSDEEP 1536:bvUpDLxyxA14o3/M238r6+XfHAgbqmE8MpKdwuasZLUM7DsWlXcdyZgfmi:WDLZKa/MtXfHAgbqmEtxsfmyZgfmi
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\SQk5HGZn8Ps.exe
- Size 72KB
- SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
- MD5 3fb36cb0b7172e5298d2992d42984d06
- SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
- SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
- SSDEEP 1536:bvUpDLxyxA14o3/M238r6+XfHAgbqmE8MpKdwuasZLUM7DsWlXcdyZgfmi:WDLZKa/MtXfHAgbqmEtxsfmyZgfmi
- MD5 SHA1 SHA512 SSDEEP
- Path \Program Files (x86)\Split Files\SplitFiles126.exe
- Size 3.3MB
- SHA256 9e5572c731a549275c7523c9c93d6753839619cdff435947949ab453572fe6b8
- MD5 75228352812118c36eacb87a5eae7b84
- SHA1 b533cb21d4a5dfb47ccc41c377b3292999b7a8a0
- SHA512 7377ba6959e04990e6a9f28e04a19339b964a12d76039fb96c8d050899edaffe0c07ec3e0302916caecfd861dc79716edb0f358cb5e0cf5d72bd2da9e7865f1b
- SSDEEP 98304:1dNrShBRULoXDeCgEZ+rAZ22tC7IMfFwxqo:1DrSvRWoXDeCBtR
- MD5 SHA1 SHA512 SSDEEP
- Path \Program Files (x86)\Split Files\SplitFiles126.exe
- Size 3.3MB
- SHA256 9e5572c731a549275c7523c9c93d6753839619cdff435947949ab453572fe6b8
- MD5 75228352812118c36eacb87a5eae7b84
- SHA1 b533cb21d4a5dfb47ccc41c377b3292999b7a8a0
- SHA512 7377ba6959e04990e6a9f28e04a19339b964a12d76039fb96c8d050899edaffe0c07ec3e0302916caecfd861dc79716edb0f358cb5e0cf5d72bd2da9e7865f1b
- SSDEEP 98304:1dNrShBRULoXDeCgEZ+rAZ22tC7IMfFwxqo:1DrSvRWoXDeCBtR
- MD5 SHA1 SHA512 SSDEEP
- Path \Program Files (x86)\Split Files\SplitFiles126.exe
- Size 3.3MB
- SHA256 9e5572c731a549275c7523c9c93d6753839619cdff435947949ab453572fe6b8
- MD5 75228352812118c36eacb87a5eae7b84
- SHA1 b533cb21d4a5dfb47ccc41c377b3292999b7a8a0
- SHA512 7377ba6959e04990e6a9f28e04a19339b964a12d76039fb96c8d050899edaffe0c07ec3e0302916caecfd861dc79716edb0f358cb5e0cf5d72bd2da9e7865f1b
- SSDEEP 98304:1dNrShBRULoXDeCgEZ+rAZ22tC7IMfFwxqo:1DrSvRWoXDeCBtR
- MD5 SHA1 SHA512 SSDEEP
- Path \Users\Admin\AppData\Local\Temp\is-262PB.tmp\_iscrypt.dll
- Size 2KB
- SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
- MD5 a69559718ab506675e907fe49deb71e9
- SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
- SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
- MD5 SHA1 SHA512
- Path \Users\Admin\AppData\Local\Temp\is-262PB.tmp\_isetup\_shfoldr.dll
- Size 22KB
- SHA256 9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
- MD5 92dc6ef532fbb4a5c3201469a5b5eb63
- SHA1 3e89ff837147c16b4e41c30d6c796374e0b8e62c
- SHA512 9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
- SSDEEP 384:+Vm08QoKkiWZ76UJuP71W55iWHHoSHigH2euwsHTGHVb+VHHmnH+aHjHqLHxmoq1:2m08QotiCjJuPGw4
- MD5 SHA1 SHA512 SSDEEP
- Path \Users\Admin\AppData\Local\Temp\is-262PB.tmp\_isetup\_shfoldr.dll
- Size 22KB
- SHA256 9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
- MD5 92dc6ef532fbb4a5c3201469a5b5eb63
- SHA1 3e89ff837147c16b4e41c30d6c796374e0b8e62c
- SHA512 9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
- SSDEEP 384:+Vm08QoKkiWZ76UJuP71W55iWHHoSHigH2euwsHTGHVb+VHHmnH+aHjHqLHxmoq1:2m08QotiCjJuPGw4
- MD5 SHA1 SHA512 SSDEEP
- Path \Users\Admin\AppData\Local\Temp\is-QMEFD.tmp\is-TOU60.tmp
- Size 798KB
- SHA256 5639f567be5695dc2a4b029185bf2ae9147e98a5194c01726f864ba2fbffcfd1
- MD5 79879462fcb12d62e92b4bfeba0d561f
- SHA1 620fc7ef6fe45f32c64ee250864831323422749e
- SHA512 32d38130a6963a829f60d3932fa1439b85bf0338b633c5fb62a9bb94df4567a9cbbbed83bc75b52992e8cefa7334dfe5065ba8d28d39839206898257c645a72d
- SSDEEP 12288:QpmOmg1k2bfrP437QzH/A6A40lG77NzknuGyhmxOu:ymt2bfrP437QzH/A6A7E7dVPhmxOu
- MD5 SHA1 SHA512 SSDEEP
- Path \Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\SQk5HGZn8Ps.exe
- Size 72KB
- SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
- MD5 3fb36cb0b7172e5298d2992d42984d06
- SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
- SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
- SSDEEP 1536:bvUpDLxyxA14o3/M238r6+XfHAgbqmE8MpKdwuasZLUM7DsWlXcdyZgfmi:WDLZKa/MtXfHAgbqmEtxsfmyZgfmi
- MD5 SHA1 SHA512 SSDEEP
- Path \Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\SQk5HGZn8Ps.exe
- Size 72KB
- SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
- MD5 3fb36cb0b7172e5298d2992d42984d06
- SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
- SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
- SSDEEP 1536:bvUpDLxyxA14o3/M238r6+XfHAgbqmE8MpKdwuasZLUM7DsWlXcdyZgfmi:WDLZKa/MtXfHAgbqmEtxsfmyZgfmi
- MD5 SHA1 SHA512 SSDEEP
- Path \Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\SQk5HGZn8Ps.exe
- Size 72KB
- SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
- MD5 3fb36cb0b7172e5298d2992d42984d06
- SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
- SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
- SSDEEP 1536:bvUpDLxyxA14o3/M238r6+XfHAgbqmE8MpKdwuasZLUM7DsWlXcdyZgfmi:WDLZKa/MtXfHAgbqmEtxsfmyZgfmi
- MD5 SHA1 SHA512 SSDEEP